[Freeswitch-users] Bypass_media mode

[Mark Campbell-Smith]

Hi All,

Does anyone know if tone_detect can be used with bypass_media?

I thought the SIP re-Invite message can be used to update media
parameters, including IP address endpoints.  Does FS try to do this
in the case that tone_detect is used?

In my case, the calls are dropped.

On Tue, Jan 12, 2010 at 9:23 PM, Mark Campbell-Smith
<mcampbellsmith at gmail.com> wrote:
> Hi Jason,
>
> I have understood that.  Its not that a difficult concept to understand!
>
> In the log I see:
> 2010-01-12 21:03:17.585598 [DEBUG] mod_dptools.c:818
> sofia/internal/1000 at 192.168.1.120 SET
> [ringback]=[v=-7;%(400,200,413,438);%(400,2000,413,438)]
> 2010-01-12 21:03:17.605591 [DEBUG] switch_core_session.c:1509
> Application tone_detect Requires media! pre_answering channel
> sofia/internal/1000 at 192.168.1.120
>
> I thought the SIP re-Invite message can be used to update media
> parameters, including IP address endpoints.  Does FS try too do this
> in the case that tone_detect is used?
>
> On Tue, Jan 12, 2010 at 8:53 PM, Jason White <jason at jasonjgw.net> wrote:
>> Mark Campbell-Smith <mcampbellsmith at gmail.com> wrote:
>>> I've updated and tested bypass_media.
>>>
>>> It works if I remove this line from the B leg dialplan (ie 2010 calls
>>> 1000 - this is in the 1000 section of the dialplan):
>>>                         <action application="tone_detect" data="fax
>>> 1100 r +5000 transfer 'receivefax XML features' 1" />
>>>
>>> Does bypass_media work with tone_detect?
>>
>> As I understand it, tone_detect detects tones in the RTP stream (i.e., in the
>> audio). For this to be possible, FreeSWITCH has to be in the audio path, hence
>> bypass media cannot be used
>>
>> If this reasoning isn't obvious to you, then you've misunderstood what
>> tone_detect does or what bypass media is (the audio traffic flows directly
>> between the two endpoints without passing through the FreeSWITCH system that
>> establishes the connection, therefore FreeSWITCH can't process it to detect
>> tones and consequently bypass media and tone detection are inherently
>> incompatible.)
>>
>>
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>