I have Valcom door phones connected to a Valcom 2904 door controller. The Valcom controller is connected to my VoIP system via a FXO port on my 2921 router.
I'm using MGCP.
After configuring everything in the 2921 and in CUCM (126.96.36.19900-2), I can successfully press the button on the door phones and connect to the DN I want to. The only issue I have is on the called parties phone, the call comes in as an "unknown" caller. I cannot figure out how to assign a DN to the FXO port or have it send some sort of Caller ID so the called party knows the door phones are calling.
I did try to enable caller ID. When it was enabled, the call would not connect between the analog device and my targeted DN.
I tried via CUCM as you show and also tried via programming in the 2921.
I did see various other posts that suggested there was a known issue with caller ID and MGCP, but my understanding was it dealt with incoming caller ID to the device connected to the FXO port. I want the device that connects to the FXO port to provide caller ID to it's called party.
I thought maybe checking "Transmit UTF-8 for calling party name" would work, but it didn't. What field would it transmit for calling party name anyway.....the device description field?
I realize the Valcom devices don't send any CallerID. I was assuming there was a way I could program the FXO port to pass out a caller ID for anything that used the port to call out. If I were to hook a POTS phone to the FXO port, could I assign that phone an Extension number or DN in call manager or via the router config??
I have ATA187's and VG204's (FXS ports) that I can assign DN's to the analog devices I connect to. Is that because of the difference between FXS and FXO??
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