[Freeswitch-users] Issue connecting to FS with SRTP

[Gonzalo Gasca Meza]

Did you enable/configure SRTP? This
<http://twilio-marketing-prod.elasticbeanstalk.com/resources/images/docs/TwilioSecure-Freeswitch.pdf>
is a sample guide I use for Twilio TLS/SRTP which can help
Can you post all logs?


On Tue, Aug 16, 2016 at 6:10 PM, Oleg Stolyar <olegstolyar at gmail.com> wrote:

> Hi guys,
>
> I am trying to connect to FS using the CounterPath SDK for Android.  I use
> TLS for signalling.  All works well until I try to enable SRTP.  Then FS
> rejects the call the INCOMPATIBLE_DESTINATION message.  Is there something
> wrong with the SDP?  Here are the relevant SDPs from the INVITES.
>
> NON-SRTP (works)
>    v=0
>    o=- 622419737965 1 IN IP4 192.168.1.78
>    s=
>    c=IN IP4 192.168.1.78
>    t=0 0
>    m=audio 57194 RTP/AVP 3 120 123 122 121 9 8 0 84 85 18 101
>    a=rtpmap:120 opus/48000/2
>    a=fmtp:120 useinbandfec=1; usedtx=1; maxaveragebitrate=64000
>    a=rtpmap:123 SILK/24000
>    a=rtpmap:122 SILK/16000
>    a=rtpmap:121 SILK/8000
>    a=rtpmap:84 speex/16000
>    a=rtpmap:85 speex/8000
>    a=rtpmap:18 G729/8000
>    a=fmtp:18 annexb=yes
>    a=rtpmap:101 telephone-event/8000
>    a=fmtp:101 0-15
>    a=sendrecv
>
> SRTP (does not work)
>    v=0
>    o=- 622187157154 1 IN IP4 192.168.1.78
>    s=
>    c=IN IP4 192.168.1.78
>    t=0 0
>    a=fingerprint:SHA-256 4D:08:D6:49:9E:CA:77:A2:77:74:
> 02:A0:B9:92:32:2F:2D:76:7D:59:7F:A4:CA:85:16:BA:D0:27:0A:74:1C:0F
>    a=setup:actpass
>    m=audio 61434 UDP/TLS/RTP/SAVP 3 120 123 122 121 9 8 0 84 85 18 101
>    a=rtpmap:120 opus/48000/2
>    a=fmtp:120 useinbandfec=1; usedtx=1; maxaveragebitrate=64000
>    a=rtpmap:123 SILK/24000
>    a=rtpmap:122 SILK/16000
>    a=rtpmap:121 SILK/8000
>    a=rtpmap:84 speex/16000
>    a=rtpmap:85 speex/8000
>    a=rtpmap:18 G729/8000
>    a=fmtp:18 annexb=yes
>    a=rtpmap:101 telephone-event/8000
>    a=fmtp:101 0-15
>    a=sendrecv
>
>
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