[cisco-voip] Failed Cellphone calls across MPLS network

[Ryan Ratliff]

Depends on who is sending the disconnect with cause 0x80AF.  If CM is  
sending this then it is going to be a codec mismatch.    The fact  
that it rings once before disconnecting probably means that it fails  
when the cell phone answers the call.

-Ryan

On Jun 27, 2006, at 11:10 AM, Voll, Scott wrote:

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



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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