[Freeswitch-users] Polycom G722 negotiation

[Spencer Thomason]

Yes, that what I thought.  I'm running the latest firmware, 3.3.1.   
I'll report it to them as its clearly offering a different SDP after  
the unhold.  Yes it might be nice if Freeswitch refused to switch  
codec on a call that is up even if the negotiation is set to generous.

Thanks for your help,
Spencer



On Feb 28, 2011, at 9:19 PM, Anthony Minessale wrote:

> 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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>
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>
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