I have an Asterisk and Exchange2013 UM, and I want to create a SIP trunk between them.
I created the trunk like the bellow mentioned:
and also an outbound route directed to this trunk:
but when I called to 3990, 3920 or other numbers, I received these error messages:
[2013-10-21 16:54:58] WARNING[C-00000038]: chan_sip.c:22927 handle_response_invite: Received response: “Forbidden” from ‘“khk” sip:firstname.lastname@example.org;tag=as0c66acd4’
[2013-10-21 16:54:58] WARNING[C-00000038]: app_dial.c:2437 dial_exec_full: Unable to create channel of type ‘SIP’ (cause 20 - Subscriber absent)
[2013-10-21 16:55:02] WARNING[C-00000038]: channel.c:4816 ast_prod: Prodding channel ‘SIP/5001-00000062’ failed
what is my problem? please help me in this case because it is very important and critical for us.
thank you and waiting…