The Panasonic KX-NS300 Smart Hybrid PBX is a cost effective legacy and IP communication system for small and medium sized companies that can be flexibly configured and expanded according to your needs. The KX-NS300 has advanced features and starts from 6 analogue trunks and 18 extensions, up to 288 extensions with an Expansion Unit. The KX-NS300 is also a unified communication system which has rich IP features such as mobile linking, integrated voice mail and e-mail, instant messaging (chat), and presence information. It can also use built-in applications, such as a call centre solution, mobile solution, and voice mail system, to provide more efficient work and increased customer satisfaction. Unique Features: Auto-attendant / Voice Mail System - The system built-in with 2 channels DISA / Auto-attendant and 2 hours basic voice mail function. It is expandable up to 24 channels and 400 hours. This feature auto-answer incoming calls and transfer to desired extension without operator. Caller ID - This feature display caller's telephone number on LCD display digital phone and Panasonic KX-T7705 and KX-T7703 analog caller ID phone. SIP Trunk - This feature enable KX-NS300 connect to any SIP trunk provider to enjoy lower call rate IP Phone - This system support up to 30 IP Phones Communication Assistant (CA) - It is a PC based application suite with powerful point and click telephony and screem based presence, availability, and a variety of collaboration tools. Extra Device Port - The maximum capacity in one chassis is 12 CO trunks and 34 Extensions (18 Digital & 16 Analog). With extra device port on digital phone, the system can support upto 54 Extensions (36 Digital & 16 Analog) without adding expansion chassis.