The reason is FXO to FXO connections are not supported
The only supported combinations are
1.E&M -to- E&M
2.FXO to FXS
3.FXS to FXS
So alternatively need to get E&M cards for bi-directional cummunication. If you have FXS interface the call will work in one direction only.In fxo-to-fxs dial-tone will be provided via the PBX with the fXo connection and the pbx with thefxpo would be able to pulse out digit to intitiate a call setup.
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...