Known Issues
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
Symptom
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.
workarounds/fixes
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.