Hello, By default, Freeswitch seems always translates incoming SRTP packets to outbound RTP only packets as the INVITE SIP message to Receiver from FS contains only RTP/AVP audio media in SDP section even if the Caller's INVITE has RTP/SAVP audio media only. Caller to FS Session Initiation Protocol (INVITE) . . . . Session Description Protocol Session Description Protocol Version (v): 0 Owner/Creator, Session Id (o): 1001 625 1382 IN IP4 10.113.49.31 Session Attribute (a): rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics Media Description, name and address (m): audio 7078 RTP/SAVP 96 97 98 99 0 8 101 100 102 FS to Receiver Session Description Protocol Session Description Protocol Version (v): 0 Owner/Creator, Session Id (o): FreeSWITCH 1477472443 1477472444 IN IP4 172.17.10.23 Media Description, name and address (m): audio 25206 RTP/AVP 0 8 101 13 Is there a way to let FS send SRTP packets to receiver as the receiver can accept SRTP media only? Tom
Read the very long description on SRTP in the vars.xml file, It has some extensive documentation on this topic. (Hint: were not a proxy.) On Wed, Oct 26, 2016 at 11:42 AM, Tom Chen <chentom60@hotmail.com> wrote:
Hello,
By default, Freeswitch seems always translates incoming SRTP packets to outbound RTP only packets as the INVITE SIP message to Receiver from FS contains only RTP/AVP audio media in SDP section even if the Caller's INVITE has RTP/SAVP audio media only.
Caller to FS
Session Initiation Protocol (INVITE)
. . . .
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): 1001 625 1382 IN IP4 10.113.49.31
Session Attribute (a): rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics
Media Description, name and address (m): audio 7078 *RTP/SAVP* 96 97 98 99 0 8 101 100 102
FS to Receiver
Session Description Protocol
Session Description Protocol Version (v): 0 Owner/Creator, Session Id (o): FreeSWITCH 1477472443 1477472444 IN IP4 172.17.10.23
Media Description, name and address (m): audio 25206 *RTP/AVP* 0 8 101 13
Is there a way to let FS send SRTP packets to receiver as the receiver can accept SRTP media only?
Tom
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participants (2)
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Brian West
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Tom Chen