Valcom paging system has an FXS board that communicates with the GXW4104 FXO that I setup. The software is Incrediblepbx like 13 or something. I can get that info later but don't have access to the phone system presently. The Valcom system has button in each classroom at a school. If a teacher presses it they have intercom access to Asterisk via the FXO gateway. If the CallerID from the Valcom is NOT a valid extension on Asterisk everything works as expected. If the CallerID on the...
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