IP-PBX with Universal Connectivity and Mobile Extensions • Universal Slots: 6 • Max. IP Users: 100 • Max. TDM Ports: 48 • Built-in Ports: 5 IP Users*, 4 VoIP & 4 VMS Note: • All ETERNITY PENX6SAC with SARVAM UCS SMB (FACTORY LOADED) • Free IP USER can only be used when NX DBM VOCODER64 is installed • Free VoIP Channel and VMS Channel can be used with NX DBM VOCODER64 & NX DBM VMS64, respectively.