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OfficeServ 7400 General Description

© Samsung Business Communications

3-9

y

The electrical characteristics of the 1000 BASE-TX interface, which comply with the
IEEE802.3ab standards, are shown in the table below:

Table 3.15 Electrical Characteristics of LAN Interface (1000 BASE-TX)

Categories

Specifications

Transmission speed

1000 Mbps

Transmission code

8B1Q4
The 8-bit transmission data are converted into 9-bit transmission data via
the additional treatment of scramble, error detection bit, and then are
mapped into the transmission signals of 4 teams with 5 levels, and are
randomized into each pair of transmission signals to be transmitted.

Access control method

CSMA/CD

Transmission media

UTP CAT5 (Maximum transmission distance 100 m)

Number of UTP pairs

4 pairs

Characteristic resistance

100

Ω

Cable thickness

Diameter 0.51 mm (24 AWG), External diameter 6 mm

y

The electrical characteristics of the 1000 BASE-SX/LX interface, which comply with
the IEEE802.3z standards, are shown in the table below:

Table 3.16 Electrical Characteristics of LAN Interface (1000 BASE-FX)

Categories

Specifications

Transmission speed

1000 Mps

Transmission code

8B/10B Data Encoding
The 8-bit (8B) data entered from the upper layer of the MAC Part are
handled in one nibble to be converted into 10-bit (10B) signals at the
physical layer. Then each nibble of the converted data is transmitted.
The transmission speed after the conversion into 8B/10B is 1250
Mbps.

Access control method

CSMA/CD

Transmission media

SX: Multimode Optical Fibre (MMF)
LX: Multimode Optical Fibre/Single mode Optical Fibre (SMF)

Number of Optical
Fibres

2 pairs

Maximum transmission
distance

SX: Maximum 550 m
LX: Maximum 5 km

Cable thickness

Diameter 0.51 mm (24 AWG), External diameter 6 mm

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Содержание OfficeServ 7400

Страница 1: ...OfficeServ 7400 General Description Enterprise IP Solutions...

Страница 2: ...claimer Samsung Business Communications is not responsible for errors or problems arising from customers not installing programming or operating their Samsung systems as described in this manual Copyr...

Страница 3: ...andards EN55022 1998 A1 2000 A2 2003 EN55024 1998 A1 2001 A2 2003 EN61000 3 2 2000 EN61000 3 3 1995 A1 2001 EN60950 1 2001 1st Edition and or EN60950 1 2001 Manufacturer Samsung Electronics Co Ltd 259...

Страница 4: ...em may be provided with the ability to communicate with local computer networks to provide CTI functions and features In this case it is capable of passing information to the computer network via a sp...

Страница 5: ...tions interfaces and programming requirements CHAPTER 2 OfficeServ 7400 Hardware Describes the hardware in detail including chassis and hardware module configurations and functions It also covers stat...

Страница 6: ...the main text but is always preceded by an icon and or a bold title NOTE Indicates additional information as a reference Reference OfficeServ 7400 Installation Guide Describes the conditions necessar...

Страница 7: ...1 1 1 2 System Architecture 1 3 1 2 Interfaces 1 6 1 2 1 Interfaces between Sub modules 1 6 1 2 2 Interfaces between VoIP Components 1 8 1 3 Programming 1 9 CHAPTER 2 OfficeServ 7400 Hardware 2 1 2 1...

Страница 8: ...dditional Devices 2 46 2 6 1 On Hold Background Sound Source 2 46 2 6 2 External Speakers 2 46 2 6 3 Loud Bell 2 46 2 6 4 Common Bell 2 46 2 6 5 OfficeServ Manager OSM 2 46 2 6 6 SMDR 2 47 2 6 7 CTI 2...

Страница 9: ...Interface 4 2 4 2 Data Server Functions 4 3 4 2 1 Switches 4 3 4 2 2 Routers 4 5 4 2 3 Security 4 7 4 2 4 Data Server Applications Functions 4 8 4 3 UMS Functions 4 10 4 3 1 Auto Attendant 4 10 4 3 2...

Страница 10: ...anel of 8COMBO Module 2 19 Figure 2 10 Front Panel of 16MWSLI Module 2 20 Figure 2 11 Front Panel of 16DLI2 Module 2 21 Figure 2 12 Front Panel of LIM Module 2 22 Figure 2 13 Front Panel of PLIM Modul...

Страница 11: ...nt Panel of 16DLI2 Module 2 21 Table 2 16 Front Panel of LIM Module 2 22 Table 2 17 Front Panel of PLIM Module 2 24 Table 2 18 Front Panel of GPLIM Module 2 25 Table 2 19 Front Panel of GSIM Module 2...

Страница 12: ...Table 3 14 Electrical Characteristics of the LAN Interface 100 Base Tx 3 8 Table 3 15 Electrical Characteristics of LAN Interface 1000 BASE TX 3 9 Table 3 16 Electrical Characteristics of LAN Interfac...

Страница 13: ...s of the keyphone system are Integrated Communication Environment OfficeServ 7400 provides data transmission using the Local Area Network LAN Wide Area Network WAN modules and the voice call function...

Страница 14: ...Serv 7400 converts text messages such as e mails to voice messages and allows users to listen to the messages through phones Mail Server and Instant Messaging OfficeServ 7400 integrates voice messages...

Страница 15: ...as MP40 LP40 TEPRI MGI DLI SLI Trunk y Data Server Module for data services GWIM GSIM GLIMP PLIM LIM y Feature Server Linux application for IP voice services such as OfficeServ VoIP UMS y OfficeServ A...

Страница 16: ...BO a combination of analogue and digital stations Data Transmission Component The data module is configured with the GWIM a WAN interface module and the LIM PLIM GLIMP GSIM LAN interface modules The L...

Страница 17: ...daptor for Subscriber Loop DASL to connect to a wireless AP and sends receives voice to from the phone system and wireless AP The 4WLI module supports up to four APs WBS24 Combo and the OfficeServ 740...

Страница 18: ...Type SFP Small Form factor Pluggable Connector Physical Access IEEE 802 3z 1000 BASE SX LX IEEE 802 3ab 1000 BASE TX V 35 T1 E1 HSSI T3 E3 Connector Type SFP Serial 26 pin connector non standard cable...

Страница 19: ...ge IPC Physical Access 100 BASE TX Ethernet Signal Process TCP IP Interface between Call Server and System Manager Access Protocol TCP UDP IPC Physical Access 100 BASE TX Ethernet Signal Process TCP I...

Страница 20: ...SIP User Agent UA y IP Telephone For signal processing the interface standards between VoIP components are as follows y Proprietary TCP Inter Processor Communication IPC y SIP UA to UA Figure 1 2 Int...

Страница 21: ...required for technician level programming and administrator level programming but not for subscriber level programming Technician Level Programming Programming can be done from any digital display pho...

Страница 22: ...es Safety The materials and components used are robust and satisfy all mechanical and electrical requirements for communication systems y The chassis comply with the industrial standards and are assem...

Страница 23: ...ing y The back of the rack has a grounding hole to which a wrist strap for preventing static electricity can be connected y The hardware is designed to protect electronic devices from damage caused by...

Страница 24: ...rforms switching signal processing and subscriber station management func tions The LP40 the sub control processor module is installed in the basic or expansion chassis it controls various line module...

Страница 25: ...h 10 Battery Switch Switch to supply battery power to the OfficeServ 7400 or charge the battery 2 2 1 Configuration of Slots The basic chassis and expansion chassis each have 12 slots in which modules...

Страница 26: ...is the main control module for all functions of the OfficeServ 7400 and is mounted in slot 3 of the basic chassis The MP40 y performs voice switching and signal processing y controls subscribers stat...

Страница 27: ...t the Modem daughterboard module that is commonly used with the OfficeServ 500 and 100 systems Ensure that the Modem module is cor rectly mounted on the MP40 module y The Modem module operates via a V...

Страница 28: ...ine Width of Data Bus 8 bit Front Panel The front panel of the MP40 module is shown below Figure 2 2 Front Panel of MP40 Module The components on the front panel of the MP40 module have the following...

Страница 29: ...but operating abnormally Blink Green Smart Media is installed and in access mode MOD LED The installed status and operational status of the Modem Off No MODEM installed On Green MODEM installed Blink...

Страница 30: ...ule the location is indicated on the LP40 module y R2 CID Module 2 RCM2 RCM2 detects and generates Caller Identification CID from 14 channels It selects an operation mode detection and generated signa...

Страница 31: ...or program and data storage Data Bus Width 32 bit Capacity 4 MB Flash ROM For data storage Data Bus Width 16 Bit Capacity 512 KB Boot ROM For booting Data Bus Width 8 Bit Rate 2 048 8 192 Mb s Rate Co...

Страница 32: ...Blink Normal status Rx LED Indicates the status related to data receipt in communication with MP40 Off No signal Green Blink Data reception in progress TX LED Indicates the status related to data tran...

Страница 33: ...1 E1 PRI signal processing through programming y A resistance circuit that satisfies both T1 100 and E1 120 y Surge protection International Telecommunication Union ITU standard y Output port protecti...

Страница 34: ...tion On Signal loss generated Off No signal loss generated AIS LED T1 E1 remote alarm generation On Remote alarm generated Off No remote alarm generated L2 LED Layer 2 operation On PRI Layer2 operatio...

Страница 35: ...es both T1 100 and E1 120 y Surge protection International Telecommunication Union ITU standard y Output port protection for line monitors y Jitter function that satisfies ITU T I 431 and G 703 y Sele...

Страница 36: ...remote system switch On When signals are weak or have been damaged Off When signals are received properly SYN1 LED SYN2 LED Indicates the status of frame synchronization with the remote system switch...

Страница 37: ...le 2 10 Front Panel of 4BRI Module Port LED Function Description P1 T to P4 T BRI trunk ports P1 S to P4 S BRI station ports RUN LED On Circuit is connected to this port ACT LED On Circuit is in use o...

Страница 38: ...all information in the RCM2 op tion module by connecting the module to LP40 Specifications The 8TRK voice trunk line module has eight trunk line ports Front View The front panel of the 8TRK module is...

Страница 39: ...oice station modules are as follows y 8DLI Module eight station ports and 2B D 2 voice channel and 1 signal channel pro vided Front Panel The front panel of the 8DLI voice station module is shown belo...

Страница 40: ...cts DTMF dial pulse y Detects on off hook y Generates a tone Specifications The specifications of the 8COMBO voice station module are as follows y Eight analogue station ports y Eight digital station...

Страница 41: ...l pulse y Detects on off hook y Generates a tone y Power Fail Transfer PFT y Message Waiting y Transmitting Polarity Reverse Signal PRS Specifications The 16MWSLI module provides 16 station ports Fron...

Страница 42: ...follows y 16 station ports y 1B D 1 voice channel and 1 signal channel Front Panel of 16DLI2 The front panel of the 16DLI2 module is shown below Figure 2 11 Front Panel of 16DLI2 Module The component...

Страница 43: ...nd full half duplex auto sensing y VLAN for QoS y Switching hub Specifications The LIM data module provides a 16 10 100 BASE T port Front Panel The front panel of the LIM data module is shown below Fi...

Страница 44: ...dule are as follows y 10 100 BASE T and Full Half duplex auto sensing y VLAN for QoS y Switching hub y PoE Setting PLIM Module PLIM can select the internal PSU connecting shunt pins 1 and 2 or externa...

Страница 45: ...s data to from the Intranet It provides 12 x 10 100 BASE T interface ports and 2 x 1000 BASE TX SX LX ports GPLIM functions as a hub for simple switching and provides the VLAN function for supporting...

Страница 46: ...6 First LED Operation of P1 P6 On LED turns green when a link is in operation Blink Active status Second LED 10 100 BASE T operation of P1 P6 Off 10 BASE T in operation On 100 BASE TX in operation Rig...

Страница 47: ...Flow Control 802 3x y Multicasting IGMPv1 v2 DVMRP PIM SM Specifications The specifications of the GSIM data module are as follows y 1000 BASE SX LX TX interface ports Front Panel The front panel of...

Страница 48: ...ion easy Main Functions The main functions of the GWIM data module are as follows y Routing between WAN and LAN y Supports Multiple WAN ports Leased line xDSL cable modem interface y Functions for VPN...

Страница 49: ...to 1000 BASE SX LX TX GbE Gigabit Ethernet V35 Ports for connecting to T1 E1 links HSSI Ports for connecting to T3 E3 links SIO Ports for connecting RS 232 RUN LED The status of the GWIM Off No power...

Страница 50: ...ta module is shown below Figure 2 17 Front Panel of 4DSL Module The components on the front panel of 4DSL are as follows Table 2 21 Front Panel of 4DSL Module Port LED Function Description P1 P4 Ports...

Страница 51: ...in Functions The main functions of the MGI voice application module are as follows y Voice decompression G 729 G 723 G 726 G 711 y Facsimile relay Provides two facsimile channels and four voice channe...

Страница 52: ...pplied RUN LED MGI operation Off Power supply blocked On Booting Blink RAM program in operation LAN TX LED Ethernet Data Reception Off No data On or Blink Data received LAN Rx LED Links and Ethernet D...

Страница 53: ...G 711 y Facsimile relay One channel per 4 channels y Echo cancellation y Volume adjustment y Silence suppression Front Panel The front panel of the MGI64 voice application module is shown below Figure...

Страница 54: ...oice packet reception LED turns on when receiving voice packets 2 3 5 3 4WLI The 4WLI interface module uses DASL to send receive voice to from the phone system and wireless AP WBS24 Combo This module...

Страница 55: ...The components on the front panel of the 4WLI have the following functions Table 2 24 Front Panel of 4WLI Module Port LED Function Description P1 P4 Port for connecting to WBS24 Combo AP SIO UART port...

Страница 56: ...be added easily if necessary modular design y Only one SVMi 20E can be installed in the OfficeServ 7400 system Other voice mail systems cannot connect to SVMi 20E y When a voice message wav or fax mes...

Страница 57: ...onnector SIO Serial Interface for connecting to PC RST Button restarts the SVMi 20E calls in process are disconnected VM1 LED blinks when one or more of the default ports 1 4 are used VM2 LED blinks w...

Страница 58: ...ransmission and are connected to ports of the 8DLI 8COMBO 16DLI2 module Devices such as Add On Modules AOM and keyset daughterboards KDB D and KDB S can be added to digital phones as enhancements 5000...

Страница 59: ...Line LCD Keyset DS 5007S y 48 character display 2x24 LCD with 3 associated soft keys and scroll key y Seven programmable keys y Five fixed function keys y Built in speakerphone y Keyset Status Indicat...

Страница 60: ...s y Desk or wall mounted 12 Button Large LCD Keyset DS 5012L LE y Large LCD with 12 keys for feature selection y Supports data transfer handset calls and full duplex speakerphone y USB interface y Nav...

Страница 61: ...ing Internet Protocol y Navigation keys for easy use of Keyset functions y Five fixed function keys y Keyset Status Indicator y Eight selectable ring tones y Volume Up Down keys for digital control of...

Страница 62: ...speakerphone y Keyset Status Indicator y Eight selectable ring tones y Volume Up Down keys for digital control of speaker handset and ringer volumes y Desk or wall mounted 5100 Series IP Phones 12 But...

Страница 63: ...or y Eight selectable ring tones y Volume Up Down keys for digital control of speaker handset and ringer volumes y Desk or wall mounted 21 Button 2 Line LCD IP Keyset ITP 5121D y 48 character display...

Страница 64: ...2 4 5 Keyset Daughterboard KDB 5000 Series Keyset Daughterboard DS 5014D DS 5021D and DS 5038S keysets support one of three different types of daughterboard installed on them to enhance operation or t...

Страница 65: ...three external microphones attached to it for conference room type applications These microphones require an EXTMIC key programmed on the keyset to activate or deactivate them 2 4 6 Door Phone and Doo...

Страница 66: ...interface is connected with the LAN based on 10 100 BASE T and trans mits receives data e g Internet access other than voices The wireless processing component transmits receives voice data for wirele...

Страница 67: ...lines using amplifiers or ex ternal speakers The Loud Bell is connected via the MISC1 port of the MIS module an op tional module that can be mounted on the LP40 control module When the secondary call...

Страница 68: ...ngly the SMDR PC allows users to manipulate data more efficiently than the SMDR printer 2 6 7 CTI Computer Telephony Integration CTI is an integrated system that works with computers connected to PBXs...

Страница 69: ...an be adjusted depending on users needs Table 3 1 below shows the maximum line capacity of the OfficeServ 7400 Table 3 1 OfficeServ 7400 Capacity System Configuration Maximum Line Capacity Basic chass...

Страница 70: ...sion chas sis 2 When using E1 1260 When using 8TRK 256 When using DLI SLI 512 When using the maximum capacity 1024 voice When using the LAN switch 528 When using the internal power of PLIM 96 When usi...

Страница 71: ...number of CID receivers and DTMF receiv ers are as follows Table 3 4 Channels for Each Slot Category Slot Number of Channels Basic chassis 1 2 4 5 6 7 8 9 10 11 64 Expansion chassis 1 2 3 4 5 6 7 8 9...

Страница 72: ...Line Loop Start Signalling T1 Trunk Line y The electrical characteristics of the T1 trunk line comply with the ITU G 703 and G 704 standards Table 3 5 Electrical Characteristics of the T1 Trunk Line...

Страница 73: ...itter of the I O terminal Refer to the G 823 Transmission media A pair of twisted lines Load resistance 120 Indicated pulse nominal peak voltage 3 00 V Blank non pulse peak voltage 0 0 300 V y The sig...

Страница 74: ...Blank non pulse peak voltage 0 0 300 V y The electrical characteristics of the Digital Line Interface DLI are shown in the table below Table 3 9 Electrical Characteristics of the DLI Line Categories...

Страница 75: ...ansmission code V 28 driver Number of transmission lines 14 EA Indicated pulse nominal peak voltage 15 V Input Threshold 1 2 1 7 V y The electrical characteristics of the HSSI interface are shown in t...

Страница 76: ...Detect CSMA CD Transmission media UTP Unshielded Twisted Pair CAT3 CAT4 CAT5 STP Shielded Twisted Pair Number of UTP pairs 2 pairs Characteristic resistance 100 Cable thickness Diameter 0 51 mm 24 AW...

Страница 77: ...haracteristic resistance 100 Cable thickness Diameter 0 51 mm 24 AWG External diameter 6 mm y The electrical characteristics of the 1000 BASE SX LX interface which comply with the IEEE802 3z standards...

Страница 78: ...ts unit is generally MHz Km and is proportional to the value of the bit rate of the optical signal the on off speed multiplied by the maximum transmission distance The size of this value means the hig...

Страница 79: ...be sent received through the trunk line and processing of analogue phone signals 3 2 1 5 VDSL Signalling Type The electrical characteristics of the VDSL for using long distance Ethernet are shown in t...

Страница 80: ...stalk attenuation Less than 68 dBm y Frequency band 300 3400 Hz y Insulation resistance More than 1 M 3 2 3 Line Conditions y Length for installation Analogue phones Up to 1 km when AWG 24 cable is us...

Страница 81: ...ystem chassis is sup plied with backup power of 54 V 5 V 5 V 3 3 V 12 V or 56 V Table 3 19 I O Voltage of PSU Power Supply Devices Specifications Input power AC 220 V Power Supply Unit PSU Input power...

Страница 82: ...system The additional 54 V power is to be supplied as shown in Figure 3 2 to supplement insufficient internal power Figure 3 2 External Rectifier External Rectifier Installation Refer to the Samsung...

Страница 83: ...e system data base 3 4 2 Tones The output voltage and the frequency of the ring signals in the OfficeServ 7400 are as follows y Output voltage 75 V y Frequency 20 Hz The OfficeServ 7400 provides vario...

Страница 84: ...gital phones DS 5007S DS 5014S DS 5014D DS 5021D DS 5038S DS 5012L LE 5000 Series IP phones ITP 5014D ITP 5021D ITP 5012L 5100 Series IP phones ITP 5112L ITP 5114D ITP 5121D ITP 5107S Wireless LAN dev...

Страница 85: ...which one or two expansion chassis may be added as shown in the figure below Figure 3 3 OfficeServ 7400 Chassis Configuration y Basic chassis only 440 W 223 8 H 410 D mm y Two chassis basic expansion...

Страница 86: ...IP address allocated by the data server In this case the data server recognizes the MP40 of the call server from the host ID of the required DHCP information and allocates the IP address specified in...

Страница 87: ...ddress should be performed In this case the call server and the data server interface with each other and share the information on the conversion between the private IP and public IP This enables the...

Страница 88: ...etwork VLAN groups related equipment by work group accord ing to the LAN operational policy regardless of the location of the equipment The VLAN also processes switching for work groups The VLAN remov...

Страница 89: ...no additional power supply to network equipment used in wireless or wired LAN is necessary PoE allows the user to send the data and the power simultaneously via an Ethernet cable thus reducing the ins...

Страница 90: ...Internet can be connected via the High Speed Serial Interface HSSI with a maximum transmission speed of 52Mbps Generally HSSI can use the equipment on a token ring and Ethernet network for connecting...

Страница 91: ...d to construct the allocation tree efficiently at WAN This optimizes the number of data streams that can occur in this environment Routing between VLAN Groups Communication between VLAN groups is done...

Страница 92: ...he pre DNS IP and this function changes the DNS IP by registering the post DNS IP into the Redirect table Firewall y Access filtering Prevents access to disallowed IP addresses to control access for t...

Страница 93: ...tunnel through the VPN gateways be tween the OfficeServ 7400 data servers Up to 100 VPN channels are available for one VPN y PPTP PPTP is a tunnelling protocol for using the IP based network PPP enca...

Страница 94: ...words network communication is always available unless a link failure occurs in all external networks System Management Interface This function allows the administrator to report and manage alarm eve...

Страница 95: ...endant In this case the call routing function will be also provided this detects whether the entered phone number is valid or that the length of the phone number can be changed Announcement Auto Chang...

Страница 96: ...ies to login to the mailbox this function checks the password in or der to prevent unauthorised access The mailbox number and password are entered and checked in sequence y When a calling party direct...

Страница 97: ...delete messages after listening to them The subscriber can specify the time for auto message deletion Setting the Maximum Message Length This function is used to set the maximum length of time availa...

Страница 98: ...g the subscriber via the phone s LCD screen or LED The subscriber can listen to the new message by picking up the handset Call Record This function allows the subscriber to record a call in their voic...

Страница 99: ...e Reject Receipt button is clicked a message will be displayed notifying that the address of the party of the cur rently read mail is added to the Receipt Reject list y Transfer the Mail to another Bo...

Страница 100: ...to select a file saved on the PC y Copy Message to Sent Folder Store the sent mail in Sent Folder y Append Signature Send the mail with the sender s signature attached The signature can be specified b...

Страница 101: ...iber to create an address list Select Group Select an address group to change the name or delete the address y Change Group Name y Delete Group Name y Select All Select all addresses from the address...

Страница 102: ...mail server To find the protocol type access the corresponding server y Leaving the original message The subscriber can leave the original message in the external mail account when setting an external...

Страница 103: ...stem can restrict the storage capacity of the mailbox and display an alarm signal when the assigned capacity is exceeded Notice Management The E mail user can register or change the notices in his her...

Страница 104: ...e are two types of backup Auto backup The system automatically executes the backup periodically Manual backup The user can back up on the web when needed Mailbox Management The mailbox administrator c...

Страница 105: ...ule name_date_hour tar format e g home dbbackup MS_20030620_145632 tar y Collect the MS_ tar US_ tar SS_ tar and DS_ tar files in the home database direc tory into one tar file and send it to the web...

Страница 106: ...played as follows y OfficeServ 7400 unit configuration y OfficeServ 7400 version information y Data function setting version information y NAT information y Feature server UMS mail function setting ve...

Страница 107: ...Module AP Access Point AS Autonomous System ASIC Application Specific Integrated Circuit AWG American Wire Gauge B BoD Bandwidth on Demand BRI Basic Rate Interface C CBQ Class Based Queuing CDR Call D...

Страница 108: ...Protocol EMI Electro Magnetic Interference F FE Fast Ethernet FXO Foreign Exchange Office FXS Foreign Exchange Station G GK GateKeeper GND Ground GPLIM Gigabit PoE LAN Interface Module GSIM Gigabit Sw...

Страница 109: ...ation MP40 Main Control Processor MPD Metering Pulse Detection N NAT Network Address Translation O OSM OfficeServ Manager OSPF Open Shortest Path First P PCM Pulse Code Modulation PFT Power Fail Trans...

Страница 110: ...ion Initiation Protocol SLI Single Line Interface SMDR Station Message Detail Recording SME Small Medium Enterprise SMTP Simple Mail Transfer Protocol SONET Synchronous Optical Network STP Signalling...

Страница 111: ...bscriber Line VLAN Virtual Local Area Network VMS Voice Mail System VoIP Voice over Internet Protocol VPM Voice Processing Module VPN Virtual Private Network W WAN Wide Area Network WBS Wireless Base...

Страница 112: ...Samsung Business Communications Brookside Business Park Greengate Middleton Manchester M24 1GS...

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