Hi guys, Trying to get my 3cx box to talk to my Avaya IP500 r6. I want to be able to : 1) have Avaya phones use a dial plan to connect over a SIP line to access 3cx and then out my skype gateway 2) Route calls to my skype gateway through to my IP500 Details: The two devices are on the same LAN, the 3cx is not a domain member (xphome). 3cx version is latest/greatest. 3cx IP: 10.63.0.15. IP500 is r6.08. IP500 IP: 10.63.0.202. no firewall rules for traffic on LAN. Implementation: 3cx -- Setup extension with ID: 6000 and PW: 6969 IP500 -- create a sip Line in IP500 config, details: Sip Line: Line number: 18 ITSP Domain Name: 10.63.0.15 ITSP IP: 10.63.0.15 Layer 4 Protocol: UDP Network Topolgy Info: LAN1 Send Port: 5060 Registration Required: No In Service: Yes Use Tel Uri: No Check OOS: No Call Routing Method: To Header SIP URI: Via: 10.63.0.202 Local URI: Use Authentication Name Contact: Use Authentication Name Display Name: Use Authentication Name Registration: 1:6000 Incoming Group: 69 Outgoing Group: 69 Max Channels: 10 Creds: Username: 6000 authentication name: 6000 password: 6969 expiry: 60 Shortcode: 6N; Action: Dial Number: N"@10.63.0.15"