I should probably know the answer to this but it's never come up before...
I have a customer with an MGCP gateway that holds a number of FXS ports. One of these ports connects to a phone in their elevator. The phone is old and uses pulse signaling. There doesn't seem to be a way to change it to dtmf. With the port configured for MGCP, I can't break dialtone when dialing. If I put a test set on the port and use DTMF signaling, everything works. I know I could switch the port to H.323 but I'd prefer not to.
Since this is a production gateway (that terminates their PRI as well) I don't want to troubleshoot by trial and error. I'm assuming its possible to do this with MGCP. I'm hoping someone can point me in the right direction.
Actually, I don't think I can (at least not easily). The outgoing trunk (PRI) is mgcp-controlled and I don't think (although I haven't tried) I can send a call from the an fxs port through the PRI via an H.323 dial peer.
If I'm wrong, let me know.
In any case, I determined that pulse signaling isn't supported in MGCP. I'll probably just use an ATA.
Sorry to step off topic here but I am curious why you can't just change out the actual Elevator phone? Is it physically impossible or something built in? I have had to work on many Elevator phones over the years, and all of the "old" ones were inside a door within the elevator but could still be changed out with something with similar dimensions.
The other question I have is that most Elevator phones are setup to "Hotline" to a pre-determined number like a Security desk or Alarm company, is that not a solution that could be done here? That way the fact that the old phone uses Pulse dial would not come into play.
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...