[cisco-voip] One-way audio after 2nd transfer

[Tim Medley]

Is the 7935 in the same device pool as the receptionist 7960? Could be a
codec issue.

Are the Gateway and the 7935 separated by a router or firewall? Could be an
ACL, NAT or a Firewall blocking some traffic.

tm

Tim Medley
http://www.medleylabs.com
 

http://www.sccp2000.com IP Telephony News, Tips and Tricks


-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Mike Armstrong
Sent: Monday, March 28, 2005 5:42 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] One-way audio after 2nd transfer

Today we experienced a repeatable one-way audio problem:

Inbound PSTN call -> PRI -> 3640 H.323 -> CCM 4.1(2)

The call went to the receptionist (7960), who transferred it to an 
administrative assistant (7960), who transferred it to a 7935 conference 
phone.  At the 7935, only outbound audio worked; no inbound audio was heard.

They tried about 4 calls, and rebooted the 7935 once before giving up, 
ultimately placing the call from the 7935 to the outside party.  Everything 
went fine from that point.  Is this a known problem to anyone?  I'll start 
digging into the traces tomorrow, but would wlecome any labor-saving 
guidance.

Mike Armstrong
UF/IFAS CREC
Lake Alfred, FL 

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