I'm having an issue with bouncing calls to an external mobile number, either as part of a ring group (forward to outside number) or by creating a forwarding rule for a specific extension to forward the call to 'my mobile number' or 'an external number or skype id'. I've formatted the number as per the outbound rule created (9 for outside call). Here's a copy of the log. From what I can see there's not much atttempt at an call to the outside world. I've tried calling 199 (the extension set to forward the call to the mobile number) both internally and from an external phone on a DDI. Extension 100 (the phone I'm calling from) can make outside calls. 18:54:19.721 [CM503020]: Normal call termination. Reason: Not available 18:54:19.721 [CM503016]: Call(3): Attempt to reach <sip:firstname.lastname@example.org> failed. Reason: Not Registered 18:54:19.720 [CM503016]: Call(3): Attempt to reach <sip:email@example.com> failed. Reason: Not Registered 18:54:19.720 [CM503017]: Call(3): Target is not registered: Ext.IVRForward 18:54:19.718 [CM503010]: Making route(s) to <sip:firstname.lastname@example.org> 18:54:19.718 [MS210000] C:3.1:Offer received. RTP connection: 192.168.1.66:4000(4001) 18:54:19.716 Remote SDP is set for legC:3.1 18:54:19.715 [CM505001]: Ext.100: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CXPhone for iPhone 1.0.23] PBX contact: [sip:email@example.com:5060] 18:54:19.712 [CM503001]: Call(3): Incoming call from Ext.100 to <sip:firstname.lastname@example.org> 18:54:19.705 [CM500002]: Info on incoming INVITE: INVITE sip:email@example.com:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.1.66:5060;rport=5060;branch=z9hG4bKPj5T6qTeGwQAFuJAQZ0JdmcTf4ida3YOLG Max-Forwards: 70 Contact: "Andy"<sip:firstname.lastname@example.org:5060> To: <sip:email@example.com> From: "Andy"<sip:firstname.lastname@example.org>;tag=JtnxwHRlSg0bnAKA3b5MKVNY3HB2FVcy Call-ID: f2rpyW7TkGrcgB2tS2BvDfNCDcBPyJdz CSeq: 12719 INVITE Session-Expires: 1800 Min-SE: 90 Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS Proxy-Authorization: Digest username="100",realm="3CXPhoneSystem",nonce="414d535c04b0f14b26:7cf7ec6c2ed8a0ba94211fac5f3da521",uri="sip:email@example.com:5060",response="f0512b0ccb2099a6739107d56f013bc6",algorithm=MD5 Supported: replaces, 100rel, timer, norefersub User-Agent: 3CXPhone for iPhone 1.0.23 Content-Length: 0 Any help greatly appreciated!