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