Hi Mustafa! As you see from the log message, the error happens inside pjsip. Thus, asking for help the sip-router and Kamailio mailing lists wont get you any further. So, you can only ask at the pjsip mailing list, hopping somebody will know the answer. Further you shoul use a better subject. As the problem is clearly in pjsip and unrelated with Kamailio I would suggest something like "SRTP problem: Failed generating random key". regards klaus mustafa samara schrieb: > Hello > > i am trying Qjsimple 0.6.3 with Kamailio 1.5 with tls support, i make > the user register successfully but when i am trying to invite another > user i got the following error: > " > transport_srtp Failed generating random key: unspecified failure > pjsua_call.c Error initializing media channel: Unknown error 259800 > [status=259800] > Dialog destroyed > QjSimple: Error calling buddy: Unknown error 259800 [status=259800] > " > the sip setting as the following: > protocol: tcp > srtp : mandatory > srtp requirements: tls > also i got the same error if the sip setting as the following: > protocol: tls > srtp : mandatory > srtp requirements: tls > or: > protocol: tls > srtp : mandatory > srtp requirements: sips > > any body help me please? > > -- > Eng.Mustafa Al-Samara > > > ------------------------------------------------------------------------ > > _______________________________________________ > sr-dev mailing list > sr-dev at lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev