OfficeServ 7400 is the most proper communication product for mid/large-sized offices and provides the complex function including voice, data and internet functions. OfficeServ 7400, also, provides the data exchange function using data network as well as the voice call function. Users can enjoy various phone functions and applications at the various platforms such as digital phones, IP phones, mobile phones, PCs and servers.

System Architecture
OfficeServ 7400 is configured with the basic cabinet and expansion cabinet mounted on the 19-inch rack as well as OfficeServ feature server mounted on the external Linux server.

Main Functions
Main functions and features of OfficeServ 7400 are as follows:
Integrated Communication Environment OfficeServ 7400 provides the data transmission service by using Local Area Network(LAN), Wide Area Network(WAN) modules as well as the voice call function. Users can conveniently communicate by using wireless/wired integration platforms(Telephones, PCs, Wireless Phones and peripherals) function.

Next-generation Platform
OfficeServ 7400 provides a genuine IP solution integrating mail server, Session Initiation Protocol(SIP) server, Voice over IP Unified Messaging Service VoIP UMS functions via IPbased

feature server.
The IP-based feature server is a Linux platform that can continuously add the successive feature server module.

High Quality IP Phone Function
OfficeServ 7400 separates the priority of data packets and voice packets from grouping so that it guarantees the following Quality of Service(QoS) in voice call:
 Layer 2 QoS: Priority Processing(802.1p), VLAN(802.1q)
 Layer 3 QoS: Class Based Queuing(CBQ), Real-time Transmission Protocol (RTP)
Priority Queuing, On-Demand Bandwidth management for WAN.