[Freeswitch-users] Different codecs for different devices?

Wed May 5 08:09:05 PDT 2010

You are the man. Thank you for documenting those. I have a few on my list
that I never seem to find the freaking time to actually do them.

Regards,

JM

On Wed, May 5, 2010 at 11:12 AM, David Ponzone <david.ponzone at gmail.com>wrote:

> Guys,
>
> I added this variable to the wiki:
>
> http://wiki.freeswitch.org/wiki/Channel_Variables#variable_xxxx
>
> David Ponzone  Direction Technique
> email: david.ponzone at ipeva.fr
> tel:      01 74 03 18 97
> gsm:   06 66 98 76 34
>
> Service Client IPeva
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>
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>
> Le 04/05/2010 à 23:50, João Mesquita a écrit :
>
> I think you can also use another variable on the A leg SDP to make it
> easier on the regex. ep_codec_string.
>
> This will contain the parsed version of the A leg SDP and that's what I use
> most of the times for these tricks. Also, can you document that? :-)
>
> Regards,
> João Mesquita
>
>
> On Tue, May 4, 2010 at 1:52 PM, Anthony Minessale <
> anthony.minessale at gmail.com> wrote:
>
>> you can regex the SDP for something specific and use that to set the
>> absolute_codec_string in a standalone extension that comes first in the
>> stack and has continue=true on it
>>
>>
>>
>> On Tue, May 4, 2010 at 11:32 AM, Ken Fulmer <
>> kenfulmer at icstechnologysolutions.com> wrote:
>>
>>>  Just in case others are interested, this is possible with the following
>>> parameters:
>>>
>>>
>>> SIP Profile:
>>>
>>>
>>>     <param name="inbound-late-negotiation" value="true"/>
>>>
>>>
>>> Dial-Plan:
>>>
>>>
>>>       <action application="set" data="inherit_codec=true"/>
>>>
>>>
>>> The codec negotiated in Call Leg B, is forced onto Call Leg A. This is
>>> possible due to the “inbound late negotiation” parameter in the sip profile.
>>>
>>>
>>> Hope this helps someone else.
>>>
>>>
>>> Ken
>>>
>>>
>>>
>>>
>>> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
>>> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Ken Fulmer
>>> *Sent:* Tuesday, May 04, 2010 8:29 AM
>>>
>>> *To:* freeswitch-users at lists.freeswitch.org
>>> *Subject:* [Freeswitch-users] Different codecs for different devices?
>>>
>>>
>>>
>>> This may be a far out question but here goes:
>>>
>>>
>>> Our fax machines that are connected to ATA’s need to be g.711 on both
>>> Call Leg A and Call Leg B (in either direction).
>>>
>>>
>>> However, our phones need to be g.711 on the internal side that faces our
>>> PBX. On the side facing our SIP provider, the calls should be transcoded to
>>> g.729. Inbound the calls to phones (not ATA’s) need to be g.729 on the
>>> inbound call leg and g.711 on the outbound call leg.
>>>
>>>
>>> I realize we can set inbound / outbound codec preferences in single or
>>> multiple profiles and we can set the “absolute_codec_string” value for the
>>> outbound call leg.
>>>
>>>
>>> However, I’ve yet to determine how to set the inbound call leg’s codec
>>> differently depending on the device. Is this possible?
>>>
>>>
>>> Thanks,
>>>
>>>
>>> Ken Fulmer
>>>
>>>
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>>>
>>
>>
>> --
>> Anthony Minessale II
>>
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>>
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>>
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