[Freeswitch-users] DTLS and media description proto

Brian West brian at freeswitch.com
Mon Jun 7 14:35:23 UTC 2021

Try setting webrtc_enable_dtls=true in {} on the originate.

On Mon, Jun 7, 2021 at 8:47 AM Johan Pascal <johan.pascal at linphone.org>

> Hi,
> I'm trying to get freeswitch to direct a call to a linphone client using
> DTLS, as described here:
> https://freeswitch.org/confluence/display/FREESWITCH/Certificates#Certificates-DTLS
> The A leg with a DTLS client works fine but the B leg, while enabling
> correctly DTLS in the SDP INVITE(fingerprint and setup attributes) produces
> a media description using the proto "RTP/SAVPF".
> Linphone does not accept this proto as a DTLS call but expect
> "UDP/TLS/RTP/SAVPF". I'm using freeswitch v1.10.6, I found in the
> freeswitch code there
> https://github.com/signalwire/freeswitch/blob/v1.10.6/src/switch_core_media.c#L9715
> a test to switch to the expected proto but I can't find a way in the
> freeswitch settings/dialplan to get the CF_AVPF_MOZ flag on. When forcing
> the outcome of the test to be always true, I get my particular use case to
> work but I guess there is a more harmless way to proceed. Any suggestion?
> Thanks,
> Johan
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