[cisco-voip] Failed Cellphone calls across MPLS network

[Voll, Scott]

Could it be a resource (transcoding) / or codec problem?

 

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From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Sechaba Mokoena
Sent: Tuesday, June 27, 2006 7:32 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Failed Cellphone calls across MPLS network

 

Hi,

 

I'm having trouble dialing cellphone numbers from an IP phone at a
remote branch. Basically I have three sites which I will refer to as
JHB,DBN, and CPT. My CallManager is at the JHB site with a 2821 router
using an E1 for PSTN access. All sites are connected to each other
through an MPLS network. The phones at the DBN and CPT sites register
with the CallManager at the JHB site. All landline calls made from the
DBN and CPT sites breakout via BRIs on 2821 routers located at each
site. My client wants all cellphone calls made at the DBN and CPT sites
to break out on the JHB 2821 router to make use of Leased Cost Routing.
I have created specific route patterns for this requirement directing
all cellphone calls to the gateway in JHB. When placing a call to a
cellphone, it rings once and the call is dropped. I ran isdn q931 debugs
on the JHB router and found this: Cause i = 0x80AF - Resource
unavailable, unspecified. Cellphone calls made from JHB go through
without any problems, does anyone have any suggestions?

 

Regards,

 

Sechaba Mokoena

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