[Freeswitch-dev] Blink: [ERR] crypto in RTP/AVP

Oleg Khovayko khovayko at gmail.com
Thu Nov 7 18:52:33 MSK 2013


I cannot make call to FreeSWITCH using Blink client (http://icanblink.com/).

When I try to originate call, I see message:
[ERR] switch_core_media.c:2720 a=crypto in RTP/AVP, refer to rfc3711

I already set for this user:

       <param name="NDLB-allow-crypto-in-avp" value="true"/>
       <param name="auto-rtp-bugs" value="clear"/>

But both additions did not help. Restart freeswitch dies not help, too.
Blink's SDP - with crypto requests - following.

Please, suggest, how to fix this issue.


2013-11-07 10:44:02.938113 [DEBUG] sofia.c:5844 Remote SDP:
o=- 3592809842 3592809842 IN IP4
s=Blink 0.5.0 (Windows)
c=IN IP4
t=0 0
m=audio 50014 RTP/AVP 0 8 96
c=IN IP4
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:96 telephone-event/8000
a=fmtp:96 0-15
a=crypto:1 AES_CM_128_HMAC_SHA1_80 
a=crypto:2 AES_CM_128_HMAC_SHA1_32 

2013-11-07 10:44:02.938113 [ERR] switch_core_media.c:2720 a=crypto in 
RTP/AVP, refer to rfc3711
2013-11-07 10:44:02.938113 [NOTICE] sofia.c:6134 Hangup 
sofia/internal/1002 at olegh.cc.st [CS_NEW] [INCOMPATIBLE_DESTINATION]
2013-11-07 10:44:02.938113 [DEBUG] switch_channel.c:3135 Send signal 
sofia/internal/1002 at olegh.cc.st [KILL]

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