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Damon Estep

2006-Jan-25 23:53 UTC

[Asterisk-Users] * point to point t1 solution?

Can anyone point me to a reference or sample config for bypassing a
nailed up (point to point) t1 between two PBXs with asterisk and a pair
of t1 cards?

 

Right now I have 2 Nortel norstars connected to each other via a leased
line t1. I also have a solid 10mbps low latency microwave link between
the 2 sites.

 

My goal is to run an asterisk box at each end with a t1 card and
Ethernet card to act as a TDM<>SIP gateway to bypass the nailed T1 in a
relatively dumb configuration, with the goal of migrating off of the
norstars eventually.

 

In past situations I would have done this with a pair of Cisco routers
with T1 interfaces in them but in this case I want to get asterisk into
the picture as an eventual replacement for the norstars.

 

 

 

 

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Jean-Michel Hiver

2006-Jan-26 01:36 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Damon Estep a ?crit :
> Can anyone point me to a reference or sample config for bypassing a 
> nailed up (point to point) t1 between two PBXs with asterisk and a 
> pair of t1 cards?
>
>  
>
> Right now I have 2 Nortel norstars connected to each other via a 
> leased line t1. I also have a solid 10mbps low latency microwave link 
> between the 2 sites.
>You probably need a couple of T1 cards, and some paid consulting to get 
it working (I've never done it myself but that's how I would do it if I 
was in a hurry)
 
> My goal is to run an asterisk box at each end with a t1 card and 
> Ethernet card to act as a TDM<>SIP gateway to bypass the nailed T1 in
> a relatively dumb configuration, with the goal of migrating off of the 
> norstars eventually.
>If it's a point to point Asterisk <-> Asterisk configuration, why use 
SIP rather than IAX? IAX configuration is very easy, so once you get the 
norstar <-> asterisk link up it'll be a piece of cake.

Cheers,
Jean-Michel.

-- 
Jean-Michel Hiver - http://ykoz.net/
D?couvrez la R?union des Technologies IP & Telecom
TEL: +262 (0)262 55 03 98 - RCS 434 273 330 SAINT PIERRE

Damon Estep

2006-Jan-26 01:44 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Jean-Michel,

You missed the entire point - the question is IS ASTERISK CAPABLE OF EMULATING A
POINT TO POINT T1 BETWEEN 2 BOXES, AND IF SO ARE THERE ANY WEB BASED HINTS I
MIGHT LOOK AT?  Not WILL YOU DO IT FOR ME?

Your response to this post was un-informative and quite frankly it is the type
of useless response that most mailing lists and newsgroups could do without.

Damon
> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> bounces@lists.digium.com] On Behalf Of Jean-Michel Hiver
> Sent: Thursday, January 26, 2006 1:36 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] * point to point t1 solution?
> 
> Damon Estep a ?crit :
> 
> > Can anyone point me to a reference or sample config for bypassing a
> > nailed up (point to point) t1 between two PBXs with asterisk and a
> > pair of t1 cards?
> >
> >
> >
> > Right now I have 2 Nortel norstars connected to each other via a
> > leased line t1. I also have a solid 10mbps low latency microwave link
> > between the 2 sites.
> >
> You probably need a couple of T1 cards, and some paid consulting to get
> it working (I've never done it myself but that's how I would do it
if I
> was in a hurry)
> 
> 
> > My goal is to run an asterisk box at each end with a t1 card and
> > Ethernet card to act as a TDM<>SIP gateway to bypass the nailed
T1 in
> > a relatively dumb configuration, with the goal of migrating off of the
> > norstars eventually.
> >
> If it's a point to point Asterisk <-> Asterisk configuration, why
use
> SIP rather than IAX? IAX configuration is very easy, so once you get the
> norstar <-> asterisk link up it'll be a piece of cake.
> 
> Cheers,
> Jean-Michel.
> 
> --
> Jean-Michel Hiver - http://ykoz.net/
> D?couvrez la R?union des Technologies IP & Telecom
> TEL: +262 (0)262 55 03 98 - RCS 434 273 330 SAINT PIERRE
> 
> 
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
> 
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users

Damon Estep

2006-Jan-26 02:21 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Actually, it is a quite appropriate response to ANYONE that includes this type
of comment in their reply

 

"You probably need a couple of T1 cards, and some paid consulting to get it
working (I've never done it myself but that's how I would do it if I was
in a hurry)"

 

Perhaps something like this would have been better received;

 

"I know it can (or cannot) be done, and here is the name of someone that
might be willing to help you for a fee"

 

Look back though the archives and you will see that I have had some
participation here myself  in the past...

 

D

 

________________________________

From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Simon Woodhead
Sent: Thursday, January 26, 2006 2:01 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] * point to point t1 solution?

 

Bad day Damon? I think your comments are a little harsh towards someone who is
an active and informed contributor to the list. Jean-Michel could have ignored
you but he chose to share what he could. Maybe someone else will have the
complete answer to your question.

On 1/26/06, Damon Estep <damon@suburbanbroadband.net> wrote:

Jean-Michel,

You missed the entire point - the question is IS ASTERISK CAPABLE OF EMULATING A
POINT TO POINT T1 BETWEEN 2 BOXES, AND IF SO ARE THERE ANY WEB BASED HINTS I
MIGHT LOOK AT?  Not WILL YOU DO IT FOR ME?

Your response to this post was un-informative and quite frankly it is the type
of useless response that most mailing lists and newsgroups could do without.

Damon
> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> bounces@lists.digium.com ] On Behalf Of Jean-Michel Hiver
> Sent: Thursday, January 26, 2006 1:36 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] * point to point t1 solution? 
>
> Damon Estep a ?crit :
>
> > Can anyone point me to a reference or sample config for bypassing a
> > nailed up (point to point) t1 between two PBXs with asterisk and a
> > pair of t1 cards? 
> >
> >
> >
> > Right now I have 2 Nortel norstars connected to each other via a
> > leased line t1. I also have a solid 10mbps low latency microwave link
> > between the 2 sites. 
> >
> You probably need a couple of T1 cards, and some paid consulting to get
> it working (I've never done it myself but that's how I would do it
if I
> was in a hurry)
>
>
> > My goal is to run an asterisk box at each end with a t1 card and 
> > Ethernet card to act as a TDM<>SIP gateway to bypass the nailed
T1 in
> > a relatively dumb configuration, with the goal of migrating off of the
> > norstars eventually.
> >
> If it's a point to point Asterisk <-> Asterisk configuration, why
use
> SIP rather than IAX? IAX configuration is very easy, so once you get the
> norstar <-> asterisk link up it'll be a piece of cake. 
>
> Cheers,
> Jean-Michel.
>
> --
> Jean-Michel Hiver - http://ykoz.net/
> D?couvrez la R?union des Technologies IP & Telecom
> TEL: +262 (0)262 55 03 98 - RCS 434 273 330 SAINT PIERRE 
>
>
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit: 
>    http://lists.digium.com/mailman/listinfo/asterisk-users_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --

Asterisk-Users mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users 

 

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Damon Estep

2006-Jan-26 03:03 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Jean-Michel,

I agree with all of your comments, and would be willing to bet $100 that NO
AMOUNT OF GOOGLING will answer this question definitively.

After reviewing Adrian Carters very informative response regarding TDMoE I am
getting closer to what I need to know (now my googles include
"asterisk" AND "TDMoE").

This is CLEARLY uncharted territory, while I'll bet it has been done before,
no one took the time to document it.

My return to the list if I am successful will be to document the config on the
wiki... fair exchange?

And, if along the way I find an EXPERT in this area with REAL WORLD PRODUCTION
EXPERIENCE I will gladly pay the fees, but I am not about to shell out anything
to pay some know-it-all to educate themselves and provide me a half baked
solution that has never been put to the real world test.

D


> Damon Estep a ?crit :
> 
> >Jean-Michel,
> >
> >You missed the entire point - the question is IS ASTERISK CAPABLE OF
> EMULATING A POINT TO POINT T1 BETWEEN 2 BOXES, AND IF SO ARE THERE ANY WEB
> BASED HINTS I MIGHT LOOK AT?  Not WILL YOU DO IT FOR ME?
> >
> >
> Yes, I think Asterisk can do what you are trying to achieve. No, I
don't
> know how to do it, and no I won't do it for you since I've never
been in
> the situation you're in.
> 
> As for "web based hints", with some experience I've found
that google is
> as good as asking the mailing list. If you have no success with the
> mailing list, the wiki (voip-info.org) and google, you can try the irc
> channel #asterisk on freenode.
> 
> If that still doesn't work, shelling out a few hundred bucks for a
> consultant to help you do it - and train you in the process - is the
> other alternative, and is often a good deal.
> 
> I've done it a couple of times myself, and it's awesome how far
people
> can get you and how hard they try when you recognize the value of their
> work with some money (as opposed to just asking nicely).
> 
> Cheers,
> Jean-Michel.
> 
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
> 
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users

Damon Estep

2006-Jan-26 06:19 UTC

head link

[Asterisk-Users] * point to point t1 solution?

That would not be a nailed up t1 - signaling at both ends would be via asterisk.

I was trying to determine if there is a way to configure asterisk to emulate a
ptp t1 passively (no signaling) - essentially providing the same type of end to
end circuit you would get if you ordered a point to point esf/b8zs t1 from the
telco.

I know how to set up asterisk to talk to the Nortel (where the Nortel thinks
asterisk is a telco trunk) - but that is not my goal here.

I want to replace a T1 TIE TRUNK between to Nortel's using Digium t1
interfaces and an IP link between asterisk boxes, but still allow the Nortel to
pass signaling directly back and forth.

Still want to take the challenge?

> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> bounces@lists.digium.com] On Behalf Of Sean Cook
> Sent: Thursday, January 26, 2006 6:12 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] * point to point t1 solution?
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> 
> Damon Estep wrote:
> > Jean-Michel,
> >
> > I agree with all of your comments, and would be willing to bet $100
that
> NO AMOUNT OF GOOGLING will answer this question definitively.
> 
> I would almost be willing to take that bet... find your exact
> configuration is probably not going to happen... however finding enough
> information to piece it together is pretty straight forward...
> 
> http://www.tek-tips.com/viewthread.cfm?qid=1082800&page=10
> 
> This link tells you that someone else has connected asterisk to a T1
> interface on a Nortel NorthStar.   (first link for asterisk nortel
> northstar).
> 
> http://www.voip-info.org/wiki-Asterisk+Zaptel+Installation
> 
> Whould give you a start as to how to configure the T1 card (zaptel
> drivers).
> 
> http://www.voip-info.org/wiki/index.php?page=Asterisk+config+zaptel.conf
> 
> Would give you a start to configure the zaptel.conf
> 
> 
> http://www.voip-info.org/wiki-IAX
> 
> Gives you the skinny (no pun intended) on IAX and working with it to set
> up the trunk...
> 
> 
> So it would be logical to assume that if you can connect to the nortel
> and asterisk can talk to asterisk via (iax or sip or anything else) ...
> you only need to set up an appropriate dial plan to pass extensions back
> and forth.
> 
> In /etc/zaptel.conf:
>    span=1,1,0,esf,b8zs
>    bchan=1-23
>    dchan=24
> 
> In /etc/asterisk/zapata.conf:
>    switchtype=national
>    context=from-pbx2
>    signalling=pri_cpe
>    group=0
>    channel => 1-23
> 
> 
> [from-iax-trunk]
> ; yeah i know this wouldn't be recommended...
> exten => _X.,1,Dial(ZAP/g0/${EXTEN},20)
> 
> [from-pbx2]
> ; still not recommended...
> exten => _X.,1,Dial(IAX/pbx2/${EXTEN},20)
> 
> 
> This is not "Uncharted Territory" this is thinking about
something as a
> sum of its parts not as if "No one else has a solution just like
me"
> 
> >
> > After reviewing Adrian Carters very informative response regarding
TDMoE
> I am getting closer to what I need to know (now my googles include
> "asterisk" AND "TDMoE").
> >
> > This is CLEARLY uncharted territory, while I'll bet it has been
done
> before, no one took the time to document it.
> >
> 
> No it isn't... I know plenty of people who have connected legacy
systems
> to IP.  I am doing it with a Merlin Legend.
> 
> > My return to the list if I am successful will be to document the
config
> on the wiki... fair exchange?
> >
> > And, if along the way I find an EXPERT in this area with REAL WORLD
> PRODUCTION EXPERIENCE I will gladly pay the fees, but I am not about to
> shell out anything to pay some know-it-all to educate themselves and
> provide me a half baked solution that has never been put to the real world
> test.
> 
> If you are LOOKING for REAL WORLD, EXACT RepReSenTAtions  (sorry
> couldn't resist) of exactly what you have... you are probably going to
> be out of luck.  But consider this:
> 
> 1.  There is plenty of ducumentation on connecting Legacy Systems to
> Asterisk
> 2.  There is plenty of documentation on connect two asterisk systems to
> eachother.
> 
> 
> 
> >
> > D
> >
> >
> >
> >
> >>Damon Estep a ?crit :
> >>
> >>
> >>>Jean-Michel,
> >>>
> >>>You missed the entire point - the question is IS ASTERISK
CAPABLE OF
> >>
> >>EMULATING A POINT TO POINT T1 BETWEEN 2 BOXES, AND IF SO ARE THERE
ANY
> WEB
> >>BASED HINTS I MIGHT LOOK AT?  Not WILL YOU DO IT FOR ME?
> >>
> >>>
> >>Yes, I think Asterisk can do what you are trying to achieve. No, I
don't
> >>know how to do it, and no I won't do it for you since I've
never been in
> >>the situation you're in.
> >>
> >>As for "web based hints", with some experience I've
found that google is
> >>as good as asking the mailing list. If you have no success with the
> >>mailing list, the wiki (voip-info.org) and google, you can try the
irc
> >>channel #asterisk on freenode.
> >>
> >>If that still doesn't work, shelling out a few hundred bucks
for a
> >>consultant to help you do it - and train you in the process - is
the
> >>other alternative, and is often a good deal.
> >>
> >>I've done it a couple of times myself, and it's awesome how
far people
> >>can get you and how hard they try when you recognize the value of
their
> >>work with some money (as opposed to just asking nicely).
> >>
> >>Cheers,
> >>Jean-Michel.
> >>
> >>_______________________________________________
> >>--Bandwidth and Colocation provided by Easynews.com --
> >>
> >>Asterisk-Users mailing list
> >>To UNSUBSCRIBE or update options visit:
> >>   http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> > _______________________________________________
> > --Bandwidth and Colocation provided by Easynews.com --
> >
> > Asterisk-Users mailing list
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
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> Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
> 
> iD8DBQFD2Mqgy9wPyZpnL2URAq79AJ96tr0fs4Br8YJFpq8ITWkRifj2lQCfej0f
> GD2sSPXXNKSGSJswke7JLng> =X86I
> -----END PGP SIGNATURE-----
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
> 
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users

Damon Estep

2006-Jan-26 06:40 UTC

head link

[Asterisk-Users] * point to point t1 solution?

TDMoE would allow a T1 like connection only over the local Ethernet segment,
since it is not an IP technology it can not be router across ip networks.

This would be useful to connect 2 asterisk boxes on the same Ethernet segment
(or with a crossover cable).

The advantage would be lower latency than SIP or IAX - the disadvantage being a
constant ~1000 packet per second Ethernet flow requires to keep the channels up.

Won't work...


> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> bounces@lists.digium.com] On Behalf Of Sean Cook
> Sent: Thursday, January 26, 2006 6:36 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] * point to point t1 solution?
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> http://www.voip-info.org/wiki-Asterisk+TDMoE
> 
> Damon Estep wrote:
> > That would not be a nailed up t1 - signaling at both ends would be via
> asterisk.
> >
> > I was trying to determine if there is a way to configure asterisk to
> emulate a ptp t1 passively (no signaling) - essentially providing the same
> type of end to end circuit you would get if you ordered a point to point
> esf/b8zs t1 from the telco.
> >
> > I know how to set up asterisk to talk to the Nortel (where the Nortel
> thinks asterisk is a telco trunk) - but that is not my goal here.
> >
> > I want to replace a T1 TIE TRUNK between to Nortel's using Digium
t1
> interfaces and an IP link between asterisk boxes, but still allow the
> Nortel to pass signaling directly back and forth.
> >
> > Still want to take the challenge?
> >
> >
> >
> >>-----Original Message-----
> >>From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-
> >>bounces@lists.digium.com] On Behalf Of Sean Cook
> >>Sent: Thursday, January 26, 2006 6:12 AM
> >>To: Asterisk Users Mailing List - Non-Commercial Discussion
> >>Subject: Re: [Asterisk-Users] * point to point t1 solution?
> >>
> >
> > Damon Estep wrote:
> >
> >>Jean-Michel,
> >
> >>I agree with all of your comments, and would be willing to bet $100
that
> >
> > NO AMOUNT OF GOOGLING will answer this question definitively.
> >
> > I would almost be willing to take that bet... find your exact
> > configuration is probably not going to happen... however finding
enough
> > information to piece it together is pretty straight forward...
> >
> > http://www.tek-tips.com/viewthread.cfm?qid=1082800&page=10
> >
> > This link tells you that someone else has connected asterisk to a T1
> > interface on a Nortel NorthStar.   (first link for asterisk nortel
> > northstar).
> >
> > http://www.voip-info.org/wiki-Asterisk+Zaptel+Installation
> >
> > Whould give you a start as to how to configure the T1 card (zaptel
> > drivers).
> >
> >
http://www.voip-info.org/wiki/index.php?page=Asterisk+config+zaptel.conf
> >
> > Would give you a start to configure the zaptel.conf
> >
> >
> > http://www.voip-info.org/wiki-IAX
> >
> > Gives you the skinny (no pun intended) on IAX and working with it to
set
> > up the trunk...
> >
> >
> > So it would be logical to assume that if you can connect to the nortel
> > and asterisk can talk to asterisk via (iax or sip or anything else)
...
> > you only need to set up an appropriate dial plan to pass extensions
back
> > and forth.
> >
> > In /etc/zaptel.conf:
> >    span=1,1,0,esf,b8zs
> >    bchan=1-23
> >    dchan=24
> >
> > In /etc/asterisk/zapata.conf:
> >    switchtype=national
> >    context=from-pbx2
> >    signalling=pri_cpe
> >    group=0
> >    channel => 1-23
> >
> >
> > [from-iax-trunk]
> > ; yeah i know this wouldn't be recommended...
> > exten => _X.,1,Dial(ZAP/g0/${EXTEN},20)
> >
> > [from-pbx2]
> > ; still not recommended...
> > exten => _X.,1,Dial(IAX/pbx2/${EXTEN},20)
> >
> >
> > This is not "Uncharted Territory" this is thinking about
something as a
> > sum of its parts not as if "No one else has a solution just like
me"
> >
> >
> >>After reviewing Adrian Carters very informative response regarding
TDMoE
> >
> > I am getting closer to what I need to know (now my googles include
> > "asterisk" AND "TDMoE").
> >
> >>This is CLEARLY uncharted territory, while I'll bet it has been
done
> >
> > before, no one took the time to document it.
> >
> > No it isn't... I know plenty of people who have connected legacy
systems
> > to IP.  I am doing it with a Merlin Legend.
> >
> >
> >>My return to the list if I am successful will be to document the
config
> >
> > on the wiki... fair exchange?
> >
> >>And, if along the way I find an EXPERT in this area with REAL WORLD
> >
> > PRODUCTION EXPERIENCE I will gladly pay the fees, but I am not about
to
> > shell out anything to pay some know-it-all to educate themselves and
> > provide me a half baked solution that has never been put to the real
> world
> > test.
> >
> > If you are LOOKING for REAL WORLD, EXACT RepReSenTAtions  (sorry
> > couldn't resist) of exactly what you have... you are probably
going to
> > be out of luck.  But consider this:
> >
> > 1.  There is plenty of ducumentation on connecting Legacy Systems to
> > Asterisk
> > 2.  There is plenty of documentation on connect two asterisk systems
to
> > eachother.
> >
> >
> >
> >
> >>D
> >
> >
> >
> >
> >
> >>>Damon Estep a ?crit :
> >
> >
> >
> >>>>Jean-Michel,
> >>>>
> >>>>You missed the entire point - the question is IS ASTERISK
CAPABLE OF
> >
> >>>EMULATING A POINT TO POINT T1 BETWEEN 2 BOXES, AND IF SO ARE
THERE ANY
> >
> > WEB
> >
> >>>BASED HINTS I MIGHT LOOK AT?  Not WILL YOU DO IT FOR ME?
> >
> >
> >>>Yes, I think Asterisk can do what you are trying to achieve.
No, I
> don't
> >>>know how to do it, and no I won't do it for you since
I've never been
> in
> >>>the situation you're in.
> >
> >>>As for "web based hints", with some experience
I've found that google
> is
> >>>as good as asking the mailing list. If you have no success with
the
> >>>mailing list, the wiki (voip-info.org) and google, you can try
the irc
> >>>channel #asterisk on freenode.
> >
> >>>If that still doesn't work, shelling out a few hundred
bucks for a
> >>>consultant to help you do it - and train you in the process -
is the
> >>>other alternative, and is often a good deal.
> >
> >>>I've done it a couple of times myself, and it's awesome
how far people
> >>>can get you and how hard they try when you recognize the value
of their
> >>>work with some money (as opposed to just asking nicely).
> >
> >>>Cheers,
> >>>Jean-Michel.
> >
> >>>_______________________________________________
> >>>--Bandwidth and Colocation provided by Easynews.com --
> >
> >>>Asterisk-Users mailing list
> >>>To UNSUBSCRIBE or update options visit:
> >>>  http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> >>_______________________________________________
> >>--Bandwidth and Colocation provided by Easynews.com --
> >
> >>Asterisk-Users mailing list
> >>To UNSUBSCRIBE or update options visit:
> >>   http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> _______________________________________________
> - --Bandwidth and Colocation provided by Easynews.com --
> 
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
> 
> > _______________________________________________
> > --Bandwidth and Colocation provided by Easynews.com --
> 
> > Asterisk-Users mailing list
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.2 (MingW32)
> Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
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> oUViAxPrmV032Y+7pgPYReQ> =Qb7Q
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> _______________________________________________
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> 
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> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users

Jean-Michel Hiver

2006-Jan-26 06:53 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Damon Estep a ?crit :
>TDMoE would allow a T1 like connection only over the local Ethernet segment,
since it is not an IP technology it can not be router across ip networks.
>  
>
You could use OpenVPN to create a virtual tap0 interface over IP, and 
bridge that with your current ethX network.

Cheers,
Jean-Michel.

-- 
Jean-Michel Hiver - http://ykoz.net/
D?couvrez la R?union des Technologies IP & Telecom
TEL: +262 (0)262 55 03 98 - RCS 434 273 330 SAINT PIERRE

Damon Estep

2006-Jan-26 07:00 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Lets put the TDMoE aside for a minute...

The same trunking could be achieved with SIP or IAX, could it not (with higher
latency)?

The rest of the question remains - is there a way to get asterisk to output, bit
for bit, on a t1 interface, the same data that is input on a remote asterisk box
t1 interface - using any trunking protocol.

This is what would be required to truly emulate a "signaling un-aware"
point to point t1 like one that you would get from a telco if you ordered a
point to point esf/b8zs t1 from A location to Z location.

Pure circuit emulation - not ISDN/CAS/E&M signaled voice.

Does that clarify the question at all?


> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> bounces@lists.digium.com] On Behalf Of Jean-Michel Hiver
> Sent: Thursday, January 26, 2006 6:53 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] * point to point t1 solution?
> 
> Damon Estep a ?crit :
> 
> >TDMoE would allow a T1 like connection only over the local Ethernet
> segment, since it is not an IP technology it can not be router across ip
> networks.
> >
> >
> 
> You could use OpenVPN to create a virtual tap0 interface over IP, and
> bridge that with your current ethX network.
> 
> Cheers,
> Jean-Michel.
> 
> --
> Jean-Michel Hiver - http://ykoz.net/
> D?couvrez la R?union des Technologies IP & Telecom
> TEL: +262 (0)262 55 03 98 - RCS 434 273 330 SAINT PIERRE
> 
> 
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
> 
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users

Damon Estep

2006-Jan-26 07:00 UTC

head link

[Asterisk-Users] * point to point t1 solution?

1000pps TDMoE plus vlan tagging, plus l2tp over 10mbps microwave?

I assume you have not tried this before, correct?
> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> bounces@lists.digium.com] On Behalf Of Sean Cook
> Sent: Thursday, January 26, 2006 6:47 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] * point to point t1 solution?
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Ok... lets get into the network setup... what about bridging a vlan
> across your wireless network and sticking both asterisk on the same
> segment?   l2tp... (can a forgo the posting of the google links?)  :)
> 
> 
> 
> Damon Estep wrote:
> > TDMoE would allow a T1 like connection only over the local Ethernet
> segment, since it is not an IP technology it can not be router across ip
> networks.
> >
> > This would be useful to connect 2 asterisk boxes on the same Ethernet
> segment (or with a crossover cable).
> >
> > The advantage would be lower latency than SIP or IAX - the
disadvantage
> being a constant ~1000 packet per second Ethernet flow requires to keep
> the channels up.
> >
> > Won't work...
> >
> >
> >
> >
> >>-----Original Message-----
> >>From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-
> >>bounces@lists.digium.com] On Behalf Of Sean Cook
> >>Sent: Thursday, January 26, 2006 6:36 AM
> >>To: Asterisk Users Mailing List - Non-Commercial Discussion
> >>Subject: Re: [Asterisk-Users] * point to point t1 solution?
> >>
> > http://www.voip-info.org/wiki-Asterisk+TDMoE
> >
> > Damon Estep wrote:
> >
> >>That would not be a nailed up t1 - signaling at both ends would be
via
> >
> > asterisk.
> >
> >>I was trying to determine if there is a way to configure asterisk
to
> >
> > emulate a ptp t1 passively (no signaling) - essentially providing the
> same
> > type of end to end circuit you would get if you ordered a point to
point
> > esf/b8zs t1 from the telco.
> >
> >>I know how to set up asterisk to talk to the Nortel (where the
Nortel
> >
> > thinks asterisk is a telco trunk) - but that is not my goal here.
> >
> >>I want to replace a T1 TIE TRUNK between to Nortel's using
Digium t1
> >
> > interfaces and an IP link between asterisk boxes, but still allow the
> > Nortel to pass signaling directly back and forth.
> >
> >>Still want to take the challenge?
> >
> >
> >
> >
> >>>-----Original Message-----
> >>>From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-
> >>>bounces@lists.digium.com] On Behalf Of Sean Cook
> >>>Sent: Thursday, January 26, 2006 6:12 AM
> >>>To: Asterisk Users Mailing List - Non-Commercial Discussion
> >>>Subject: Re: [Asterisk-Users] * point to point t1 solution?
> >
> >
> >>Damon Estep wrote:
> >
> >
> >>>Jean-Michel,
> >
> >>>I agree with all of your comments, and would be willing to bet
$100
> that
> >
> >>NO AMOUNT OF GOOGLING will answer this question definitively.
> >
> >>I would almost be willing to take that bet... find your exact
> >>configuration is probably not going to happen... however finding
enough
> >>information to piece it together is pretty straight forward...
> >
> >>http://www.tek-tips.com/viewthread.cfm?qid=1082800&page=10
> >
> >>This link tells you that someone else has connected asterisk to a
T1
> >>interface on a Nortel NorthStar.   (first link for asterisk nortel
> >>northstar).
> >
> >>http://www.voip-info.org/wiki-Asterisk+Zaptel+Installation
> >
> >>Whould give you a start as to how to configure the T1 card (zaptel
> >>drivers).
> >
>
>>http://www.voip-info.org/wiki/index.php?page=Asterisk+config+zaptel.conf
> >
> >>Would give you a start to configure the zaptel.conf
> >
> >
> >>http://www.voip-info.org/wiki-IAX
> >
> >>Gives you the skinny (no pun intended) on IAX and working with it
to set
> >>up the trunk...
> >
> >
> >>So it would be logical to assume that if you can connect to the
nortel
> >>and asterisk can talk to asterisk via (iax or sip or anything else)
...
> >>you only need to set up an appropriate dial plan to pass extensions
back
> >>and forth.
> >
> >>In /etc/zaptel.conf:
> >>   span=1,1,0,esf,b8zs
> >>   bchan=1-23
> >>   dchan=24
> >
> >>In /etc/asterisk/zapata.conf:
> >>   switchtype=national
> >>   context=from-pbx2
> >>   signalling=pri_cpe
> >>   group=0
> >>   channel => 1-23
> >
> >
> >>[from-iax-trunk]
> >>; yeah i know this wouldn't be recommended...
> >>exten => _X.,1,Dial(ZAP/g0/${EXTEN},20)
> >
> >>[from-pbx2]
> >>; still not recommended...
> >>exten => _X.,1,Dial(IAX/pbx2/${EXTEN},20)
> >
> >
> >>This is not "Uncharted Territory" this is thinking about
something as a
> >>sum of its parts not as if "No one else has a solution just
like me"
> >
> >
> >
> >>>After reviewing Adrian Carters very informative response
regarding
> TDMoE
> >
> >>I am getting closer to what I need to know (now my googles include
> >>"asterisk" AND "TDMoE").
> >
> >
> >>>This is CLEARLY uncharted territory, while I'll bet it has
been done
> >
> >>before, no one took the time to document it.
> >
> >>No it isn't... I know plenty of people who have connected
legacy systems
> >>to IP.  I am doing it with a Merlin Legend.
> >
> >
> >
> >>>My return to the list if I am successful will be to document
the config
> >
> >>on the wiki... fair exchange?
> >
> >
> >>>And, if along the way I find an EXPERT in this area with REAL
WORLD
> >
> >>PRODUCTION EXPERIENCE I will gladly pay the fees, but I am not
about to
> >>shell out anything to pay some know-it-all to educate themselves
and
> >>provide me a half baked solution that has never been put to the
real
> >
> > world
> >
> >>test.
> >
> >>If you are LOOKING for REAL WORLD, EXACT RepReSenTAtions  (sorry
> >>couldn't resist) of exactly what you have... you are probably
going to
> >>be out of luck.  But consider this:
> >
> >>1.  There is plenty of ducumentation on connecting Legacy Systems
to
> >>Asterisk
> >>2.  There is plenty of documentation on connect two asterisk
systems to
> >>eachother.
> >
> >
> >
> >
> >
> >>>D
> >
> >
> >
> >
> >
> >>>>Damon Estep a ?crit :
> >
> >
> >
> >>>>>Jean-Michel,
> >>>>>
> >>>>>You missed the entire point - the question is IS
ASTERISK CAPABLE OF
> >
> >>>>EMULATING A POINT TO POINT T1 BETWEEN 2 BOXES, AND IF SO
ARE THERE ANY
> >
> >>WEB
> >
> >
> >>>>BASED HINTS I MIGHT LOOK AT?  Not WILL YOU DO IT FOR ME?
> >
> >
> >>>>Yes, I think Asterisk can do what you are trying to
achieve. No, I
> >
> > don't
> >
> >>>>know how to do it, and no I won't do it for you since
I've never been
> >
> > in
> >
> >>>>the situation you're in.
> >
> >>>>As for "web based hints", with some experience
I've found that google
> >
> > is
> >
> >>>>as good as asking the mailing list. If you have no success
with the
> >>>>mailing list, the wiki (voip-info.org) and google, you can
try the irc
> >>>>channel #asterisk on freenode.
> >
> >>>>If that still doesn't work, shelling out a few hundred
bucks for a
> >>>>consultant to help you do it - and train you in the process
- is the
> >>>>other alternative, and is often a good deal.
> >
> >>>>I've done it a couple of times myself, and it's
awesome how far people
> >>>>can get you and how hard they try when you recognize the
value of
> their
> >>>>work with some money (as opposed to just asking nicely).
> >
> >>>>Cheers,
> >>>>Jean-Michel.
> >
> >>>>_______________________________________________
> >>>>--Bandwidth and Colocation provided by Easynews.com --
> >
> >>>>Asterisk-Users mailing list
> >>>>To UNSUBSCRIBE or update options visit:
> >>>> http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> >>>_______________________________________________
> >>>--Bandwidth and Colocation provided by Easynews.com --
> >
> >>>Asterisk-Users mailing list
> >>>To UNSUBSCRIBE or update options visit:
> >>>  http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> > _______________________________________________
> > --Bandwidth and Colocation provided by Easynews.com --
> >
> > Asterisk-Users mailing list
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> >
> >>_______________________________________________
> >>--Bandwidth and Colocation provided by Easynews.com --
> >
> >>Asterisk-Users mailing list
> >>To UNSUBSCRIBE or update options visit:
> >>   http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> _______________________________________________
> - --Bandwidth and Colocation provided by Easynews.com --
> 
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
> 
> > _______________________________________________
> > --Bandwidth and Colocation provided by Easynews.com --
> 
> > Asterisk-Users mailing list
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.2 (MingW32)
> Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
> 
> iD8DBQFD2NLZy9wPyZpnL2URAiuwAKCGCs50iCQIBA+i3ziuMQEPDjREtQCfWo0e
> DhM8Xff+XPLH7wRzu+RkWFY> =DAHC
> -----END PGP SIGNATURE-----
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
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> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users

Jean-Michel Hiver

2006-Jan-26 07:18 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Damon Estep a ?crit :
>Lets put the TDMoE aside for a minute...
>
>The same trunking could be achieved with SIP or IAX, could it not (with
higher latency)?
>
>The rest of the question remains - is there a way to get asterisk to output,
bit for bit, on a t1 interface, the same data that is input on a remote asterisk
box t1 interface - using any trunking protocol.
>
>This is what would be required to truly emulate a "signaling
un-aware" point to point t1 like one that you would get from a telco if you
ordered a point to point esf/b8zs t1 from A location to Z location.
>
>Pure circuit emulation - not ISDN/CAS/E&M signaled voice.
>  
>You might want to take a look at rad.com array of products. They sell 
small boxes which cost around ?3k each and which can do exactly what you 
are looking after, which they call TDMoIP. Of course, this is getter 
further away from Asterisk :(

Cheers,
Jean-Michel.

-- 
Jean-Michel Hiver - http://ykoz.net/
D?couvrez la R?union des Technologies IP & Telecom
TEL: +262 (0)262 55 03 98 - RCS 434 273 330 SAINT PIERRE

Patrick Conroy

2006-Jan-26 07:22 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Damon,

Unless I misunderstand what you are looking for, a P2P T1 would be handled
by the kernel, not by asterisk.  If you want to use digium cards, you would
still need zaptel, or you could  use a sangoma card on each end and their
wanrouter drivers. Asterisk would obviously be involved in the SIP or IAX
connection to pass calls, but not with the P2P T1.  This page may help:

http://voip-info.org/wiki/view/Asterisk+Data+Configuration

This is based on a T1 using Cisco HDLC, but I have done the same thing with
PPP.

Hope that helps,
Patrick


On 1/26/06, Damon Estep <damon@suburbanbroadband.net>
wrote:>
> Lets put the TDMoE aside for a minute...
>
> The same trunking could be achieved with SIP or IAX, could it not (with
> higher latency)?
>
> The rest of the question remains - is there a way to get asterisk to
> output, bit for bit, on a t1 interface, the same data that is input on a
> remote asterisk box t1 interface - using any trunking protocol.
>
> This is what would be required to truly emulate a "signaling
un-aware"
> point to point t1 like one that you would get from a telco if you ordered a
> point to point esf/b8zs t1 from A location to Z location.
>
> Pure circuit emulation - not ISDN/CAS/E&M signaled voice.
>
> Does that clarify the question at all?
>
>
>
> > -----Original Message-----
> > From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> > bounces@lists.digium.com] On Behalf Of Jean-Michel Hiver
> > Sent: Thursday, January 26, 2006 6:53 AM
> > To: Asterisk Users Mailing List - Non-Commercial Discussion
> > Subject: Re: [Asterisk-Users] * point to point t1 solution?
> >
> > Damon Estep a ?crit :
> >
> > >TDMoE would allow a T1 like connection only over the local
Ethernet
> > segment, since it is not an IP technology it can not be router across
ip
> > networks.
> > >
> > >
> >
> > You could use OpenVPN to create a virtual tap0 interface over IP, and
> > bridge that with your current ethX network.
> >
> > Cheers,
> > Jean-Michel.
> >
> > --
> > Jean-Michel Hiver - http://ykoz.net/
> > D?couvrez la R?union des Technologies IP & Telecom
> > TEL: +262 (0)262 55 03 98 - RCS 434 273 330 SAINT PIERRE
> >
> >
> > _______________________________________________
> > --Bandwidth and Colocation provided by Easynews.com --
> >
> > Asterisk-Users mailing list
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>-------------- next part --------------
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Damon Estep

2006-Jan-26 07:48 UTC

head link

[Asterisk-Users] * point to point t1 solution?

saw those, according to RAD they occupy 2mbps even when idle. about $750/each
for t1

________________________________

From: asterisk-users-bounces@lists.digium.com on behalf of Jean-Michel Hiver
Sent: Thu 1/26/2006 7:18 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] * point to point t1 solution?



Damon Estep a ?crit :
>Lets put the TDMoE aside for a minute...
>
>The same trunking could be achieved with SIP or IAX, could it not (with
higher latency)?
>
>The rest of the question remains - is there a way to get asterisk to output,
bit for bit, on a t1 interface, the same data that is input on a remote asterisk
box t1 interface - using any trunking protocol.
>
>This is what would be required to truly emulate a "signaling
un-aware" point to point t1 like one that you would get from a telco if you
ordered a point to point esf/b8zs t1 from A location to Z location.
>
>Pure circuit emulation - not ISDN/CAS/E&M signaled voice.
> 
>You might want to take a look at rad.com array of products. They sell
small boxes which cost around EUR3k each and which can do exactly what you
are looking after, which they call TDMoIP. Of course, this is getter
further away from Asterisk :(

Cheers,
Jean-Michel.

--
Jean-Michel Hiver - http://ykoz.net/
D?couvrez la R?union des Technologies IP & Telecom
TEL: +262 (0)262 55 03 98 - RCS 434 273 330 SAINT PIERRE


_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --

Asterisk-Users mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users


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Matt Riddell (IT)

2006-Jan-26 07:49 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Damon Estep wrote:> I agree with all of your comments, and would be willing to bet $100 that NO
AMOUNT OF GOOGLING will answer this question definitively.
Um, if you google for pri_net pri_cpi and Asterisk, then I bet it will
return a response to your liking.

-- 
Cheers,

Matt Riddell
_______________________________________________

http://www.sineapps.com/news.php (Daily Asterisk News - html)
http://freevoip.gedameurope.com (Free Asterisk Voip Community)
http://www.sineapps.com/rssfeed.php (Daily Asterisk News - rss)

Bill Michaelson

2006-Jan-26 08:08 UTC

head link

[Asterisk-Users] * point to point t1 solution?

You've clarified your requirements for me.  Please indulge me - I really 
want to understand - what are the application implications of this?  In 
other words, what system behavioral changes will your users experience 
in the various scenarios (pure circuit emulation vs. relay via IAX or 
similar)?

Date: Thu, 26 Jan 2006 07:00:02 -0700
From: "Damon Estep" <damon@suburbanbroadband.net>
Subject: RE: [Asterisk-Users] * point to point t1 solution?
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
	<asterisk-users@lists.digium.com>
Message-ID:
	<07668904BA88BA4E9DA11CDE5B594CB20144E0BE@ns1.soho.soho-systems.com>
Content-Type: text/plain;	charset="iso-8859-1"

Lets put the TDMoE aside for a minute...

The same trunking could be achieved with SIP or IAX, could it not (with higher
latency)?

The rest of the question remains - is there a way to get asterisk to output, bit
for bit, on a t1 interface, the same data that is input on a remote asterisk box
t1 interface - using any trunking protocol.

This is what would be required to truly emulate a "signaling un-aware"
point to point t1 like one that you would get from a telco if you ordered a
point to point esf/b8zs t1 from A location to Z location.

Pure circuit emulation - not ISDN/CAS/E&M signaled voice.

Does that clarify the question at all?

Damon Estep

2006-Jan-26 08:38 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Thanks Matt,
 
PRI signalling means that calls and answered and dialed (aka signalled) by
asterisk, the goal is to maintain the signalling between the two nortel boxes.
 
I have gathered that raw point to point circuit emulation is not possible on
asterisk...
 
I am aware of how to connect a PBX to asterisk using ISDN PRI signalling.

________________________________

From: asterisk-users-bounces@lists.digium.com on behalf of Matt Riddell (IT)
Sent: Thu 1/26/2006 7:49 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] * point to point t1 solution?



Damon Estep wrote:> I agree with all of your comments, and would be willing to bet $100 that NO
AMOUNT OF GOOGLING will answer this question definitively.
Um, if you google for pri_net pri_cpi and Asterisk, then I bet it will
return a response to your liking.

--
Cheers,

Matt Riddell
_______________________________________________

http://www.sineapps.com/news.php (Daily Asterisk News - html)
http://freevoip.gedameurope.com (Free Asterisk Voip Community)
http://www.sineapps.com/rssfeed.php (Daily Asterisk News - rss)
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --

Asterisk-Users mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users


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Damon Estep

2006-Jan-26 08:52 UTC

head link

[Asterisk-Users] * point to point t1 solution?

gladly,
 
circuit emulation will;
 
1. eliminate the need to reconfigure the exisitng hardware.
2. improve the chances that fax and analog modem devices will still work.
3. NOT change any dialing patterns or extensons numbering.
 
there are other, but they are less significant
 

________________________________

From: asterisk-users-bounces@lists.digium.com on behalf of Bill Michaelson
Sent: Thu 1/26/2006 8:08 AM
To: asterisk-users@lists.digium.com
Subject: Re: [Asterisk-Users] * point to point t1 solution?



You've clarified your requirements for me.  Please indulge me - I really
want to understand - what are the application implications of this?  In
other words, what system behavioral changes will your users experience
in the various scenarios (pure circuit emulation vs. relay via IAX or
similar)?


Date: Thu, 26 Jan 2006 07:00:02 -0700
From: "Damon Estep" <damon@suburbanbroadband.net>
Subject: RE: [Asterisk-Users] * point to point t1 solution?
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
        <asterisk-users@lists.digium.com>
Message-ID:
       
<07668904BA88BA4E9DA11CDE5B594CB20144E0BE@ns1.soho.soho-systems.com>
Content-Type: text/plain;       charset="iso-8859-1"

Lets put the TDMoE aside for a minute...

The same trunking could be achieved with SIP or IAX, could it not (with higher
latency)?

The rest of the question remains - is there a way to get asterisk to output, bit
for bit, on a t1 interface, the same data that is input on a remote asterisk box
t1 interface - using any trunking protocol.

This is what would be required to truly emulate a "signaling un-aware"
point to point t1 like one that you would get from a telco if you ordered a
point to point esf/b8zs t1 from A location to Z location.

Pure circuit emulation - not ISDN/CAS/E&M signaled voice.

Does that clarify the question at all?



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Matt Riddell (IT)

2006-Jan-26 09:02 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Damon Estep wrote:> saw those, according to RAD they occupy 2mbps even when idle. about
$750/each for t1
Are you basically looking to make a T1 repeater?

Or is there simply something that is removed from the signalling by
Asterisk that you want to maintain?

-- 
Cheers,

Matt Riddell
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Don Pobanz

2006-Jan-26 10:14 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Damon Estep wrote:> Thanks Matt,
>  
> PRI signalling means that calls and answered and dialed (aka signalled) by
asterisk, the goal is to maintain the signalling between the two nortel boxes.
>  
> I have gathered that raw point to point circuit emulation is not possible
on asterisk...
>  
To connect the channels of the T1 straight through would be by using a 
Digital Access Cross Connect system (DACS in proprietary AT&T lingo). I 
believe there is this capability in zaptel, though this does not seem 
like the best option. As mentioned before, the ISDN PRI signaling seems 
like a much better solution.
> I am aware of how to connect a PBX to asterisk using ISDN PRI signalling.
>

Zac Amsler

2006-Jan-26 20:45 UTC

head link

[Asterisk-Users] * point to point t1 solution?

Damon,

I have not done TDMoE, but I do know that in the wireless world....

If I wanted to move T1s over a wireless link, I would look at Western 
Multiplex.
Just off the top of my head.. I have seen the 10 + 2T perform this function.
This was a few years, ago, so I am sure that there is some newer MUX 
gear that can move the Ts.

Cheers,

/Zac

Damon Estep wrote:> 1000pps TDMoE plus vlan tagging, plus l2tp over 10mbps microwave?
>
> I assume you have not tried this before, correct?
>

Damon Estep

2006-Jan-27 13:56 UTC

head link

[Asterisk-Users] * point to point t1 solution?

> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> bounces@lists.digium.com] On Behalf Of Andrew Kohlsmith
> Sent: Friday, January 27, 2006 1:19 PM
> To: asterisk-users@lists.digium.com
> Subject: Re: [Asterisk-Users] * point to point t1 solution?
> 
> On Thursday 26 January 2006 09:00, Damon Estep wrote:
> > The same trunking could be achieved with SIP or IAX, could it not
(with> > higher latency)?
> 
> What signaling are you running on this ptp T1?  If it's MCDN (NAPN)
then> forget it; Asterisk doesn't understand the signaling.  It's
actually a
> side
> project of mine to bring that to Asterisk.  :-)
> 
> > This is what would be required to truly emulate a "signaling
un-aware"> > point to point t1 like one that you would get from a telco if you
> ordered a
> > point to point esf/b8zs t1 from A location to Z location.
> 
> Not possible unless you want to transmit the entire T1 contents
(signaling> and
> channels, inuse or not) continuously.  c.f. "TDMOE"  :-)
> 
> -A.

that was the goal - a end to end TDMoE path terminated at both ends at
the t1 ports on the Digium card - aware of the idle bandwidth
requirements (about 2.0mbps including packet overhead).

I have not seen any information that says that it is possible to nail a
t1 port to a TDMoE channel group on one end and vice versa so the
signaling could be passed unmodified.

You have to decode the signaling, pass the media, and reproduce the
signaling via asterisk at the remote end, correct? This means that id
the signaling IS non-standard it is a no go.

If it could be done, signaling matters none - the two connected devices
would still understand each others foreign language (signaling) and the
asterisk boxes would just provide a pure Nx64 data path.

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