[cisco-voip] Increasing the timer for ring back from a PSTNprovider?

[dschulz]

 Sergio - 

You may want to investigate the progress indication (PI) that is being
presented from the PSTN.  This can be adjusted (if the PSTN is not providing
this under the dial-peer settings.  Look at the PI 8 and PI 3 on the voip
and pots dial peers.  HTH,


Dave  

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of dominguez herrera
sergio andres
Sent: Thursday, December 20, 2007 11:57 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Increasing the timer for ring back from a
PSTNprovider?

Im sorry I dint include a subject in my last mail.
Please follow this thread rather than the previous one.

Im having a problem in one of our callmanager clusters. This cluster has one
H323 gateway connected through an E1 digital trunk to this particular
provider.

When users dial some long distance calls, the PSTN provider takes too long
in returning a ring back to the gateway, the user then hears a fast busy
tone rather than a ring.

This problem happens with this provider only, we use other PSTN providers in
our others clusters and we dont experience this problem when dialing the
same long distance numbers.

I have opened a Trouble Ticket with the PSTN provider and they have told me
that our PBX is disconnecting the call too soon, and that our PBX should
give them some more time before assuming the call could not be completed.

My question is, is there a way to increase the time a gateway waits for a
ring back from the provider? Is this a CallManager configurable setting or
is it an IOS setting? I guess it is an IOS setting, but I cant fugure out
which one is it, I dont seem to find anything related in dial-peer
configuration mode.

Many thanks for your help.

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