032 not releasing trunk

[430s]

hello,
according to the user, lines do not release on hang-up / rls but, instead, flash away with the in-use triangle on the lcd.
repeated hitting of the line key eventually clears the line.
no recent prog has been done.
these are analogue trunks.
any ideas?

 

[telemarv]

You probably have trunks set to Unsupervised. Change them to supervised.

 

[johnrusl]

Sometimes the local phone company is not sending a disconnect, or as I have seen, if the local phone company is at some distance from phone system the disconnect signal may not be recognizable.

 

[430s]

this was a u/s cpu and is to be swapped out
ps it transpires to be an 824 not a 032

 

[telemarv]

same thing. disconnect supervision only this time it needs to be a ds ksu and dr 5 software or higher software.

 

[Refire]

Try changing the discon timer under hardware to a lower millisecond ie 100

 

[Tech9]

Ask the phone company to program COD(cut off on disconnect)on the lines. When the remote end drops the call the local telephone office switch will then drop the call towards the switch.

 

[MetroMan]

Actually tech9, it's called CPC (calling party control) usually by the LEC's. We do alot of C.O. consulting, and many LEC's are shortening them theese days to increase call volume by shortening call setup and teardown on older analog interoffice trunks....

-T-

Trevor Farren
Metrotech Telecom Inc.