I have cisco-8865 and I want to call to it not from sip proxy where it registered. I send INVITE to cisco but cisco not answer to invites. In logs i found "Sender not recognized" it is mean cisco doesn't accept call from not sip proxy. But is there any configs( to accept it?
4538 DEB Mar 20 13:46:14.900625 (683:905) JAVA-::End-Of-Sip-Message::
4539 ERR Mar 20 13:46:14.900656 (683:905) JAVA-SIP : SIPProcessUDPMessage : SIPTaskCheckSource() failed - Sender not recognized
To meet the security needs of the majority of customers, a registered phone will only accept call requests from the 'proxy' it is registered to.
8865 does support 'multi-platform' mode (can register to non-CUCM call-control servers - 'proxies'), however I suspect the security behaviour described by mstover still applies - SIP messages not originating from the registered proxy are rejected.
I don't believe Cisco phones can operate in a 'stand-alone', non-registered fashion, or in a mode where they accept ad-hoc calls from anywhere.
If the SIP messages you are talking about are originating from an application, the primary solution should be to configure a SIP trunk pointing to the app's address: System Configuration Guide for Cisco Unified Communications Manager, Release 11.5(1) - Configure SIP Trunks [Cisco Unif…