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ATT DEFINITY Communications System Generic 3 Instructions Manual

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    							MERLIN® /System 25 Voice Terminal Su p port  —  731xH 
    Series
    Issue  3   March 1996
    3-887
    Control Outward Restriction  c o r
    Control Station to Station Restriction c s r
    Automatic Call-Back Call callback Q
    ACD Hunt Group Supervisor Assist  sa S
    Control Termination Restriction c t r
    Emergency Call to Attendant Queue 
    Full Redirectionqf E
    All Call-Ap pearances on Station are 
    Busy BB
    CAS Main in Night Service  n n
    Call Forward to CAS-Main attendant  f f
    Service Observe agent & one other 
    party    o
    Held Call Timed Reminder  hc
    Call Redirected do to coverage 
    criteria cover c
    Terminate call via intercom ICOM i
    Terminate call via ARS  ARS A
    Terminate call via Call-Forward   forward f
    Terminate call via Call-Park p ark p
    Automatic Call Back Activate ACB Q
    Queued at terminator  QTQ q
    Terminate via Call Waiting wait w
    Terminate to Attendant via Trunk 
    Group control control
    Terminate to Attendant via Re call Call recall
    Terminate to Attendant via Return Call  return
    Terminate to party with Do Not Disturb   DND D
    Table 3-70. Merlin Terminal Codes — Continued  
    Call Type Digital Hybrid
    Continued on next page 
    						
    							Feature Descriptions
    3-888Issue  3   March 1996 
    Considerations
    The following features of the 731xH series voice terminals are affected when 
    used with the DEFINITY switch:
    nACD 
    The 731x hybrid terminals are not recommended for ACD agent 
    applications because in heavy traffic conditions display information may 
    be lost.
    nCall Ap pearance Button LEDs
    Both the red and green LEDs associated with the first 10 dual-LED feature 
    buttons are supported for the 7313H, 7314H, 7315H, 7316H, and 7317H 
    voice terminals when these buttons are administered as call or brid ged 
    appearances:
    — The red ‘‘on’’ LED indicates the call appearance that is selected 
    when the user goes off-hook.
    — The green ‘‘on’’ LED indicates the call at that a ppearance or at a 
    bridged appearance.
    nFeature Buttons
    Call a ppearances or bridged ap pearances can be assigned only to 
    feature b uttons 1 to 10 on the 731xH voice terminals.
    nFeature Button LEDs
    The 731xH voice terminals have two LEDs (one red and one green) 
    associated with each administrable feature button. The DEFINITY switch 
    only supports the green LEDs associated with the feature b uttons. 
    O peration of the green LEDs is identical to operation of the 7400 series 
    terminals.
    nHFAI
    The DEFI NI TY switch replaces the HFAI capability on System 25 with the 
    Internal Automatic Answer (IAA) feature. When an internal call arrives at 
    an idle 731xH series terminal that has IAA activated, the speakerphone 
    and microphone at that terminal activate and automatically answer the 
    call. When this occurs, the calling voice terminal receives a distinctive 
    tone b urst, while the called voice terminal emits a distinctive tone b urst via 
    the speaker.
    nMessage Button
    The mess a ge button is not supported for the 731xH voice terminals. As a 
    result, pressing the Message button on one of these voice terminals has 
    no system or local effect. 
    						
    							MERLIN® /System 25 Voice Terminal Su p port  —  731xH 
    Series
    Issue  3   March 1996
    3-889
    nMessage LED
    The Message LED is supported for the 731xH voice terminals. This LED is 
    controlled by existing AUDIX and Leave Word Calling features on the 
    DEFI NI TY switch. With these terminals, users cannot control the state of 
    the Message LED by pressing the Message buttons. The Message LED 
    operation is i dentical to that provided by the 7400 series voice terminals.
    The Mess a ge Retrieval and Retrieval Using Display modes are not 
    supported for ATL terminals. As a result, these modes do not affect 
    Message LEDs on ATL terminals.
    nMicrophone
    Microphone button operation is supported for the 731xH voice terminals. 
    Each of these voice terminals sup p ort the following capabilities:
    — If the terminal is off-hook on the handset, pressing the Microphone 
    button has no effect.
    — If the terminal is off-hook with the speakerphone active, pressing 
    the Microphone b utton toggles the mi crophone between ‘‘on’’ and 
    ‘‘off.’’
    nMode Switch
    The DEFI NI TY switch does not support the mode switch for testing or 
    programming.
    nRecall Button
    The Recall button is not supported for the 731xH voice terminals. As a 
    result, the Recall button has no system or local effect when p ressed by the 
    user.
    nSpeakerphone
    Full speakerphone and headset-adjunct operation are sup p orte d for the 
    731xH voice terminals. For each of these voice terminals, the DEFINITY 
    switch supports the following capabilities:
    — Activation/deactivation of the terminal’s microphone via the fixed 
    MIC button or HFAI/MIC b utton.
    — Activation/deactivation of the speakerphone function via the 
    Speakerphone button.
    — Control of the terminal’s microphone and speaker LEDs in 
    accordance with the states of the mi crophone and sp eakerphone.
    If the speakerphone function is activated while the terminal is off-hook on 
    the handset, the handset becomes inactive and the microphone (and 
    speaker) become active.
    nStop and Pause (Drop and Hold) Sub-designated buttons
    The Stop and Pause functions are not supported for the 731xH voice 
    terminals. 
    						
    							Feature Descriptions
    3-890Issue  3   March 1996 
    Misoperation Handling
    Feature Availability
    Misoperation Handling is available with all Generic 3 releases. G3V4 a n d later 
    releases provide for modified misoperation alerting.
    Description
    Misoperation Handling defines the treatment of calls when a misoperation 
    occurs. A misoperation occurs when calls are left on hold when the controlling 
    station g oes on hook.
    For exam ple, a misoperation can occur under either of the following conditions:
    1. When a voice terminal with a call on hold goes on-hook during a feature 
    operation prior to completion of that operation (in some cases g oing 
    on-hook completes the operation, as in call transfer). For  example,  a 
    misoperation occurs when a user places a call on hold, begins to transfer 
    the call, dials an invalid extension number, and then hangs up.
    2. When the system enters night service while attendant consoles have calls 
    on hold.
    With G3V4 a n d later releases, the system administrator can alter the standard 
    Misoperation Handling to ensure that an external caller is not left on hold 
    indefinitely, or dropped by the system after a misoperation with no way to reach 
    someone for help.
    Misoperation Handling varies considerably depending upon system 
    administration, and the conditions that are in effect when the call is p laced on 
    hold. The following sections describe common Misoperation Handling scenarios.
    Standard Operation
    Standard Misoperation Handling is in effect when “Intercept Treatment on Failed 
    Trunk Transfer” is “Y” and either:
    nThe “ Misoperation Alerting”  field on the “ Feature-Related System 
    Parameters”  form is set to n.
    nThe software release is earlier than Generic 3 Version 4.
    Standard Misoperation Handling is dependent on the type of voice terminal in 
    use when the misoperation occurs (analog single-line, or digital 
    multi-ap pearance).
    Analog Operation
    The following sc enario d escribes a typical misoperation on an analog terminal. 
    						
    							Misoperation Handling
    Issue  3   March 1996
    3-891
    1. While connected to an incoming external call, an analog station user 
    flashes with the intent of transferring the call to another terminal.
    2. The user hears d ial tone and then dials an invalid extension and hangs up.
    3. A misoperation has occurred. The analog station user will receive priority 
    ringback indefinitely
    Digital Operation
    The following sc enario d esc ribes a typical misoperation on a di gital terminal.
    1. While connected to an incoming external call, a digital station user places 
    the call on hold with the intent of transferring the c all to another terminal b y 
    pressing Transfer.
    2. The user hears d ial tone and then dials an invalid extension and hangs up.
    3. A misoperation has occurred. The held call remains on hold indefinitely 
    with a flashing  call a p pearance lamp.
    G3V4 and Later Releases
    G3V4 and later releases allow the system administrator to select Misoperation 
    Alerting as an option for Misoperation Handling. With this option, calls receive 
    different Misoperation Handling depending upon: the type of voice terminal in 
    use when the misoperation occurs (digital multi-appearance, analog single-line, 
    or attendant console); and the type of call on hold when the misoperation occurs. 
    The following list describes the three call types used to determine Misoperation 
    Handling. The scenarios following the Call Type list describe typ ical 
    misoperations with Misoperation Alerting enabled.
    nCall Type 1: An outgoing public network call is classified as Type 1 when 
    it is ringing or answered. An incoming call is classified as Type 1 when it is 
    answered.
    nCall Type 2: An incoming external public network call that has not yet 
    been answered is classified as Type 2. (A misoperation cannot occur with 
    a Type 2 call because an unanswered incoming call cannot be placed on 
    hold without being answered first.)
    nCall Type 3: All other calls, that is, all internal calls, conference calls, and 
    tie trunk calls of any type are classified as Type 3.
    Analog Operation
    The following two scenarios describe typ ical misoperations on an analog 
    terminal.
    Scenario 1
    1. While connected to an incoming external call (Call Type 1), an analog 
    station user flashes with the intent of transferring the call to another 
    terminal. 
    						
    							Feature Descriptions
    3-892Issue  3   March 1996 
    2. The user hears d ial tone and dials an invalid extension. The user then 
    hears interc ept tone. 
    3. At any point after this, when the user hangs up, the call re-alerts the user 
    for 15 seconds, and is then route d to the attendant.
    Scenario 2
    1. While connected to an incoming external call (Call Type 1), an analog 
    station user flashes with the intent of placing the current call on hold while 
    calling another extension.
    2. The user hears d ial tone and dials the CAS Remote Hold/Answer 
    Hold/unhold access code.  
    3. The user hears d ial tone, d ials and talks with the second call, and then 
    hangs up.
    4. A misoperation has occurred because the first call has been left on hold.
    5. The terminal is alerted for 15 se conds with normal ringing and then the c all 
    is routed to an attendant.
    6. If the first call has not been answered by the expiration of the timer, the 
    call is dropped by the system.
    Digital Operation
    The following sc enario d escribes a typical misoperation on a di gital terminal.
    1. While connected to an incoming external call (Call Type 1), a digital 
    station user places the call on hold with the intent of transferring the c all to 
    another terminal.
    2. The user hears d ial tone and then dials an invalid extension and hangs up.
    3. A misoperation has occurred. 
    4. The call on hold re-rings the terminal with a normal ring (not priority 
    ringing) for the number of rings indicated by call coverage administration.
    5. After ringing for the a dministered number of rings, the call is directed to 
    the terminal’s administered  coverage path, which can direct the caller to 
    an announcement and/or disconnect them.
    Attendant Console
    A misoperation only occurs on an attendant console when the system enters 
    night service with calls on hold at an attendant console. The following sc enario 
    describes a typical misoperation on an attendant console.
    1. The system enters night service with calls on hold at an attendant c onsole.
    2. All calls on hold on the console start re-alerting (as if the held call timed 
    reminder had expired).  
    						
    							Misoperation Handling
    Issue  3   March 1996
    3-893
    3. When the calls start re-alerting, a timer is started. The timer is set to the 
    duration entered in the “Alerting (sec)” field on the “Attendant Console”  
    form.
    4. If the attendant has not answered the call by the time the timer has 
    expired, the call is routed to the system night service destination. (If still 
    not answered the call will be dropped by the night service disconnect 
    timer.)
    Interactions
    nAttendant Lockout
    The attendant lockout feature is temporarily disa bled on calls that are 
    re-alerting the attendant console following a misoperation. This allows the 
    calls to be answered by the attendant.
    Administration
    To enable G3V4 and later release misoperation alerting, enter y in the 
    Misoperation Alerting field on the “Feature-Relate d System Parameters”   form. 
    For complete instructions for administering Misoperation Handling, see 
    Misoperation Handling in the 
    DEFINITY Communications System Generic 3 
    Version 4 Imp lementation,
     555-230-655, or DEFINITY Communications System 
    Generic 3 V2/V3 Implementation
    , 555-230-653.
    See the c ountry applications notes for complete instructions for administering the 
    Misoperation Handling feature to meet France Typ e Approval requirements.
    Hardware and Software Requirements
    No a d ditional hardware or software is required. 
    						
    							Feature Descriptions
    3-894Issue  3   March 1996 
    Modem Pooling
    Feature Availability
    This feature is available with all Generic 3 releases.
    Description
    Allows switched connections between d i gital data en d points  (data modules) 
    and analog data endpoints and acoustic coupled modems. The  analog data 
    endpoint can be either a trunk or line circuit.
    Data transmission between a d i gital data en d point and an analog endpoint 
    requires a conversion resource since the DCP format used b y the d ata module is 
    not comp atible with the mo dulated signals of an analog modem. The conversion 
    resource translates the DCP format into modulated signals and vice versa. 
    The Modem Pooling feature provides pools of conversion resources.
    Inte grated conversion resources  and combined  conversion resources  are 
    available with the system.  The integrated type has functionality integrated on the 
    TN758 Pooled Modem circuit pack, which provides two conversion resources 
    and each one emulates a Trunk Data Module cabled to a 212 Modem. This 
    integrated type is not available for countries that use A law. The combined type is 
    a Trunk Data  Module  cabled to any Trunk Data Module-compatible modem to 
    provide a conversion resourc e.  Combined type applies to all system 
    independent of system companding.
    When a conversion resource is required, the system queries the d i gital data 
    module associated with the call to determine if its options are compati ble with 
    those supported by the modem pools. If the d ata module options are not 
    compatible, the originating user receives interc ept treatment. If the options are 
    compatible, the system o btains a c onversion resourc e from the a p propriate pool.  
    If a conversion resourc e is not available, the user receives reorder treatment. If 
    all d ata calls, including analog, are not successfully established, the call will be 
    disconnected within 15 seconds (handshake time-out).
    In almost all cases, the system can detect the need for a conversion resource. 
    Data calls originated from an analog data endpoint to a d igital d ata endpoint 
    require that the user indicate the need for a conversion resource, since the 
    system considers an analog call origination as a voice call. This need is 
    indicated by dialing the Data Origination Ac cess Code before dialing the digital 
    data endpoint. Use of Data Call Preindication before One-Button Transfer To 
    Data is recommended when establishing d ata calls that use toll network facilities.  
    Needed conversion resources are reserved before any toll charges are incurred. 
    						
    							Modem Poolin g
    Issue  3   March 1996
    3-895
    The DEFI NI TY s yst em  provides a ‘‘HOLD Time’’ parameter to sp ecify the 
    maximum time any conversion resource may be held but not used (while a data 
    call is in queue).
    Combined conversion resources additionally supports the following 
    configurations:
    nIBM bisynchronous protocols typically used in 3270 and 2780/3780 
    applications. Both require 2400 bps or 4800 b ps, half-duplex, 
    synchronous transmission.
    nInteractive IBM-TSO  a p p lications using 1200 bps, half-duplex, 
    asynchronous transmissions.
    nDATAPHONE II switched network modems supporting asynchronous and 
    synchronous communications, and autobaud at 300, 1200, or 2400 b ps.
    nDEFI NI TY s yst em  Generic 3 can operate up to 19.2 kbps.
    nDifferent pools can have different data transmission characteristics.
    The following modem options are supported by the integrated (only) pool:
    nReceiver Resp onds to Remote Loop
    nLoss of Carrier Disconnect
    nSend Space Disconnect
    nReceive Space Disconnect
    nCF-CB Common
    nSpeed, Duplex, and Synch (administered )
    Considerations
    Modem Pooling offers a pool of conversion resources which increase data call 
    flexibility. Conversion resources allow analog data endpoints, using modems, to 
    communicate with digital data endpoints (using data modules).  Also, pooling of 
    conversion resources allows maximum use of such facilities.
    Data Call Preindication is recommended for off-premises data calls involving toll 
    charges.
    On data calls between a d ata module and an analog data end point, 
    Return-to-Voice releases the conversion resource and returns  it to the pool. The 
    voice terminal user is then connected to the analog data endpoint.
    For traffic purposes, DEFINITY system  Generic 3  accumulates data on modem 
    pooling calls separate from voice calls. Measurements on the pools are also 
    accumulated. 
    						
    							Feature Descriptions
    3-896Issue  3   March 1996 
    When a voice terminal user places a data call to d i gital data endpoint and does 
    not transfer the call to another digital data endpoint, but uses a mo dem or 
    acoustically coupled modem, the user must dial the Data Origination access 
    code assigned in the system b efore dialing the distant endpoint.
    DEFI NI TY s yst em  Generic 3i can support u p to five pools; Generic 3s can 
    support up to two pools, and Generic 3r can support up to 63 pools. The pools 
    may be c ombined, integrated, or any mix thereof. Each pool has a c a pacity of up 
    to 32 conversion resources.
    Use of Modem Pooling cannot be restricted. Also, queuing for conversion 
    resources is not provided, although calls queued on a hunt group retain reserved 
    conversion resources while queued.
    Mixing of mo dems from different vendors within a combined pool should be 
    avoided since a difference in transmission characteristics may exist. Mixing is 
    possible, but satisfactory results are not g uaranteed.
    Data transmission characteristics (speed, d uplex, and synchronization mo de), as 
    administered, must be i dentical to the Trunk Data Module and modem optioning 
    by the customer.
    Each data call that uses Modem Pooling uses four time slots (not just two). As a 
    result, heavy usage of Modem Pooling could affect the Trunk Data Mo dule bus 
    blocking characteristics.
    Tandem Switches will not insert a pooled modem. It is the resp onsibility of the 
    originating switch to do so.
    Interactions
    The following features interact with the Modem Pooling feature.
    nData Call Setu p
    Data calls to or from a Trunk Data Mo dule cannot use Mo dem Pooling.
    nData-Only Off-Premises Extensions
    Modem Pooling is not p ossible on calls to or from a Data-Only 
    Off-Premises Extension, when this type of digital data endpoint uses a 
    Trunk Data Module.
    nData Privacy and  Data Restriction
    The insertion of a modem pool d oes not turn off Data Privacy and/or Data 
    Restriction. 
    						
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