Calls dropping after 1 hour exactly

[ClaytonM]

All calls are dropping after 1 hour exactly.

Have had problem since v16.
Running ver. 18.0.234 on PC. Pro Version

MAXCALLDURATION = 10800 (therefore 180 minutes)

MAIN SIP provider (EB Solutions, Canada) says they are not cutting calls.

Where do I look now? Any help appreciated.

 

[SweetAction]

Set 3CX to verbose logging, replicate the issue, check the activity log to see why the call dropped.

 

[NikosT_3CX]

@ClaytonM in order to eliminate the PBX from the middle, make a call from on extension to another and let it last more than one hour. Then you may check this with your provider again.