This page includes known issues, workarounds and fixes. It has the following levels:
general Symptom Class -> specific Symptom Class -> Symptoms -> Workarounds/Fixes
Random Call Drops
Random Call Drops can have different sources, first it is necessary to identify the source of the calldrop:
* SIP Side * PSTN Side (ISDN, Analog, GSM) * beroFix Side
ISDN Side Call Drops
ISDN Call drops can have different reasons, most like the Release cause helps to identify the source of the problem.
Release cause: 102 Timer expired
Calls are dropped randomly, ISDN Debug Files show Release Cause "102" Timer expired. Deeper Analysis with the Wireshark-Filter-Line:
lapd.control.s_ftype == 0x0002
produces a some lines looking like:
then you will most likely have an ISDN Side Problem on this Port.
Try connecting the cable to another port and see if the Rejects follow to the new port. If yes, then either:
* cable * NTBA * Central Switch from provider
are broken, contact your provider for assistance.
If the errors stay on the previous ports, it's most likely a broken beroFix modules, which needs replacement.