Dropped calls after dialing

[rokkena]

I have a BCM 400 with 3.7 software. Sometimes, when a user dials out,
a dial tone is heard
the number is dialed eg , 915555551234
the call is immediately dropped.

This has happened to different users every now and then. Usually after hanging up, it works normally. Any ideas? Thanks in advance

 

[snowman50]

Reboot system first.this will reset the cards
What type off lines are you using.
Could be a line problem.
Test each line with BCM monitor to see which one is having the problem.
Trial and error method