[Freeswitch-users] Ringback after pre_answer without bridge?

[Emrah]

I had the exact same question a few months ago. It has to be scripted and done via ESL as it is not supported natively by FS. If it can help, you can always bridge to a loopback/wait channel. 
In my scenario I wanted FS to continue dialplan execution while a ringback is played to the caller.

E
> On May 31, 2016, at 3:49 PM, Dmitry Sytchev <kbdfck at gmail.com> wrote:
> 
> Maybe there is also possibility  to start background MOH when there is
> no media on channel?
> 
> 2016-05-31 14:57 GMT+03:00 Dmitry Sytchev <kbdfck at gmail.com <mailto:kbdfck at gmail.com>>:
>> Hi all!
>> 
>> I'd like to resolve some unclear ringback behavior in early media
>> mode. I'm trying to implement ringback while no bridge active.
>> A calls FS, FS does something, then searching for B and bridges A to B.
>> 
>> I'd like to start playing custom ringback immediately after call from
>> A gets into FS, not when we start bridge to B.
>> 
>> I'm doing something like that:
>> 
>> <action application="set" data="ringback=%(2000, 4000, 440.0, 480.0)"/>
>> <action application="set" data="instant_ringback=true"/>
>> <action application="set" data="bridge_early_media=true"/>
>> <action application="pre_answer"/>
>> <action application="sleep" data="10000"/>
>> ...
>> <action application="bridge" data="some bridge data"/>
>> 
>> There is no ringback to A in such scenario until bridge is called in
>> further dialplan processing. I've tried all combinations of
>> ignore/bridge early media, but with no luck. Pre_answer can be called
>> directly or by FS when call is recorded, with no difference. There is
>> a wiki page that recommends usage of ring_ready:
>> 
>> https://freeswitch.org/confluence/display/FREESWITCH/mod_dptools%3A+ring_ready
>> 
>> ring_ready works, but it can give only Ringing to calling side, so  I
>> can't pass custom RBT to calling party. It would be enough for me, but
>> once somebody calls pre_answer, no early media is passed until bridge
>> attempt.
>> 
>> What can be done to resolve this? Thanks in advance.
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> --
>> Best regards,
>> 
>> Dmitry Sytchev,
>> IT Engineer
> 
> 
> 
> -- 
> Best regards,
> 
> Dmitry Sytchev,
> IT Engineer
> 
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