[Freeswitch-users] a=fmtp:101 0-15

Raymond xxxman2008 at 126.com
Sun Apr 16 17:23:25 MSD 2017

Hi, Bilal

    How about "rewrite sdp" function ,if you didn't care about the real problem.
    check it out   https://wiki.freeswitch.org/wiki/Channel_Variables#switch_r_sdp
    But, Its really strange to see this required on the sending side. Like Michael said.   I don't think it will help you resolve the "real" problem.


At 2017-04-11 02:33:49, "Bilal Dar" <bilal at rgate-systems.com> wrote:

That is weird, I asked the provider that isn't it a negotiated setting. He said 'No'.

Can you point me to a doc that confirms it, will send it to the service provider.



On Mon, Apr 10, 2017 at 10:44 AM, Michael Jerris <mike at jerris.com> wrote:
Its currently hardcoded in our code.  Would require a new option to let you set that.  That being said, this is a negotiated setting, us sending 0-16 shouldn’t cause anything to fail.  If its failing the call because of that, that seems to me to be a problem they should correct on their switch.  Its really strange to see this required on the sending side.

> On Apr 10, 2017, at 1:34 PM, Bilal Dar <bilal at rgate-systems.com> wrote:
> We are having issues sending out DTMF, primarily when dial any conference bridge.
> My provider asked me to send  'a=fmtp:101 0-15' instead of 'a=fmtp:101 0-16'. They do not accept flash.
> Appreciate if anyone can let me know how we can fix that.
> Thanks
> Bilal

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