Hi All, I have Asterisk 11 talking to Avaya over SIP trunk using TLS and SRTP. On incoming calls from Avaya asterisk complains of 'unsupported crypto parameters: UNENCRYPTED_SRTCP' and rejects the call with '488 Not acceptable here'
Doesn't Asterisk support UNENCRYPTED_SRTCP as crypto parameters in sdp? FYI SDP looks like this. v=0 o=- 1429194215 1 IN IP4 XX.XX.XX.XX s=- c=IN IP4 XX.XX.XX.XX b=TIAS:64000 t=0 0 a=avf:avc=n prio=n a=csup:avf-v0 m=audio 50096 RTP/SAVP 0 18 120 a=rtpmap:0 PCMU/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:120 telephone-event/8000 a=ptime:20 a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:zUVSWsFB/WjVtLxXojBT7zbNvuQ4BkOwcCkD/AjM|2^20 UNENCRYPTED_SRTCP And on CLI I see, DEBUG[1568][C-00000000] sip/sdp_crypto.c: local_key64 7vXot5kn/sl/GYv5ENN6yW0PZZapQ00c++biLgoX len 40 WARNING[1568][C-00000000] sip/sdp_crypto.c: Unsupported crypto parameters: UNENCRYPTED_SRTCP DEBUG[1568][C-00000000] chan_sip.c: Processing media-level (audio) SDP a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:zUVSWsFB/WjVtLxXojBT7zbNvuQ4BkOwcCkD/AjM|2^20 UNENCRYPTED_SRTCP... UNSUPPORTED OR FAILED. WARNING[1568][C-00000000] chan_sip.c: Rejecting secure audio stream without encryption details: audio 50096 RTP/SAVP 0 18 120 VERBOSE[1568][C-00000000] chan_sip.c: <--- Reliably Transmitting (NAT) to XX.XX.XX.XX:5061 ---> SIP/2.0 488 Not acceptable here Thanking in advance for any inputs. --Satish
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