We have an AS5300 using 1140 Sip phones. When dialing an emergency #, the sip invite includes a field, X-Original-IP-ADDR: (ip of phone). We are testing with a genband AS server and the SESM rejects the invite with a SIP 400. Error in validating originalIpAddr: address type. Ive searched high and low but havent been able to find anything on this field. Does anyone happen know what would be causing the SESM to reject this.