[Freeswitch-users] Limiting available codecs in bypass media mode

Ken Rice krice at freeswitch.org
Thu Jul 11 23:09:38 MSD 2013


Rejecting it when when they are sending multiple codecs is just plain
wrong... And I would yell at a carrier that did that...


On 7/11/13 2:03 PM, "Sergey Okhapkin" <sos at sokhapkin.dyndns.org> wrote:

> Some PSTN carriers reject calls when unsupported on PSTN side codec is set as
> primary. So sending G722 as a primary is a big deal...
> 
> I wish to have "filter codecs out" ability on bypass media.
> 
> On Thursday 11 July 2013 13:51:23 Ken Rice wrote:
>> Sending G722 to the carrier isnt that big of a deal... If they support it
>> and accept it no problem, if they don¹t support it, they¹ll pick something
>> else...
>> 
>> As far as WAN bandwidth its the same as G722...
>> 
>> K
>> 
>> 
>> On 7/11/13 1:12 PM, "Phil Quesinberry" <philq at qsystemsengineering.com>
>> 
>> wrote:
>>> I¹m wondering what the best way is to limit the available codecs when
>>> making outbound bypass-media calls to the PSTN.  The scenario is as
>>> follows:
>>> 
>>> Extension phones have HD codecs including G722 enabled for the best audio
>>> quality between extensions for internal calls.  When an outbound call is
>>> made to the PSTN, the first-choice wholesale provider we use offers (and
>>> seems to prefer) G722.  We¹d rather ensure that G711 is used instead.
>>> Despite the fact that G722 is not enabled for any of the codec prefs (I
>>> grep¹ed the entire conf dir path to be sure), FS still passes along the
>>> offer of G722 from the endpoint, presumably since it¹s operating in
>>> bypass-media mode.
>>> 
>>> Is there a setting to limit the codecs despite having bypass media set?
>>> Could we work around this by getting rid of the global bypass media
>>> setting and then setting bypass-media before bridging the call?
>>> 
>>> Thanks,
>>> 
>>> Phil Quesinberry
>>> 
>>> Q Systems Engineering, Inc.
>>> 
>>> Embedded Hardware/Software Development and VoIP Business Telephone Hosting
>>> 
>>> Improve your business telephone services and save money
>>> 
>>> (410) 969-8002
>>> 
>>> http://www.qsystemsengineering.com <http://www.qsystemsengineering.com/>
>>> 
>>> 
>>> 
>>> _________________________________________________________________________
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>>> 
>>> 
>>> 
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> 
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
> 
> 
> 
> 
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> 
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-- 
Ken
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