Tuesday, September 23, 2008

Remote extensions are a hot topic with 3CX. As anyone knows who has wrestled with them, SIP and RTP give us plenty of issues when it comes to NAT and remote phones. I went in search of a plug and play and secure solution for remote extensions.

I ended up using OpenVPN w/ 3CX and a SNOM 370 IP Phone with the OpenVPN firmware to achieve this solution. Here is a complete write up.....

Implementing Remote Extensions in 3CX w/ OpenVPN