BCM 50 analog trunks hanging

[celledge]

I have a BCM 50 with 3 analog trunks coming in from Bellsouth. The BCM is set for auto-answer to auto attendant on each line. The problem is that every so often the trunks are hanging as if they are not detecting disconnect. Unplugging the line and plugging it back up normally fixes the problem. They are all built as supervised trunks and all appear on sets as lines 1 through 3.

I don't deal with BCM systems and analog trunks as much as I do with my CS1000 and PRI, so maybe I am confused about how to configure these.

Any pointers to figuring this out? Should I have something changed at the CO?

 

[MagnaRGP]

If they are setup up as supervised, ensure that the CO is providing answer supervision on the trunks.

Also, what release of BCM 50 is this? There was an issue about analog trunks hanging that was resolved by a patch.

 

[celledge]

This BCM is on 1.00.2.04.j. I have downloaded 2.0, but I will need to get new keycodes before I can upgrade. Patches on these units are confusing because there are so many versions of the BCM50.

Thanks!