[Freeswitch-users] Polycom G722 negotiation

[Anthony Minessale]

It seems like a bug in the polycom, hold/unhold should maintain the
original SDP already negotiated.
I would try updating the firmware.
I suspect polycom is not really offering G.722 but is saying they want
to in the sdp.
Then its ignoring the G.722 because it's still expecting ULAW.

We might have to make a param that does not allow codec re-negotiation
once a call is up as a hack to deal with this.


On Mon, Feb 28, 2011 at 1:22 PM, Spencer Thomason
<spencer at 5ninesolutions.com> wrote:
> No, Freeswitch is processing the media, proxy media is not on either.
>
>
> On Feb 28, 2011, at 7:15 PM, Anthony Minessale wrote:
>
>> Are you doing this with bypass_media=true?
>>
>>
>> On Mon, Feb 28, 2011 at 9:55 AM, Spencer Thomason
>> <spencer at 5ninesolutions.com> wrote:
>>> The devices are using 20ms G722.  The strange thing is that if the
>>> call starts out as G722, everything works totally fine.  The problem
>>> arises when the phone has G722 first in its prefered codec, the FS
>>> profile is set to generous, and a call starts out as PCMU.  The audio
>>> is fine until someone places a call on hold.  After taking a call off
>>> hold, when the FS profile is set to generous, FS honors the Polycoms
>>> preference for G722 and then tries to switch to G722.  At this point
>>> there is no audio.  If the sophia profile is set to greedy, as
>>> expected Freeswitch does not allow the switch to G722 and there are
>>> no
>>> audio problems.  This only happens when a call starts out in
>>> something
>>> other than G722 and then tries to switch.  I.e.  client ---G722--->
>>> FS
>>> ---PCMU---> Provider  works and client ---G722---> FS ---G722--->
>>> client works but provider ---PCMU---> FS ---PCMU---> client and
>>> then a
>>> call is placed on hold and resumed a G722 does not.
>>>
>>> Spencer
>>>
>>> On Feb 28, 2011, at 3:34 PM, peely wrote:
>>>
>>>> What ptime is your device offering? FreeSWITCH only supports 20ms
>>>> G722, I get
>>>> clipped audio for example when G722 30ms is offered on Snoms, but
>>>> they work
>>>> perfectly when I force them to 20ms.
>>>>
>>>> --
>>>> View this message in context: http://freeswitch-users.2379917.n2.nabble.com/Polycom-G722-negotiation-tp6063481p6073705.html
>>>> Sent from the freeswitch-users mailing list archive at Nabble.com.
>>>>
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>>
>>
>>
>> --
>> Anthony Minessale II
>>
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>
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-- 
Anthony Minessale II

FreeSWITCH http://www.freeswitch.org/
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AIM: anthm
MSN:anthony_minessale at hotmail.com
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