• V20: 3CX Re-engineered. Get V20 for increased security, better call management, a new admin console and Windows softphone. Learn More.

Search results

  1. No Incoming Audio

    I have a SPA-921 that is on the outside of the 3CX network. I can hear the outgoing audio on my other phone with no problem. The SIP phone will not recieve any audio. I have checked the Firewall and ports 5060 7000-7499 9000-9015 3478 are all open on both the external and the 3CX...
Get 3CX - Absolutely Free!

Link up your team and customers Phone System Live Chat Video Conferencing

Hosted or Self-managed. Up to 10 users free forever. No credit card. Try risk free.

3CX
A 3CX Account with that email already exists. You will be redirected to the Customer Portal to sign in or reset your password if you've forgotten it.