I'm staring at an RFP--this company wants to replace a 2000 position PBX (at eight locations) with a new system. Their mindset is Nortel/Avaya because they talk about 28-button digital sets. The do specify a few IP phones for just one location, so they are aware of VoIP. I'm going to bid on this--there's nothing to lose except the time it takes to write the proposal. I'll bid an off site Asterisk system with SIP telephones. Using the metric of 100 SIP phones/box, I'll bid twenty Asterisk boxes with ten boxes at each of two hosting locations. Each phone will have registrations to both sites. The big unknown is wiring. I'm going to assume the worst, that the existing LAN is overloaded. I would a) have to make LAN wiring out of existing Cat3 wiring, or b) install a new voice-only LAN. Does anyone know how to qualify existing Cat3 wiring for use as a LAN? Has anyone does an Asterisk system on this scale? Thanks for your help, Mike P.S. Sorry for the cross post, but I would like everyone to see this.
On Thu, 24 Mar 2005 16:42:24 -0700, Michael Welter <mike@introspect.com> wrote:> I'm staring at an RFP--this company wants to replace a 2000 position PBX > (at eight locations) with a new system. Their mindset is Nortel/Avaya > because they talk about 28-button digital sets. The do specify a few IP > phones for just one location, so they are aware of VoIP. > > I'm going to bid on this--there's nothing to lose except the time it > takes to write the proposal. I'll bid an off site Asterisk system with > SIP telephones. Using the metric of 100 SIP phones/box, I'll bid twenty > Asterisk boxes with ten boxes at each of two hosting locations. Each > phone will have registrations to both sites. > > The big unknown is wiring. I'm going to assume the worst, that the > existing LAN is overloaded. I would a) have to make LAN wiring out of > existing Cat3 wiring, or b) install a new voice-only LAN. > > Does anyone know how to qualify existing Cat3 wiring for use as a LAN? > > Has anyone does an Asterisk system on this scale? > > Thanks for your help, > Mike > > P.S. Sorry for the cross post, but I would like everyone to see this. >Qualify your cable: http://www.action-electronics.com/bbrwc.htm> _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >-- James Taylor MetroTel 3505 Summerihll Road Suite 11 Texarkana, Texas 75503 903-793-1956
asterisk-users-bounces@lists.digium.com wrote on 03/24/2005 06:42:24 PM:> Does anyone know how to qualify existing Cat3 wiring for use as a LAN?That's easy: Cat3 is able to handle 10Mbit. So if the wire truly is Cat3, you can use 10Mbit switches and be in good shape. Now, how do you know if the wiring is truly Cat3? Just because the raw wire is Cat3 means nothing if they wrapped it around a few fluroescent lights... ;) Your best bet would be to certify the wiring. A used scanner you bought on eBay would be fine: there are plenty of Cat5 scanners around that people are replacing with Cat6 scanners. I like the old Pentascanners (used to be Microtest, now owned by Fluke). They will also certify for Cat 3. The problem is, most phone wire is: A) Terminated into 66 blocks, B) Not ran with data requirements in mind, and C) Often terminated as two lines per wire. For A, you have to re-terminate all of the lines, for B, you may have to re-run some (or even most) of the lines because of quality or length issues, and for C you may have to run fully half of the lines again because they may want two jacks in an office like there is now, but there's only one wire going to that office. You could use those mini-switch-in-a-jack thingies, but they are usually more expensive than it would cost to run more wire! :) In short, unless the phone wire is just a few years old at the *oldest*, assume the worst: the wire will not work out for you. That, by the way, is why *all* wiring I have done for my clients is all done Cat5 (or higher) into patch panels. I then use a patch panel wired to a 66 or (usually a) 110 block for connection to the phone system and plug into it like you would an Ethernet hub. That way, when they are ready for VoIP (or just want to use a data jack for phone or vice-versa), it is idiot simple. Tim Massey
We sell an Asterisk based soft switch that starts at 5000 simultaneous connections and goes up from there. paul pmahler@signate.com I'm staring at an RFP--this company wants to replace a 2000 position PBX (at eight locations) with a new system. Their mindset is Nortel/Avaya because they talk about 28-button digital sets. The do specify a few IP phones for just one location, so they are aware of VoIP. I'm going to bid on this--there's nothing to lose except the time it takes to write the proposal. I'll bid an off site Asterisk system with SIP telephones. Using the metric of 100 SIP phones/box, I'll bid twenty Asterisk boxes with ten boxes at each of two hosting locations. Each phone will have registrations to both sites. The big unknown is wiring. I'm going to assume the worst, that the existing LAN is overloaded. I would a) have to make LAN wiring out of existing Cat3 wiring, or b) install a new voice-only LAN. Does anyone know how to qualify existing Cat3 wiring for use as a LAN? Has anyone does an Asterisk system on this scale? Thanks for your help, Mike P.S. Sorry for the cross post, but I would like everyone to see this. _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.8.1 - Release Date: 3/23/2005 Paul Mahler www.signate.com
cat3 will do 10bt, YMMV based on the install job and length of the runs, but for qaulifying the lines there is a simple one word answer, pentascanner. I've got one, if the job is in the sf bay area you can rent me for a day. -Ryan Michael Welter wrote:> I'm staring at an RFP--this company wants to replace a 2000 position PBX > (at eight locations) with a new system. Their mindset is Nortel/Avaya > because they talk about 28-button digital sets. The do specify a few IP > phones for just one location, so they are aware of VoIP. > > I'm going to bid on this--there's nothing to lose except the time it > takes to write the proposal. I'll bid an off site Asterisk system with > SIP telephones. Using the metric of 100 SIP phones/box, I'll bid twenty > Asterisk boxes with ten boxes at each of two hosting locations. Each > phone will have registrations to both sites. > > The big unknown is wiring. I'm going to assume the worst, that the > existing LAN is overloaded. I would a) have to make LAN wiring out of > existing Cat3 wiring, or b) install a new voice-only LAN. > > Does anyone know how to qualify existing Cat3 wiring for use as a LAN? > > Has anyone does an Asterisk system on this scale? > > Thanks for your help, > Mike > > P.S. Sorry for the cross post, but I would like everyone to see this. > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users
> I'm staring at an RFP--this company wants to replace a 2000 position PBX > (at eight locations) with a new system. Their mindset is Nortel/Avaya > because they talk about 28-button digital sets. The do specify a few IP > phones for just one location, so they are aware of VoIP. > > I'm going to bid on this--there's nothing to lose except the time it > takes to write the proposal. I'll bid an off site Asterisk system withWhen bidding on this also explain to them the benefit of running copletely sip, and the flexibility with this (voip providers and the like). I would realy love to hear a success story based on running Asterisk in such an environment.> SIP telephones. Using the metric of 100 SIP phones/box, I'll bid twenty > Asterisk boxes with ten boxes at each of two hosting locations. Each > phone will have registrations to both sites.I disagree on this one, I think you can safely do 250 phones to a box, which will allow you to have just 8 boxes (of course don't use Pentium 3 from eBay, use at least dual Xeon), if you will not be using zap on every box (which you shouldn't), or if you will be using external channel banks to transcod from tdm/pots to voip, then you can safely do upto 500 to a box. Then use just one or 2 boxes to do the Zap channles and transcoding from DTM/POTS to voip. Take a look on the wiki (don't remember the URL now, and lazy to google).> The big unknown is wiring. I'm going to assume the worst, that the > existing LAN is overloaded. I would a) have to make LAN wiring out of > existing Cat3 wiring, or b) install a new voice-only LAN.Don't know much what to tell you, but what the others said sounds about right.> Does anyone know how to qualify existing Cat3 wiring for use as a LAN? > > Has anyone does an Asterisk system on this scale?I'm in the process of writing a proposal, for a 500 phone system (not on *this* scale, but in a higher than avarage scale). If you want you can contact me off list (I would actualy appricate it, we can work out lots of the details together).> Thanks for your help, > Mike > > P.S. Sorry for the cross post, but I would like everyone to see this. > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
Hi, I would like to know if Asterisk (installed on Linux or Free BSD) have any possibility of high availability (such as, if one box down, the other one get all configuration)? If yes: 1 - how can I do that? 2 - Who is using that? 3 - How long is using? 4 - How Many SIP phones is using on that Asterisk? Thanks in advanced, Otto
> Hi, > > I would like to know if Asterisk (installed on Linux or Free BSD) have any > possibility of high availability (such as, if one box down, the other one > get all configuration)?F5 networks currently makes a layer-7 SIP aware load balancer. I was on a call with them on Friday and their lowest end model was $21,000 for a 500Mbit throughput switch. Or, you can get a 3rd box and put SER on it to load balance/failover any number of asterisk boxes. Cheap and easy. Problem is, what happens when that SER box gets overloaded? If it does, then you are pushing 10,000 calls per second. And if you are pushing 10,000 calls per second then you can afford the $21K switch above. -Matthew
Matthew Boehm wrote:>>Hi, >> >>I would like to know if Asterisk (installed on Linux or Free BSD) have any >>possibility of high availability (such as, if one box down, the other one >>get all configuration)? >> >> > > F5 networks currently makes a layer-7 SIP aware load balancer. I was on >a call with them on Friday and their lowest end model was $21,000 for a >500Mbit throughput switch. > > Or, you can get a 3rd box and put SER on it to load balance/failover any >number of asterisk boxes. Cheap and easy. Problem is, what happens when that >SER box gets overloaded? If it does, then you are pushing 10,000 calls per >second. And if you are pushing 10,000 calls per second then you can afford >the $21K switch above. > >-Matthew > > >To put things in perspective, a top of the line multiprocessing DMS Switch from Nortel Networks, costs millions of dollars. Call Processing Capacities of TDM switches are rated in BHCAs (busy hour call attempts). A TDM switch like this can do 7 million BHCAs, which translated into seconds is less that 2,000 calls per second. 10,000 calls per second is one hell of a lot of calls. I am sure that not even Vonage with its half a million subs is doing 10,000 calls per second on their entire network. If they did then they would be processing 36 million calls an hour. -- Andres
this http://www.xgforce.com/loadbalancer.html might help too at cheaper price. Matt ----- Original Message ----- From: "Andres" <andres@telesip.net> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users@lists.digium.com> Sent: Sunday, March 27, 2005 10:37 PM Subject: Re: [Asterisk-Users] High Availability on Asterisk> > > Matthew Boehm wrote: > > >>Hi, > >> > >>I would like to know if Asterisk (installed on Linux or Free BSD) haveany> >>possibility of high availability (such as, if one box down, the otherone> >>get all configuration)? > >> > >> > > > > F5 networks currently makes a layer-7 SIP aware load balancer. I wason> >a call with them on Friday and their lowest end model was $21,000 for a > >500Mbit throughput switch. > > > > Or, you can get a 3rd box and put SER on it to load balance/failoverany> >number of asterisk boxes. Cheap and easy. Problem is, what happens whenthat> >SER box gets overloaded? If it does, then you are pushing 10,000 callsper> >second. And if you are pushing 10,000 calls per second then you canafford> >the $21K switch above. > > > >-Matthew > > > > > > > To put things in perspective, a top of the line multiprocessing DMS > Switch from Nortel Networks, costs millions of dollars. Call > Processing Capacities of TDM switches are rated in BHCAs (busy hour call > attempts). A TDM switch like this can do 7 million BHCAs, which > translated into seconds is less that 2,000 calls per second. 10,000 > calls per second is one hell of a lot of calls. I am sure that not even > Vonage with its half a million subs is doing 10,000 calls per second on > their entire network. If they did then they would be processing 36 > million calls an hour. > > -- > Andres > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >