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.