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I haven't got any restictions on the calls per trunk, the number of sim calls is set to 8 currently (matching the 3CX free annual licence). This configuration has been working untouched for approx. 3 years with no issues. The installation was migrated from a Win 2012 server to Win 2016 at the...

Hi John, I've spoken with the SIP Trunk provider today and they have sent over a copy of their call log (where I have been testing) They have said the calls are being cancelled or given a Channel Unavailable message. I won't rule out any cause yet, however from the providers side all the calls...

Thanks for the advice, i'll check with them and see if they can have a closer inspection. 3CX is showing them as registered and connected and I can successfully make calls out. Once i've had a response from them i'll feedback either way.

hi leejor, Sorry, no 99% of calls don't appear to be reaching a destination, none of the sets are ringing (Physical, App or Windows App). There is no entry into any 3CX log showing anything related to the silent calls, successful calls are however logged correctly. There are 3 Separate trunks...

Hi, I have 3CX up and running on the latest version (16.0.5.622) and since the system updated automatically to this version I am now experiencing issues with external calls. If someone tries to call any of the 3 numbers attached to the PBX 9/10 times the caller hears nothing, complete silence...

I'm curious to know if its possible to make phones available again once you complete a call? For example: You're on the phone to someone, then another call comes in and there is no one else to answer this, you complete the call you are currently in to answer the incoming call. Your phone should...