Hosted multicast calls with 3CX

• Ben Grabau
• 2025-11-06
• Voice

Multicast RTP is a great way to page multiple phones at once. 3CX supports multicast groups for on-premises installations, but when you’re cloud hosted and using a 3CX session border controller (SBC), SIP multicast is not available. So it would seem the only option is unicast ring groups, right? Unfortunately, 3CX’s license model is based…