OS = CentOS-6.3 (freepbx)
Arch = x86_64
Asterisk = 11.3.0
FreePBX = 2.11.0.0
Twinkle = 1.4.2
I can dial out using a Twinkle soft-phone providing that encryption is set to NO for that device in FreePBX. Otherwise I see this on the soft-phone:
Wed 09:49:41 Line 1: call failed. 488 Not acceptable here
and this in the log:
== Using SIP RTP TOS bits 184 == Using SIP RTP CoS mark 5 [2013-05-15 09:55:25] WARNING[1642][C-00000008]: chan_sip.c:10470 process_sdp: Matched device setup to use SRTP, but request was not! [2013-05-15 09:55:25] WARNING[1642][C-00000008]: chan_sip.c:10470 process_sdp: Matched device setup to use SRTP, but request was not!
Is this a problem with Twinkle, with Asterisk or with my configuration choices respecting encryption on either or both?
On Asterisk the device is set to Encryption = Yes (SRTP Only)
On Twinkle the user profile is set to:
security -> Enable Z/SRTP = yes ZRTP -> Only encrypt is remote indicates ZRTP in SDP = no Indicate ZRTP support in SDP = yes Warn if remote disables encryption = yes
Is encryption in fact available in Asterisk/FreePBX? I am having a similar problem with my test VOIP desk sets; a Snom320 and a Snom870. They have worked in the past with no encryption but when I try to enable SRTP for them I get the same errors as I report above.