[Asterisk-Users] PRI concentrator

[Matthew Crocker]

> Here is what I am looking for: picture a cisco catalyst switch. (or any
> 24port rackmount switch thats 1U).
> Plug into ports 1-23, a single PRI.
> Plug a 100Megabit (or gigabit) ethernet cable into Port 24 that goes
> directly to asterisk.
>
> Now you have 1 cable to/from asterisk that can handle all 23 pri's. 
> kinda
> like a channel bank for FX but for PRI.

Yes,  it is called a Lucent MAX TNT or Cisco AS 5400 with DS-3 input 
(28 T1s, 28 PRIs) and Fast E output.  They both support SIP and MGCP 
which works well with Asterisk
If you really want RJ-45 connections for your PRIs (ick) then you can 
connect the DS-3 into a CAC Widebank 28 and DSX1 panel with RJ48 
connectors.  The problem with fitting 28 T1s into 1RU is the DSPs and 
the heat they generate.  24 * 28 = 672 g.729 streams,  that takes a LOT 
of horsepower.  Lucent & Cisco do it on hardware DSPs,  Lucent has 96 
DSPs on a card 7 cards for a DS-3 + DS-3 card + FastE card + 
controller.  The MAX TNT is 7RU I think


> got anything like that?
>
> -Matthew
>
> ----- Original Message -----
> From: "W. Kevin Hunt" <Kevin at hbcorporate.com>
> To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> <asterisk-users at lists.digium.com>
> Sent: Friday, January 14, 2005 7:12 AM
> Subject: RE: [Asterisk-Users] PRI concentrator
>
>
> Adtran Atlas 800+ w/ PRI cards
> wonderfull box w/ a fairly powerfull dialplan
>
> W. Kevin Hunt
>
> CCIE #11841
> MCSE, Linux+ SME
> www.huntbrothers.com
>
>
>> -----Original Message-----
>> From: asterisk-users-bounces at lists.digium.com
>> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of
>> Matthew Boehm
>> Sent: Thursday, January 13, 2005 2:24 PM
>> To: asterisk-users at lists.digium.com
>> Subject: [Asterisk-Users] PRI concentrator
>>
>> Hey gang,
>>  We currently have a class 3 switch (CSX) that..well..it
>> sucks. It does terrible CDR writes, doesn't support LCR, the
>> list goes on and on. We want to replace this with several
>> asterisk boxes each running one or two 4 port PRI cards.
>>  The problem is: I can plug in 20 PRI lines into the CSX
>> (from PSTN) and have 1 come from CSX into asterisk. If 1 call
>> comes in on each of the 20 pris, the CSX concentrates them
>> into 1 pri into asterisk. Thus I only need a single PRI card
>> for asterisk box.
>>
>>  If I want to completly replace the CSX, I would need several
>> boxes with 1 or 2 4 port cards. But that is a big waste of
>> money when I can concentrate into less cables.
>>
>>  Does anyone know of some piece of hardware (other than a
>> carrier switch) that will do the same thing? Keeping our
>> current switch doesn't cost anything except in terms of power
>> consumption and physical space (its like 5U or 8U).
>>
>> Thanks,
>> Matthew
>>
>> _______________________________________________
>> Asterisk-Users mailing list
>> Asterisk-Users at 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
>>
>>
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at 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
>
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at 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
>