Hi! I try to register SIP phone. I configured UCM End user and other settings like was discribed in a cisco's guide about SIP-phones. But redistration failed. It is not a network communication problem. I find this error in UCM logs "Rejecting foreign host/domain" about my SIP-phone. How can I find out, what does it means? How can I debug SIP-registration on UCM? Is it possible to get standart SIP error codes from UCM?