I currently run CCM 4.1 and 1 remote site. The remote site is running a 2811 router. We had a PRI installed in it but removed it and added 4 FXO ports and 4 analog lines from the telco.
We send all calls from there to untiy thats located in our main site.
The remote site is connected to us via FiOS and a VPN tunnel.
We can call the remote site and the remote site can call us. The problem is when a call comes over the PSTN. Unity answers but if you attempt to transfer to someone, the transfer attempts to go and then disconnects.
We have a plar on the voice port that sends it to unity. I changed that to a IP phone and called the number. I am able to pick up the IP phone and talk. But if I attempt to transfer the call the same thing happens. As soon as I push transfer, it disconnects.
I know its not a codec because the router has all the settings in it and I had set it to g711
Is this due to the analog lines?