I have an MGCP gateway with 4 FXO. Only 2 FXO er connected to Telco lines.
One FXO/Line hehaves very normally. However, When I call the num asssociated to the second FXO the attendant internal IP phone keeps to ring one time then stops , then rings one time again , then ring one time ,.... continuously.
I can't see any prob in the config and the debug commands output
If someone has an SDI trace (Detailed level) from UCM showing the MGCP and SCCP signaling of this; and/or an output from the router with the following debugs, it would help us narrow this down for you. Please include the gateway and IP phone addresses involved in the example.
debug voip ccapi inout
debug vpm signal
Also, is this a loop or ground start FXO circuit?
Lastly, I'm not positive that I follow the original description here. Please confirm whether this is accurate or not:
Calling party hears normal ringback.
Called party phone rings once and then stops
Does the call disappear from the phone entirely or just stop ringing?
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.