how configure 3cx on premise server for interal office calling only

[batinz]

Hi All,

I am new to voip and recently assigned a task to deploy a call system for internal office calls only. means 6 to 8 users need to dial each other locally using soft phone.
can anyone here plz guide me how can i accomplish this?

 

[leejor]

Just don't provision any outbound trunks (which is the starting default), or block the use of any existing trunks by restricting access in the outbound rules. There is also an option, in the extension settings to block outside calls. The PBX will still require an internet connection.

 

[batinz]

@leejor thank u so much for your help. can you please tell me any article specific regarding configurations?

 

[cobaltit]

Installing & Managing 3CX

Just don't do the part involving adding a SIP trunk or call routing.