[nsp] PRI using a Nortel QPC757 DCHI and Cisco NM-HDV/VWIC-1MFT-T1

[Voll, Scott]

My suggestion would be to go to H323.  We have been running into
problems with the call progress in MGCP.  TAC said that CM only supports
ISO ver 3 (2000).  Where as the IOS (H3233) supports ECMA, and ISO and
different ver. Of each.  Has fixed our problems.  And really the only
bad thing about H323 is the long config.

Scott

-----Original Message-----
From: Terry Grace [mailto:tgrace at tgrace.com] 
Sent: Friday, September 19, 2003 8:17 AM
To: Voll, Scott; cisco-nsp at puck.nether.net; cisco-voip at puck.nether.net
Subject: RE: [nsp] PRI using a Nortel QPC757 DCHI and Cisco
NM-HDV/VWIC-1MFT-T1

We're using mgcp. Don't have the qsig package on the PBX.

-----Original Message-----
From: Voll, Scott [mailto:Scott.Voll at wesd.org] 
Sent: Friday, September 19, 2003 11:10 AM
To: tgrace; cisco-nsp at puck.nether.net; cisco-voip at puck.nether.net
Subject: RE: [nsp] PRI using a Nortel QPC757 DCHI and Cisco
NM-HDV/VWIC-1MFT-T1


What are you running, H323,SIP,MGCP??  Can you use Qsig?  

--Scott

-----Original Message-----
From: tgrace [mailto:tgrace at tgrace.com] 
Sent: Thursday, September 18, 2003 7:51 PM
To: cisco-nsp at puck.nether.net; cisco-voip at puck.nether.net
Subject: [nsp] PRI using a Nortel QPC757 DCHI and Cisco
NM-HDV/VWIC-1MFT-T1

I'm having difficulty keepinga PRI TIE line up between our 81C and a
Cisco
2621XM router. The PRI seems to go down shortly after a disconnect from
the
first incoming call to the router from the PBX or PSTN or after a dozen
quick succession calls to PBX extensions. When this happens I can see
the
router TX'ing SABME's but getting no response from the PBX. At other
times
the link will be up but I will get an INFO message back from the PBX
that
the "identified channel does not exist" when I try to place an outbound
call. There also seems to be some issue with disconnects with 5ESS. On a
number of occassions my Nortel phone continued ringing after going
onhook on
the Cisco phone. This isn't consistent and happens perhaps 1 out 10
calls.

Initially tried using the DMS100 protocol with the PBX as net and the
router
as USR. Also did the reverse and then tried configuring both as 5ESS.
Same
type of problems.

Anyone ever run into something like this?


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