Asterisk 13 WebRTC Status Report

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hi,

i’m fighting with webrtc for 14 days reporting my experience to minimize number of crazy asterisk users

i have working webrtc with simpl5 + asterisk 13 + pjproject 2.4.5 +
chan_pjsip + secure websockets + secure audio + audio in both ways

problems first, i needed run chan_sip for old hard phones and wss with chan_pjsip only for webrtc. this is possible with patch from https://issues.asterisk.org/jira/browse/ASTERISK-24106

chan_sip is not usable for webrtc because of https://issues.asterisk.org/jira/browse/ASTERISK-24602

another problem arise with RTP/SAVPF negotiation this can be solved with patch for Asterisk from https://issues.asterisk.org/jira/browse/ASTERISK-24602
and for pjsip http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2015-September/018607.html

i hope this info helps

what is your experience with WebRTC?

See you at WebRTC Expo Paris 🙂

p.s. many thanks to my colleague martin tomec for debugging support

p.s.2 relevant part of pjsip.conf

[global]
[transport-wss]
type=transport protocol=wss ;udp,tcp,tls,ws,wss bind=0.0.0.0

;===============ENDPOINT TEMPLATES

[endpoint-basic](!)
type=endpoint transport=transport-wss context=route_phones disallow=all allow=alaw allow=ulaw force_avp=yes use_avpf=yes ; Determines whether res_pjsip will use and enforce usage of media_encryption=dtls ; Determines whether res_pjsip will use and enforce dtls_verify=no ; Verify that the provided peer certificate is valid
(default:
dtls_rekey=0 ; Interval at which to renegotiate the TLS session and rekey dtls_cert_file=/etc/pki/tls/certs/pbx.crt dtls_private_key=/etc/pki/tls/private/pbx.key dtls_setup

3 thoughts on - Asterisk 13 WebRTC Status Report

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  • Den 2015-09-15 kl. 16:52, skrev asandovalros@gmail.com:

    In asterisk you have “rtp set debug on” to see if you get rtp packets. On your client you can start wireshark and look if RTP packets flow in both directions.

    If you have RTP traffic, maybe you didn’t attach the incoming media to an audio/video tag in your html. For example:

    html:
    In the event-handler for ‘addstream’ for the call, you have to attach the stream to #remoteView.

    /Johan

    —