I have a HT818, we are looking at using these as a replacement for PSTN phone line on existing phone systems.
The idea will be to move the current main number over to SIP and connect the FXO ports to the Trunk ports on the phone system.
We have the registration part worked out and you can call in and out.
The problem is if the first FXO port is busy we cant seem to get it to line hunt (ring at the next available port).
Can anyone help with this configuration.