Hi All Has there been problems with Caller ID and Asterisk 1.2.10 ??? I have a Phone Number from Teliax, I get this chan_sip.c:10468 handle_request_invite: Failed to authenticate user "3523029577" <sip:3523029577@207.174.202.2>;tag=as03efd979 And the call does not go through. I have a CG-410 FXO gateway if I enable caller ID I get the same thing, without CallerID enabled It works Here is what I see in the SIP Packets From: 3000<sip:3000@10.10.10.10>;tag= Works From: 3000<sip:3523029577@10.10.10.10>;tag= FAILS 3000 is the exten in SIP.conf for the FXO gateway 3523029577 is the caller ID of the incoming call 10.10.10.10 obviously is the Asterisk IP Shouldn't it read 3523029577<sip:3000@10.10.10.10>;tag= ???? Thanks Barry