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GABD-000038 OfficeServ 7200 System Description...
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This manual is proprietary to SAMSUNG Electronics Co., Ltd. and is protected by copyright. No information contained herein may be copied, translated, transcribed or duplicated for any commercial purposes or disclosed to the third party in any form without the prior written consent of SAMSUNG Electronics Co., Ltd.
CHAPTER 2. Hardware of the OfficeServ 7200 This chapter describes the hardware feature, cabinet configuration, board function, and board pattern of OfficeServ 7200. In addition, this chapter also describes various terminals, wireless LAN equipments, and supplementary equipments, which are used by connecting to OfficeServ 7200.
11. 2003. Original 05. 2005. - Modifying the brand name (Before: OfficeServ SME, After: OfficeServ 7200) - Modifying edit format (Deleting ED at page header) - Modifying cover page design and overall edit format and improving sentence expression - Introduction: Modifying the related documents...
Purpose ..............................I Document Content and Organization ....................... I Conventions ............................... II Reference ..............................II Revision History ............................III CHAPTER 1. Introduction to the OfficeServ 7200 Introduction to the System ....................1-1 1.1.1 Major Functions ........................1-1 1.1.2 System Architecture ......................... 1-3 Interfaces ..........................
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2.6.2 External Units ......................... 2-63 2.6.3 Loud Bell ..........................2-63 2.6.4 Common Bell .......................... 2-63 CHAPTER 3. Specifications of the OfficeServ 7200 System Capacity ........................3-1 3.1.1 Trunk Line Capacity ......................... 3-5 3.1.2 Station (Subscriber) Line Capacity ..................3-6 Electrical Specifications ......................3-7 3.2.1...
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OfficeServ 7200 System Description VoIP Functions ........................4-3 4.2.1 VoIP Network ..........................4-3 4.2.2 VoIP Trunk Line Interface ......................4-3 4.2.3 User Registration ........................4-3 4.2.4 SIP Phone Interface ......................... 4-3 4.2.5 Call Log ............................. 4-4 4.2.6 Forward Busy ........................... 4-4 4.2.7...
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Error! Use the Home tab to apply 제목 7,제목 7_목차 to the text that you want to appear here. LIST OF FIGURES Figure 1.1 Service Structure of the OfficeServ 7200 with MP20 ..........1-3 Figure 1.2 Service Structure of the OfficeServ 7200 with MP20S .......... 1-4 Figure 1.3 Interfaces Between the VoIP Components ............
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Figure 2.37 SMT-W5100 ...................... 2-62 Figure 3.1 Trunk Line Loop Start Signaling ................3-7 Figure 3.2 External Rectifier ....................3-15 Figure 3.3 Cabinet Configuration of the OfficeServ 7200 ............. 3-19 LIST OF TABLES Table 1.1 Interfaces between the Sub-Modules..............1-6 Table 2.1 Boards that is available to mount in slots ..............
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Table 3.22 System Ring Cycles .................... 3-16 Table 3.23 Cycles of the System Tones ................3-17 Table 3.24 OfficeServ 7200 Compatible Terminals ............... 3-18 Table 3.25 OfficeServ 7000 Series Port Number ..............3-20 Table 3.26 OfficeServ Solution Port Number ................ 3-22...
The OfficeServ 7200 is a communication device, which is the most suitable for small offices where less than 50 to 100 subscriber lines are used. Also, the OfficeServ 7200 allows the users to receive voice, data, and Internet services, which means that the OfficeServ 7200 makes voice calls, and sends/receives data using data networks.
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The OfficeServ 7200 uses an Access Point (AP), which supports handoff and QoS. Because the OfficeServ 7200 uses a wireless LAN base station, it allows the users to make wire/wireless voice/data communications or access the Internet without establishing the LAN.
OfficeServ 7200 System Description 1.1.2 System Architecture The OfficeServ 7200 with MP20 is configured with a basic cabinet and expansion cabinet mounted in a 19-inch rack. The Main Control Processor (MP20) is installed into the basic cabinet and manages the entire OfficeServ 7200. It performs switching, processes signals, or manages the phones.
Mobile Station Laptop (SMT-W5100) Figure 1.2 Service Structure of the OfficeServ 7200 with MP20S Voice Trunk Line Part The voice trunk line part is configured with digital trunk lines and analogue trunk lines. The TEPRI modules interface the E1, T1, or PRI digital trunk lines and send/receive voice data through the trunk lines.
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SVMi-20E provides the voice recording, AA, and E-mail send function to 12 users at the same time by one SVMi-20E per system, as the voice mail process board of the built-in type. Configuration of the Application The OfficeServ 7200 provides the application software below: The OfficeServ Solution and OfficeServ Admin have separate servers. ...
CHAPTER 1. Error! Use the Home tab to apply 제목 1,장 제목 1 to the text that you want to appear here. 1.2 Interfaces This section describes the interfaces between the sub-modules of the OfficeServ 7200 and the ones between the VoIP elements.
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OfficeServ 7200 System Description Table 1.1 Interfaces between the Sub-Modules (Continued) Type Classification Interface Interface between the call Physical Connection 100 BASE-T Ethernet server and SIP server Signal Processing Access Protocol User Agent (UA) to UA Interface between the call...
CHAPTER 1. Error! Use the Home tab to apply 제목 1,장 제목 1 to the text that you want to appear here. 1.2.2 Interfaces between the VoIP Elements The OfficeServ 7200 provides a variety of VoIP interfaces below: VoIP networking ...
OfficeServ 7200 System Description 1.3 Programming There are three methods for programming in OfficeServ 7200. One is using the Man Machine Communication (MMC) program, another is using the Installation Tool, and the other is using Web Management. Using Web Management is only available for OfficeServ 7200 with MP20S.
2.1 Hardware Features The features of the OfficeServ 7200 hardware are described below: Reliability The materials and parts used for the OfficeServ 7200 hardware are firm and stable. Also, they meet with the mechanical and electrical features needed for a communication system.
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Fire Resistance and Heat Processing The OfficeServ 7200 hardware is made of fire-resistant materials and parts to protect the hardware from fire. The OfficeServ 7200 hardware is designed not to affect the system performance due to heat generated from inside of the system. ...
Basic Cabinet Figure 2.1 Cabinet Configuration of the OfficeServ 7200 with MP20 The OfficeServ 7200 with MP20S is configured with only a basic cabinet mounted on a 19- inch rack. The Main Control Processor (MP20S) is installed into the basic cabinet, manages the basic cabinet of OfficeServ 7200 and performs switching, processes signals, and manages the subscriber terminals.
SLOT 4 SLOT 5 Rear Side of Basic Cabinet ⑤ ⑦ Figure 2.2 Cabinet Configuration of the OfficeServ 7200 with MP20S Rear Side Configuration of Cabinet Function Ground Lug Lug for grounding system communication External Rectifier Socket External DC power supply socket for PoE.
OfficeServ 7200 System Description 2.2.1 Slot Configuration There are 6 slots that are available for mounting boards in each of the basic cabinet and extension cabinet. The following table shows mountable boards for each slot of the cabinet. Table 2.1 Boards that is available to mount in slots...
OfficeServ 7200 System Description 2.3 Functional Boards The following table shows categorized boards according to the functions and control boards. Table 2.2 Functional Boards Control Function Boards Board Main Control Part MP20 - Basic cabinet: MP20 (Option Board: RCM2, MIS, CRM,...
2.3.1 Control Boards This section describes the configuration and functions of the MP20 and MP20S, which are the main control boards that control all the functions of the OfficeServ 7200, and those of the LCP, which is the minor control board.
MP20 has a 2-Wire Full Duplex modem and can commonly use it with OfficeServ 500 system. Be careful with the direction of the MODEM when mounting/dismounting on the MP20. The MODEM operates in OfficeServ 7200 via V.23 interface and uses a modem chip for Central Office, which can perform Pulse Code Modulation (PCM) highway interface.
MP20S. The MODEM operates in OfficeServ 7200 via V.24 interface and uses a modem chip for Central Office, which can perform Pulse Code Modulation (PCM) highway interface. In addition, the MODEM supports V.90 protocol. OfficeServ 7200 controls the MODEM via serial communication using standard AT commands.
OfficeServ 7200 System Description Front View of MP20S The front view of the MP20S main control part is as shown in the figure below. MISC RUN LAN Media Card MP20S Figure 2.4 Front View of the MP20S The components on the front panel of the MP20S have the functions below: Table 2.8 Ports and LEDs of the MP20S...
OfficeServ 7200 System Description 2.3.2 Voice Trunk Line Board This section describes the boards that offer the voice service of trunk lines. 2.3.2.1 TEPRIa The T1/E1 Primary Rate Interface advanced (TEPRIa) uses a PCB identical to the OfficeServ 7400‟s TEPRI2 board.
OfficeServ 7200 System Description 2.3.2.2 UNI UNI can be used as a voice trunk line board or voice subscriber line board depending on the mounted option board. If 4TRM and 2BRM are mounted on UNI, it operates as a voice trunk line board.
OfficeServ 7200 System Description If 4SLM and 4DLM are mounted, UNI operates as a voice subscriber board. 4DLM 4SLM Figure 2.9 Option Boards of the UNI (Voice Subscriber) Description of 4TRM/8TRK 4TRM supports only DTMF dialing, but does not support for Dial Pulse dialing.
OfficeServ 7200 System Description Specification The 8TRK2 provides 8 trunk line ports. Front View of the 8TRK2 The front view of the 8TRK2 is shown in the figure below 8TRK2 Figure 2.11 Front View of the 8TRK2 The components on the front panel of the 8TRK2 have the functions below: Table 2.14 Ports of the 8TRK2...
OfficeServ 7200 System Description Specification The 4HTRK provides 4 trunk line ports. Front View of the 4HTRK The front view of the 4HTRK is shown in the figure below. 4HTRK Figure 2.13 Front View of the 4HTRK The components on the front panel of the 4HTRK have the functions below: Table 2.16 Ports and LEDs of the 4HTRK...
Specification The 2BRM provides four B channel and two D channel. The maximum number of 2BRMs that can be installed onto an OfficeServ 7200 MP20S is four, and two UNIs are required for the maximum configuration. And this UNI has to be inserted in universal slot number 1 or 2 (Slot 1, Slot 2 only).
OfficeServ 7200 System Description Board View The 4TRM can be mounted as a daughter board on the UNI. There is no separate line connection part within the 4TRM. It is connected to an external line through the RJ-45 connector on the line connection part, located at the left side of the system.
OfficeServ 7200 System Description 2.3.3.2 8DLI The 8DLI has 8-ports for digital stations. It interworks with the Samsung digital phones via the station to make a voice communication. Specifications The specifications of the 8DLI are as follows: 8 station ports and 2B + D (two voice channels and one signal channel) provided ...
OfficeServ 7200 System Description 2.3.3.4 16SLI2/16MWSLI 16SLI2 provides the voice communication function interworking with the general telephone through the extension line as the board that provides the analog extension 16 ports. The 16MWSLI is the board that the message waiting function on the function of the 16SLI2.
P1~16 General Telephone Extension Port 2.3.3.5 16DLI2 16DLI2 provides the voice communication function interworking with Samsung Digital Telephone through the extension line as the board to provide the digital extension 16 ports. Specification The specification of 16DLI2 is as follows: ...
OfficeServ 7200 System Description 2.3.3.6 4DLM The 4 Port DLI Module (4DLM) provides four (4) digital station ports. It interoperates with a Samsung digital phone through a station to provide the voice communication function. Specification The specification of the 4DLM is as follows: ...
OfficeServ 7200 System Description 2.3.3.8 4SLM The 4 Port SLI Module (4SLM) is mounted on UNI and is used to process regular phone connections. Key Functions The key functions of the 4SLM are as follows: 20 Hz ring generation ...
Intranet. 2.3.4.1 WIM The WAN Interface Module (WIM) allows the OfficeServ 7200 to transmit/receive data to/from the external Internet. It offers a variety of external interfaces and ports for connecting with the internal network. One WIM board provides applications and a variety of external interfaces.
OfficeServ 7200 System Description Front View of WIM The front view of the WIM is shown in the figure below: SERIAL SERIAL P1 Figure 2.25 Front View of the WIM The components on the front panel of the WIM have the functions below: Table 2.28 Ports and LEDs of the WIM...
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OfficeServ 7200 System Description 2.3.4.3 PLIM PoE LAN Interface Module (PLIM) provides the 10/100 BASE-T interface as the board to transmit/receive the data from intranet, and also provides the Power over Ethernet (PoE) function to supply the 48 V power to externals and also provides a simple switching function.
Using the shunt pin (J1, J2, J3), the PLIM2 can select from the internal PSU (connect shunt pin no. 1-2) and the external rectifier (connect shunt pin no. 2-3). Refer to the ‘OfficeServ 7200 Installation Manual’ for more details concerning the connection of the shunt pin.
OfficeServ 7200 System Description Front View of the PLIM2 The front view of the PLIM2 is shown in the figure below. PLIM2 Figure 2.28 Front View of the PLIM2 The components on the front panel of the PLIM2 have the functions below: Table 2.31 Ports and LEDs of the PLIM2...
OfficeServ 7200 System Description The components on the front panel of the GPLIMT have the functions below: Table 2.32 Ports and LEDs of the GPLIMT Ports, LEDs Functions P1~12 Ports that connect to the 10/100BASE-T Ethernet P13, P14 Ports that connect to the 10/100/1000 BASE-TX GbE (Gigabit Ethernet) Left LED of P1~6 First LED: Indicates if the P1~6’s link is operating...
OfficeServ 7200 System Description Table 2.33 Ports and LEDs of the GSIMT Ports, LEDs Functions P1~12 Ports that connect to the 10/100/1000 BASE-TX GbE (Gigabit Ethernet) Port that connects to the RS-232 Port that connects to the LAN for debugging purpose...
OfficeServ 7200 System Description 2.3.5.2 OAS (OfficeServ Application Server) The OAS converts the voice into data and transmits the data through the data network. It supports a maximum of 32 channels and provides the G.729, G.723, G.711 voice compression/decompression function. It also provides a T.38 specification compliant Fax function.
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Register and setup function for guidance and greetings for the conference System Capacity OfficeServ 7200 provides voice conference with maximally 16 members when the CNF24 is mounted on 16 channel slot. The number of the CNF24 is restricted as follows.
Because SVMi-20E is designed as the type of modular, it is easy to add voice ports if necessary. Only one SVMi-20E is available to be installed in the OfficeServ 7200, and it is available to use by connecting other voice mail system to SVMi-20E. Specification The specification of SVMi-20E is as follows: ...
2.4.1 Regular Phones The regular phones used for voice calls are connected to the ports of the 8SLI2/16SLI2/ 8COMBO2/16MWSLI mounted on the Universal slot of the OfficeServ 7200. 2.4.2 Digital Phones Digital phone are used for voice calls or data transmission and connected to the ports of the 8DLI/16DLI2/8COMBO2 mounted on the Universal slot of the OfficeServ 7200.
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OfficeServ 7200 System Description 21-Button 2-Line LCD IP Keyset (ITP-5021D) 48-character display (2 24) LCD with 3 associated soft keys and scroll key Supports data and voice transfer using Internet Protocol 21 programmable keys Navigation keys for easy use of keyset functions ...
OfficeServ 7200 System Description 2.4.6 Door Phone and Door Phone Interface Module (DPIM) The DPIM adapts any DLI circuit for use with the door phone unit. The unit is commonly used to request entry through locked doors (interior or exterior) or as a room monitoring box.
OfficeServ 7200 is installed. 2.6.1 On Hold/Background Sound Source The OfficeServ 7200 is connected with cassettes or radios in addition to the basic tone provided by the system or internal sound source to allow the subscribers to listen to melodies other than ones specified to the subscribers.
3.1 System Capacity Up to 180 lines can be installed and operated in the OfficeServ 7200, and the line ratio of the station and trunk line can be adjusted within the capacity limit depending on the user‟s needs. Table 3.1 below shows the maximum line capacity of the OfficeServ 7200: Below are the system configuration and the capacities of the system.
14 (CRM 1) 16 (IRM 1) In OfficeServ 7200 with MP20S, the total number of MFR & Mobex is fixed at 14. The minimum of each channels are 6, and can be expanded to 8. If the user wants to use 8 MFR channels, the Mobex channels will be 6 channels, and vice versa.
- * The capacity for the PCM trunk is considered that two TEPRIa are used. So, in case of U.S.A. the PCM trunk number is 48, and the others are 60. - ** In OfficeServ 7200 with MP20S, the IP-UMS, IVR and ACD features are not supported.
MP20S, the maximum line capacity is basic cabinet column 3.1.1 Trunk Line Capacity The maximum trunk line capacity of the OfficeServ 7200 is based on its configuration and is shown in the table below: Table 3.6 Trunk Line Capacity...
3.1.2 Station (Subscriber) Line Capacity The maximum station line capacity for analog phones and digital phones and IP phones in the OfficeServ 7200 is based on its configuration and is shown in the table below: Table 3.7 Station Line Capacity...
OfficeServ 7200 System Description 3.2 Electrical Specifications 3.2.1 Signal Specifications The signal processing protocol is used for interfacing messages between the trunk lines/stations and system. Also, the signal processing protocol refers to the method for providing status information. 3.2.1.1 Signaling Type of the Trunk Line...
OfficeServ 7200 System Description The electrical characteristics of the ISDN (PRI) interface comply with the ITU I.431 and ETS 300 011 standards. Table 3.12 Electrical Characteristics of the PRI Trunk Line Category Specification Transmission speed 2048 Kbits/s ±50 ppm Code...
UTP Cable Type The UTP cable is divided into Straight-through UTP cable and Crossover UTP cable. The Straight-through UTP cable is used to connect the OfficeServ 7200’s LIM/PLIM module with other modules (MP20, MGI16, WIM). The Crossover UTP cable is used to connect between the LIM/PLIM modules only.
UTP Cables are classified into Straight-through UTP cable and Crossover UTP cable. The Straight-through UTP cable is used for connecting the LIM or PLIM module of OfficeServ 7200 to other modules (MP20, MGI16, WIM). The Crossover UTP cable is used for connecting only LIM (PLIM) module to LIM (PLIM) module.
OfficeServ 7200 System Description 3.2.1.4 Signaling Type of the Station Dial Pulse Signaling Type Ratio-10 Pulse Per Second (PPS) Make/Break Ratio (M/B ratio)-33%: 66% (It can be adjusted by the software.) The minimum signaling time between digits-20 ms (It can be adjusted by the software.)
3.3 Power Specifications 3.3.1 Power Supply Unit The Power Supply Unit (PSU) is installed in the cabinet of the OfficeServ 7200. The PSU supplies the power of -48 V DC received from the external power supply unit to each board.
External Rectifier is an external power resource to supply the power to IP telephone and SMT-R2000 connected the OfficeServ 7200 when using the PLIM. Because the internal power capacity is not enough, 48 V power source is supplied to the external equipment by connecting the supplementary power source.
The ON/OFF cycle can be adjusted by changing the values of the system database. 3.4.2 Ring The output voltage and frequency of the ring signals in the OfficeServ 7200 are as follows: Output voltage: 75 Vrms Square Wave (Built in SLI) 75 Vrms External Sinewave (Italy, Australia) ...
OfficeServ 7200 System Description 3.4.3 Tones Table 3.23 Cycles of the System Tones Tone ON/OFF Cycle Dial tone 1000/250 ms Busy Tone 500/500 ms Do Not Disturb tone 250/250 ms Ring Back tone 1000/2000 ms Call Park tone Continuous Confirmation/Caution/Barge-In tone...
CHAPTER 3. Error! Use the Home tab to apply 제목 1,장 제목 1 to the text that you want to appear here. 3.5 Available Terminals The terminals available to the OfficeServ 7200 are shown in the table below: Table 3.24 OfficeServ 7200 Compatible Terminals...
OfficeServ 7200 System Description 3.6 Equipment Specifications The OfficeServ 7200 consists of the two cabinets shown in the figure below: Expansion Cabinet Basic Cabinet Figure 3.3 Cabinet Configuration of the OfficeServ 7200 When the OfficeServ 7200 consists of one cabinet (basic cabinet) 440 (W) ×...
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OfficeServ 7200 System Description Table 3.25 OfficeServ 7000 Series Port Number (Continued) Category Service Type Protocol Port Number Remarks System Periodic UCD 5105 Periodic UCD printout to IP connection Hotel/Motel Report 5106 Hotel Report to IP connection BD-PMS 5107, 5109...
CHAPTER 4. Functions of the OfficeServ 7200 This chapter describes the functions of the OfficeServ 7200 related to calls, VoIP, data, UMS, and web/system management. 4.1 Call Functions The OfficeServ 7200 processes the station calls, trunk line calls, application calls, or various signals through the PSTN and VoIP networking.
OfficeServ 7200. Time Synchronization In the OfficeServ 7200, the call server and the data server interconnect to each other and synchronize their time. This function is only available between the OfficeServ 7200‟s call server and data server.
4.2.4 SIP Phone Interface The OfficeServ 7200 provides a functionality to use the standard SIP phone in a local line. Once the external standard SIP phone is registered as an OfficeServ 7200 phone, it can use the allocated OfficeServ 7200‟s phone number to provide call processing services between the SIP phones, between the SIP phone and the digital phone, and between the SIP phone and the PSTN trunk line.
CHAPTER 4. Error! Use the Home tab to apply 제목 1,장 제목 1 to the text that you want to appear here. Standard SIP Phone Additional Call Processing The following additional local line services are available from the standard SIP phone registered to the OfficeServ 7200. Call Hold/Resume ...
OfficeServ 7200 System Description 4.3 Data Functions The OfficeServ 7200 functions as a router, switch, performs security functions, or serves as a data network application or data access interface. 4.3.1 Switches Managed/Unmanaged Switch The switch is operated as a managed switch if the WIM is mounted on the Slot1 and the LIM/PLIM is mounted on the Slot 2.
WAN Interface (Ethernet, PPPoE, DHCP Client) The OfficeServ 7200 accesses the Internet through the P1~P4 interface by using the PPPoE and DHCP client protocols. V.35 Interface (PPP, HDLC, Frame Relay) The OfficeServ 7200 accesses the Internet through the V.35 serial interface in a transfer...
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The VRRP is a Hot Standby function securing the end-host‟s communication path via the identical Ethernet‟s backup router in case the main router stops functioning properly. Routing Protocol The OfficeServ 7200 supports the routing information-exchanging protocol to react on the network environmental change and to effectively process the routing. ...
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The data server operates as a VPN client and establishes a VPN channel to a remote VPN equipment to enable data transmission. This mode provides the interface function between each OfficeServ 7200 based on the IPSec and the 3DES and RSA coding function.
4.3.4 Data Applications DHCP The OfficeServ 7200 can assign the IP address as a DHCP server. When using the DHCP server in another subnet, the OfficeServ 7200 operates as a DHCP relay. The IP addresses of the IP equipments connected to the OfficeServ 7200 can be easily managed.
OfficeServ 7200 System Description 4.4 System Management The OfficeServ 7200 provides a user interface that manages various functional blocks of the system. The OfficeServ 7200 also monitors and collects the operational status of the functional blocks in the system. 4.4.1 Web Management User can manage Telephone and VM/AA server configuration via the embedded web service through web browser.
The user can search the KMMC number and title 4.5 NMS Management Function The OfficeServ 7200 (only MP20) provides a user interface that works with the OfficeServ NMS through SNMP Agent. The OfficeServ NMS is a Network Management System (NMS) providing the OfficeServ system‟s operation and maintenance function.
OfficeServ 7200 System Description ANNEX A. Open Source Announcement Some software components of this product incorporate source code covered under the GNU General Public License (GPL), the GNU Lesser General Public License (LGPL) and BSD License. Acknowledgement To obtain the source code covered under those Licenses, please visit http://www.samsungnetwork.com/Home/opensource Below is the list of components covered under GNU General Public License, the GNU Lesser General Public License and BSD License.
OfficeServ 7200 System Description 8) If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded.
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OfficeServ 7200 System Description But when you distribute the same sections as part of a whole which is a work based on the Library, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it.
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OfficeServ 7200 System Description BSD License Copyright (c) 2000-2003 Intel Corporation All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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OfficeServ 7200 System Description ABBREVIATION Auto Attendant Automatic Call Distribution Application Level Gateway Answering Machine Emulation Alternate Mark Inversion Add On Module Access Point APLL Analog Phase Locked Loop ASIC Application Specific Integrated Circuit American Wire Gauge Basic Rate Interface...
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OfficeServ 7200 System Description Keyset Daughter Board Local Area Network Liquid Crystal Display Local Control Processor Least Cost Routing Light Emitting Diode LAN Interface Module MP20 Main control Processor 20 MP20S Main control Processor 20 for Single cabinet Media Gate Interface...