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Panasonic KX-TDA100 Hybrid IP-PBX Telephone System, Up to 96 ports, Up to 64 CO's, Phones (wired) Up to 64 phones, Telephone Compatibility Works with Panasonic KX-T7000KX-T7400, 7600, 7720, 7731, 7750
Features Up to 192 ports, Up to 128 CO's and Up to 128 phone capability; Multi-Cell Wireless; 1 port Ethernet (10 BaseT) for CTI/Programming
Panasonic KX-TDA50 Digital Hybrid IP-PBX Telephone System, Up to 40 Ports, Works with all of the Panasonic KX-T7400, 7600, 7700, 7800 wired & wireless series and SLTs
The KX-TDA50G is a KX-TDA50 with built in Caller ID
Hybrid IP-PBX System
Multi-Cell Wireless Compatibility
Up to 1024 Ports
Universal Call Distribution
Centralized Voicemail
Station to Station Messaging
Unattended Conference Call
Converged IP-PBX System with up to 128 Extensions and 128 COs
Converged IP-PBX System with up to 256 Extensions and 128 COs