Hi All: Adtran rejects the call with a 404 (which never shows up on the wire) when the Req URI IP address doesn?t match the IP on the ADtran. Is there any workarounds that anyone knows for this typical NAT issue ? other than putting a public IP OR using a firewall with SIP ALG? 3:20:31:564 SIP.CLDU Cldu::CallLegCreatedEv: (0x23fc7a8) 13:20:31:565 SIP.CLDU Incoming CallLeg created from 555-555-5555 at ip.address.# to 555-555-5555 at ip.address.# *13:20:31:573 SIP.CLDU ERROR! Request-URI host is not local, unable to proxy incoming message to 555-555-5555 at ip.address.#* 13:20:31:574 SIP.CLDU ERROR! Failed to get CLDU Interface, (0x23fc7a8) 13:20:31:575 SIP.CLDU Incoming message received from cosoftswitchip:5060 via UDP 13:20:31:575 SIP.CLDU CLDU::AppCallLegMsgReceivedEv: Null CLDU Interface, (0x23fc7a8) 13:20:31:576 SIP.CLDU Cldu::CallLegStateChangedEv: Null CLDU Interface, (0x23fc7a8)->Offering 13:20:31:577 SIP.CLDU Request rejected (404) 13:20:31:580 SIP.CLDU ERROR! Unable to finalize message: (0x23fc7a8), (0x0) 13:20:31:581 SIP.CLDU Cldu::CallLegStateChangedEv: Null CLDU Interface, (0x23fc7a8)->Disconnected Ujjval Karihaloo CTO IP Phone/Text Msg: +13032428610 E-Fax: +17202391690 Like SimpleSignal on *Facebook <http://www.facebook.com/SimpleSignal> !* SimpleSignal Inc. 3600 S. Yosemite Street Suite 150 Denver, CO 80237 [image: Description: cid:image001.png at 01CCD530.C4355DC0]