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

[Mike Armstrong]

I'm going to see if we can repeat it at will, and if we can I'll contact TAC 
and see what sort of information they want.  Right now it's a case of so 
much to do, so little time..

mike
----- Original Message ----- 
From: "Tim Medley" <medley at mac.com>
To: "'Mike Armstrong'" <mfa at crec.ifas.ufl.edu>; <cisco-voip at puck.nether.net>
Sent: Tuesday, March 29, 2005 9:19 AM
Subject: RE: [cisco-voip] One-way audio after 2nd transfer


> Mike,
>
> I was wasn't trying to blame the issue on 4.1(2). A one way audio problem 
> is
> usually related to an issue with NAT or a forewall/acl type blocking.
>
> You may be running into a new bug, I would open a ticket with TAC and see
> what they say, they will probabally ask you to sniff the network and see
> what the output shows.
>
> tm
>
> Tim Medley
> http://www.medleylabs.com
>
>
> http://www.sccp2000.com IP Telephony News, Tips and Tricks
>
>
> -----Original Message-----
> From: Mike Armstrong [mailto:mfa at crec.ifas.ufl.edu]
> Sent: Tuesday, March 29, 2005 9:12 AM
> To: medley at mac.com; cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] One-way audio after 2nd transfer
>
> Both are in the same device pool, same VLAN.  Also, this has worked in the
> recent past, I'm told, so I don't think it can be blamed on 4.1(2), which
> was installed last year.  However, both ciscocm.4-1-2-sr1 and
> win-OS-Upgrade-K9.2000-2-7sr2 were installed on 3/20 and could be suspect.
>
> mike
> ----- Original Message ----- 
> From: "Tim Medley" <medley at mac.com>
> To: "'Mike Armstrong'" <mfa at crec.ifas.ufl.edu>; 
> <cisco-voip at puck.nether.net>
> Sent: Monday, March 28, 2005 6:47 PM
> Subject: RE: [cisco-voip] One-way audio after 2nd transfer
>
>
>> 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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>>
>>
>
>