[cisco-voip] Late CallerID on PRI

[John Osmon]

On Wed, Jul 02, 2008 at 03:51:27PM -0500, Peder @ NetworkOblivion wrote:
> 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.

We've always used:

!
sip-ua 
 timers buffer-invite 2000