[cisco-voip] Late CallerID on PRI

[Mark Holloway]

We use 5ESS switches and they do not work this way. On our network  I'm not
really a 5E guru, but it sounds like your provider is doing something
non-standard. Do you know how long the delay is before the QSIG update comes
through?  Usually SIP will send a re-invite with the updated information
although I've never tested this specific scenario.



-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Peder @
NetworkOblivion
Sent: Wednesday, July 02, 2008 1:51 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Late CallerID on PRI

I've got a rather strange problem and I can't find a resolution.  I've 
got two PRI from two different providers into the same router with an 
NM-HDV card.  On one of them, I get callerid name as part of the q.931 
setup and then when it passes calls to SIP, I see the callerid name on 
the end phone.  On the second PRI, I don't get the name as part of the 
initial setup, I get a second q.931 update that shows the callerid name. 
  The problem is that since it is an update, this info is not passed in 
the SIP invite as it is too late for the invite.  Has anybody else seen 
this and know of a way to get the router to wait a half second or so 
before sending the SIP invite to get the callerid name in there?  FYI, 
getting the provider to do something isn't going to happen.  They have 
an ATT 5ESS and they say that is the way it works.  Thanks.

peder
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