Supporting around 256 concurrent calls with 800 users and built using the technology of the open-platform software PBX from 3CX. The Call4tel NX256 is making installation and management of your phone system easier than ever.

Specially designed for 3CX to offer a complete Unified Communications solution with advanced features right out of the box. Supporting around 32 concurrent calls with 200 users and built using the technology of the open-platform software PBX from 3CX. The Call4tel Nx32 is making installation and management of your phone system easier than ever.

Specially designed for 3CX to offer a complete Unified Communications solution with advanced features right out of the box. Supporting around 128 concurrent calls with 500 users and built using the technology of the open-platform software PBX from 3CX.

3CX includes the 3CX Session Border Controller (SBC) which allows easier bridging of remote 3CX instances and connection of remote extensions. The 3CX SBC combines all SIP (signaling) and RTP (media) VoIP Packets from one location and delivers them to and from another location (typically the PBX Server) using a custom TCP protocol.

3CX includes the 3CX Session Border Controller (SBC) which allows easier bridging of remote 3CX instances and connection of remote extensions. The 3CX SBC combines all SIP (signaling) and RTP (media) VoIP Packets from one location and delivers them to and from another location (typically the PBX Server) using a custom TCP protocol.

3CX includes the 3CX Session Border Controller (SBC) which allows easier bridging of remote 3CX instances and connection of remote extensions. The 3CX SBC combines all SIP (signaling) and RTP (media) VoIP Packets from one location and delivers them to and from another location (typically the PBX Server) using a custom TCP protocol.

Failover SBC or Dual 3CX failover Bracket

 PSU