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Tag: STUN

Configuring External Extensions with 3CX Phone System

Posted on 13/02/201208/03/2023 by Phil

Connecting an External Extension to 3CX PhoneSystem is often requested, and can be extremely useful for linking small remote offices and home workers. Here we get a shot at using other phones as External Extensions. Note: If you are looking for instructions to connect a SIP Hardphone using the 3CX Tunnel Protocol via the 3CX SIP…

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