[OpenSER-Users] Off topic: generating ringback tone from audio files

[Klaus Darilion]

Dan-Cristian Bogos wrote:
> Hi Guys,
> 
> I also have done it and it worked like a charm.
> I could even queue streams (more steps), all being played inband,
> therefore no charge from PSTN side.
> It all depends on your carrier whether he (or his partners) will open
> one way channel on PSTN side or generate his own stuff when receiving
> Progress indicator on ISDN (#C7) side - even Cisco ASes have this
> option built in as a dial-peer command.
> 
> Cheers,
> DanB
> 
> 
> On 9/22/07, Klaus Darilion <klaus.mailinglists at pernau.at> wrote:
>> Mark Anthony C. Delfin wrote:
>>> Hi all,
>>>
>>> Is it possible to alter ring back tone on cisco gateways.  For example I
>>> want change my ringback to an audio file.  Some Mobile providers do this
>>> already.
>>
>> I once tried that too on a 5300 - streaming early media into the PSTN.
>>  From reading the docs I came to the conclusion that it should be
>> possible but I could never test it as usually PRI are not allowed to
>> stream early media to the PSTN.

Hi Dan! Could you be a be more detailed how this is done in the gateway? 
I once did it with a tcl script and it was very complicated.

regards
klaus