asterisk users - Nov 2006 - In the beginning-The first question.

List,
Im a Cisco certified Network guy with little telecom experience (BRI/PRI
at the time) so please forgive my terminology. I am showing interest
after the Network World SHSU October 4 article. We have 3 offices
(Hub-Spoke T1 Frame relay to the remote offices(Data & voice on separate
T)). Each office currently does their own thing for telecom. Our
Main(HUB) office currently has 14 channels of T1 into an ADIT 600
punched down to the DEMARC. Our Panasonic (72 port) VB-43050 DBS picks
up from the DEMARC and spits out 4 lines for our VM server. My goal is
described below, the question is how to make Asterisk do it.

Consolidate telecom services of the other two offices into our HUB
office. Try (Hard) to keep some of the current phones
(Panasonic-Digital_ Not a high priority). 

The Adit 600 is property of our Provider so currently we would have to
take it from the other side. OR Should the T1 go straight into the
Asterisk server?

My Ideal:

A full 24 channel T1 into an Asterisk server on its own VLAN routed to
the remote offices over a separate PVC than the data. The remote offices
would A) use SIP phones B) terminate somewhere allowing them to use the
current phones.
The smallest office has 19 stations. The largest has 25.
We must have overhead paging
Each office is satisfied having 7 concurrent calls MAX.

Have we enough info to ask:
1) 1 server or several?
2) Channel bank or not?
3) Type of card for the server?
4) Am I having delusions of grandeur?

We can talk with anyone off list or On giving much more details of our
project thoughts. Surely someone (Many of you) are in the same boat.
This message if the first in an attempt to gather information to
document my 'Proof of Concept' to the powers that be.

Thanks everyone for your reply's


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James R. Stevens wrote:
>
> Have we enough info to ask:
> 1) 1 server or several?
>   
1 for each location, if the T1 goes down, they still will have a phone 
system.  Each Asterisk system can trunk to each other via IAX.
> 2) Channel bank or not?
>   
If you want to supply dial tone (Modems/Faxes/etc) you'll need a channel 
bank.
> 3) Type of card for the server?
>   
Either Digim or Sangoma Dual T1 card.  Depending on your budget, you may 
want to look into their hardware base echo cancellers
> 4) Am I having delusions of grandeur?
>   
No, this is very doable.

Doug



-- 
 
Ben Franklin quote:

"Those who would give up Essential Liberty to purchase a little Temporary
Safety, deserve neither Liberty nor Safety."

When you say DUAL T1 card from Digiim. Are you thinking One T for voice
coming in the other T going to the remote office(s)?
Why Dual T1 card? 

-----Original Message-----
From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Doug Lytle
Sent: Tuesday, November 14, 2006 2:59 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] In the beginning-The first question.

James R. Stevens wrote:
>
> Have we enough info to ask:
> 1) 1 server or several?
>   
1 for each location, if the T1 goes down, they still will have a phone
system.  Each Asterisk system can trunk to each other via IAX.
> 2) Channel bank or not?
>   
If you want to supply dial tone (Modems/Faxes/etc) you'll need a channel
bank.
> 3) Type of card for the server?
>   
Either Digim or Sangoma Dual T1 card.  Depending on your budget, you may
want to look into their hardware base echo cancellers
> 4) Am I having delusions of grandeur?
>   
No, this is very doable.

Doug



-- 
 
Ben Franklin quote:

"Those who would give up Essential Liberty to purchase a little
Temporary Safety, deserve neither Liberty nor Safety."

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This message has been scanned for viruses and
dangerous content by Athens Hyperion Scanner, and is
believed to be clean.

James R. Stevens wrote:
> When you say DUAL T1 card from Digiim. Are you thinking One T for voice
> coming in the other T going to the remote office(s)?
> Why Dual T1 card? 
>
>   
1 for the direct link to the PSTN and the other to the Adit

Doug


-- Ben Franklin quote: "Those who would give up Essential Liberty to 
purchase a little Temporary Safety, deserve neither Liberty nor Safety."

> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com 
> [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of 
> James R. Stevens
> Sent: 14 November 2006 20:36
> To: asterisk-users@lists.digium.com
> Subject: [asterisk-users] In the beginning-The first question.
> 
> List,
> Im a Cisco certified Network guy with little telecom 
> experience (BRI/PRI at the time) so please forgive my 
> terminology. I am showing interest after the Network World 
> SHSU October 4 article. We have 3 offices (Hub-Spoke T1 Frame 
> relay to the remote offices(Data & voice on separate T)). 
> Each office currently does their own thing for telecom. Our
> Main(HUB) office currently has 14 channels of T1 into an ADIT 
> 600 punched down to the DEMARC. Our Panasonic (72 port) 
> VB-43050 DBS picks up from the DEMARC and spits out 4 lines 
> for our VM server. My goal is described below, the question 
> is how to make Asterisk do it.
> 
> Consolidate telecom services of the other two offices into 
> our HUB office. Try (Hard) to keep some of the current phones 
> (Panasonic-Digital_ Not a high priority). 
You could use a Citel SIP Handset Gateway (http://www.citel.com) to keep
the Panasonic DBS phones. This unit converts their proprietary
signalling to SIP.

Disclaimer: I work for Citel.