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Multi-Tech Systems Mvp-2400/2410/3010, Mvp-210/410/810 Voice/ip Gateways S000249C User Guide

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    							MultiVOIP User Guide Technical Configuration (Digital)
    121
    E1 Parameter Definitions
    Field Name Values Description
    T1/E1/ISDN E1 European standard.
    Long-Haul
    ModeY/N In Long-Haul Mode, the
    MultiVOIP auto-matically
    recovers received signals as low
    as –36 dB.  The maximum
    reachable length with 22 AWG
    cable is 2000 meters.  When
    Long-Haul Mode is disabled,
    signals as low as –10 dB can be
    received.
    Default: disabled.
    CRC Check
    (Cyclic
    Redundancy
    Check)-- Not applicable to E1.
    Frame Format Double Frame;
    MultiFrame
    (with CRC4);
    MultiFrame
    (w/CRC4,
    modified)Frame Format of MultiVOIP
    should match that used by PBX
    or telco. 
    						
    							MultiVOIP User Guide Technical Configuration (Digital Voips)
    122
    E1 Parameter Definitions (cont’d)
    Field Name Values Description
    CAS Protocol E&M Immed Strt
    E&M Wink Start
    E&M Wink with
    dial tone
    FXO Ground Strt
    FXO Loop Start
    FXS Ground Strt
    FXS Loop Start
    MFR2ITU
    MFR2 China
    MFR2 ANIChannel Associated Signaling
    (CAS) is a method of
    incorporating telephony
    signaling info into an E1
    voice/data stream.  In CAS, the
    signaling bits (the A, B, C, and
    D bits) are multiplexed into the
    signal stream of each E1
    channel.  (By contrast, in
    Common Channel Signaling
    (CCS), one channel handles
    signaling for all other channels.)
    Each CAS protocol defines the
    states of the signaling bits
    during the various stages of a
    call (IDLE, SEIZED, ANSWER,
    RING-ON, RING-OFF).
    The CAS protocol code allows
    the VOIP to  interact properly
    with the PBX or central-office
    switch that it serves.  The need
    to download CAS protocols
    arises for only a small minority
    of VOIP users, and only when
    PBX/switch is found to be
    incompatible with standard
    protocols.
    Match this parameter to the
    setting of PBX or central-office
    switch. 
    						
    							MultiVOIP User Guide Technical Configuration (Digital)
    123
    E1 Parameter Definitions (cont’d)
    ISDN Parameters
    Field Name Values Description
    Enable
    ISDN-PRIY/N
    If digital connection is ISDN-
    PRI type, this box should be
    checked. When ISDN is
    enabled, the “CAS Protocols”
    field is grayed out (ISDN has its
    own signaling method).
    Terminal/
    Networkeither
    “Terminal” or
    “Network”When “Terminal” is selected, it
    indicates that the MultiVOIP
    should emulate the subscriber
    (terminal) side of the digital
    connection.  When “Network”
    is selected, it indicates that the
    MultiVOIP should emulate the
    central office (network) side of
    the digital connection.
    Setting used for MultiVOIP
    must be opposite to the setting
    used in the PBX.  For example,
    if the PBX is set to “Terminal,”
    then the MultiVOIP must be set
    to “Network.”
    Country see table, later
    this chapterCountry in which MultiVOIP is
    operating with ISDN.
    Operator
    see table, later
    this chapterIndicates phone switch
    manufacturer/model or refers
    to telco so as to specify the
    switching system in question.
    ISDN is implemented
    somewhat differently in
    different switches.
    Note on
    Country &
    Operator
    options.__
    [ISDN implementation options
    are shown, arranged by
    country, in a table below – soon
    after E1 Parameter Definitions.] 
    						
    							MultiVOIP User Guide Technical Configuration (Digital Voips)
    124
    E1 Parameter Definitions (cont’d)
    Field Name Values Description
    Line Build Out 0 dB,  -7.5 dB,
    -15 dB, -22.5 dBTo reduce the crosstalk on
    received signals, a transmit
    attenuator can be placed in the
    data path.  Transmit attenuation
    is selectable.  Default: O dB
    Pulse Shape
    Level0 to 40 Meters
    40 to 81 m
    81 to 122 m
    122 to 162 m
    162 to 200 mRefers to length of cable
    between MultiVOIP and
    PBX/telco in meters. Most
    common will be 0 to 40m.
    Clocking External/Internal
    Set opposite to telco/PBX
    setting.  Example: if telco
    clocking internal, set VOIP
    clocking as external.
    Line Coding AMI / HDB3 Match to PBX or telco.
    PCM Law A-Law/Mu-Law Match to PBX or telco.
    “A-law” is analog-to-digital
    compression/expansion
    standard used in Europe.
    “Mu-law” is North American
    standard. 
    						
    							MultiVOIP User Guide Technical Configuration (Digital)
    125
    10.  Set ISDN Parameters (if applicable).   These parameters are acces-
    sible in the T1/E1/ISDN Parameters screen.  If your T1 or E1 phone line
    is a Primary Rate Interface ISDN line, enable ISDN-PRI and set it for the
    particular implementation of ISDN that your telco uses.  The ISDN
    types supported by the digital MultiVOIP units (at press time) are listed
    below, organized by country. 
    						
    							MultiVOIP User Guide Technical Configuration (Digital Voips)
    126
    11.  Set SNMP Parameters (Remote Voip Management).  This dialog
    box can be reached by pulldown menu, keyboard shortcut, or
    sidebar.  To make the MultiVOIP controllable by a remote PC
    running the MultiVoipManager software, check the “Enable SNMP
    Agent” box on the SNMP Parameters screen.
    Accessing “SNMP Parameters”
    Pulldown Icon
    Shortcut Sidebar
         Ctrl + M 
    						
    							MultiVOIP User Guide Technical Configuration (Digital)
    127
    In each field, enter the values that fit your particular system. 
    						
    							MultiVOIP User Guide Technical Configuration (Digital Voips)
    128
    The SNMP Parameter fields are described in the table below.
    SNMP Parameter Definitions
    Field Name Values Description
    Enable SNMP
    AgentY/N Enables the SNMP code in the
    firmware of the 
    MultiVOIP.  This
    must be enabled for the 
    MultiVOIP
    to communicate with and be
    controllable by the
    MultiVoipManager software.
    Default:  disabled
    Trap Manager Parameters
    Address 4 places; n.n.n.n
    n = 0-255IP address of MultiVoipManager
    PC.
    Community
    Name-- A “community” is a group of VOIP
    endpoints that can communicate
    with each other.  Often “public” is
    used to designate a grouping where
    all end users have access to entire
    VOIP network.  However, calling
    permissions can be configured to
    restrict access as needed.
    Port Number 162The default port number of the
    SNMP manager receiving the traps
    is the standard port 162.
    Community
    Name 1Length = 19
    characters (max.)
    Case sensitive.First community grouping.
    Permissions Read-Only,
    Read/WriteIf this community needs to change
    MultiVOIP settings, select
    Read/Write.  Otherwise, select
    Read-Only to view settings.
    Community
    Name 2Length = 19
    characters (max.)
    Case sensitive.Second community grouping
    Permissions Read-Only,
    Read/WriteIf this community needs to change
    MultiVOIP settings, select
    Read/Write.  Otherwise, select
    Read-Only to view settings. 
    						
    							MultiVOIP User Guide Technical Configuration (Digital)
    129
    12. Set Regional Parameters (Phone Signaling Tones & Cadences).
    This dialog box can be reached by pulldown menu, keyboard
    shortcut, or sidebar.
    Accessing “Regional Parameters”
    Pulldown Icon
    Shortcut Sidebar
         Ctrl + R 
    						
    							MultiVOIP User Guide Technical Configuration (Digital Voips)
    130
    The Regional Parameters screen will appear. For the country selected,
    the standard set of frequency pairs will be listed for dial tone, busy
    tone, ‘unobtainable’ tone (fast busy or trunk busy), and ring tone.
    In each field, enter the values that fit your particular system. 
    						
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