I'm a bit stumped on this... Randomly, various phones go wonky and won't let the user "pick up" intercom or a line group. This has happened with various phones and on different digital station cards in the same system (an FXII running 17F).

Here's what happens:
* When phone handset is picked up, phone doesn't prime to intercom (even though it's programmed to)
* If I hit the intercom button for the extension, I get "Line Unavailable" (odd since it's intercom, not line group)
* If I hit the speaker button, I get the extension, port, and name, but no DT. If I dial an intercom extension from here, it just goes back to idle when I'm done dialing
* If I call the phone from another phone, it just beeps once and the caller goes to VM.

The problem seems to appear and go away at random, although today it seemed to go away when I logged into VMMI to check the programming of the extension.

Any ideas? Gremlins? call