[cisco-voip] Setting up 2610 as a SIP gateway to PBX

[Mark Holloway]

Do you have a DSP module for the B channels to the Mitel? You would need
something like an AIM-VOICE-30. The information below should help you get
started with a config.. It will need to be optimized for your needs.  .  
   

controller T1 0/2/0
 clock source internal
 pri-group timeslots 1-24
 description TO MITEL-PRI

interface Serial0/2/0:23
 description TO MITEL-PRI
 no ip address
 encapsulation hdlc
 isdn switch-type primary-ni
 isdn protocol-emulate network
 isdn incoming-voice modem
 no cdp enable

dial-peer voice 100 pots
 destination-pattern .T  
 direct-inward-dial
 port 0/2/0:23
 no sip-register

dial-peer voice 200 voip
 translation-profile outgoing <name> <--- Only if you need to translate 
 destination-pattern .... 
 voice-class codec 1
 session protocol sipv2
 session target sip-server
 dtmf-relay rtp-nte
 no vad

sip-ua 
sip-server <dns or ip of asterisk server>
<any sip/isdn cause code mappings you might want to add>

voice class codec 1
  codec preference 1 g711ulaw
  codec preference 2 g729r8

 



-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of x25 at pobox.com
Sent: Thursday, January 29, 2009 12:52 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Setting up 2610 as a SIP gateway to PBX

I've been given a task which I am not familiar with, so I need some help.

Basically, the idea is to connect 2610 router with a PBX, over T1 PRI, and
then allow other devices 
(Asterisk, for example - or even an ordinary SIP softphone) to make calls
through PBX via Cisco gateway.

Something like this:


Asterisk ----- SIP -----> 2610 -----> T1 PRI -----> Mitel 3300 PBX


I have configured 2610 and brought T1 link up. Hoever, I am bit lost as to
how I need to configure router in 
order to allow SIP clients talk to PBX. SIP is IP based protocol, so I
presume 2610 will do some voodoo 
conversion before sending it to PBX. I do have username/password for PBX,
just need to find a way to register 
a SIP client over this link (can't talk SIP directly to 3300).

So, I have controller and serial interface setup:

isdn switch-type primary-dms100

controller T1 1/0
 framing esf
 clock source line primary
 linecode b8zs
 cablelength short 133
 pri-group timeslots 1-24
 description Link to Mitel 3300

interface Serial1/0:23
 no ip address
 encapsulation hdlc
 isdn switch-type primary-dms100
 isdn incoming-voice voice
 no cdp enable

And at this point, I am bit lost. After trying to read lots of
documentation, I've reached the "information 
overload" phase, where I am more confused than before, so I need help :)

I assume that I also need dial-peer defined, like this (this was just for
testing)

dial-peer voice 1023 pots
 destination-pattern .T
 port 1/0:23
 forward-digits all

Could anyone just explain basic steps (and which features are needed) in
order to make this work?

I tried adding random things to configuration (sip-ua enabled, then enabling
voice service voip, etc), but 
the main problem is that I don't understand what I need exactly, so any help
is welcome :)

Thanks.
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