Sip Extension Via WAN Interface

[12345kevin]

We have a 3300 MXe2 with MCD4 Software. The Wan interface is set up with a static IP address and we can use the internet etc from the internal network. We can connect via "VPN" to the WAN interface and access the 3300.

I have port forwarded 5060 & 5061 which I believe are the SIP ports to the 3300 internal address. The X-Lite software refuses to connect, although if I use VPN from the PC and program X-Lite to use the internal address it works fine (this is not a solution)

I have proved the port forwarding by using 443(HTTPS) and this works fine.

Any suggesions appreciated.

 

[fissure]

In your port forwarding, 5060 should be UDP rather than TCP (whereas 443 is TCP).

Not sure about WAN/LAN ports on the Mitel (we normally only use the LAN one)

SIP+NAT can have all sorts of issues.

 

[12345kevin]

Ports 5060/1 are forwarded for TCP & UDP, probably is to do with NAT, would be good to know if anyone else has got it working.

 

[slapin]

3300 is picky what domain you use for registration. When you connect to LAN interface everything will match. When you connect to external it will refuse. X-Lite has domain field in settings, so enter internal address in there and external in SIP proxy settings.