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

[Sergey Okhapkin]

Yes, it's 100% wrong. But it is a real life and we have to "adjust" to 
interconnect with those carriers because they offer best call rates.

Real life is not RFC-conformant...

On Thursday 11 July 2013 14:09:38 Ken Rice wrote:
> 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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