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ATT DEFINITY Communications System Generic 3 Instructions Manual
ATT DEFINITY Communications System Generic 3 Instructions Manual
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Information System Network (ISN) Interface Issue 3 March 1996 3-787 nConnected Indication — This o ption should be disabled, and can only be set if Keyboard Dialing is enabled. nCOR — Outgoing lines should be origination restricted. Incoming lines should be termination restricted. Hardware and Software Requirements One TN726 Data Line circ uit pack is required for each eight ISN interfaces. No a d ditional software is required.
Feature Descriptions 3-788Issue 3 March 1996 Integrated Directory Feature Availability Integrated Directory is available with all Generic 3 releases. Description Allows internal system users with display-equipped terminals to access the system database, use the touch-tone buttons to key in a name, and retrieve an extension number from the system directory. The d irectory contains an alphanumeric listing of the names and extension numbers assigned to all voice terminals administered in the system. The Inte grated Directory feature can be accessed by display-equip ped voice terminal users or Attendants with an assigned Integrated Directory button. The names in the directory are those administered by the System Manager on the “Ind ividual Voice Terminal” forms. Names cannot exceed 15 characters (including spaces and c ommas) and can be entered in one of the following three formats. nLast name, comma, first name, space, then mid dle name or initial, if desired. For example, the following entries are acceptable: — Jones,Betty Ann — Smith,A E — Thomas,John J — Ab b ott,Lynn nFirst name, space, second name or initial, and then last name. For example, the following entries are acceptable: — Betty Ann Jones — A E Smith — John J Thomas — Lynn Abbott nA single entry is also acceptable: — Cafeteria — 1J409 — 2F816 — Purchasin g The following is an example of a typical Integrated Directory database:
Integrated Directory Issue 3 March 1996 3-789 — 1J409 — Ab b ott,Lynn A — Brown,Kent J — Cafeteria — Carr,Danny — Carter,Ann — 2F816 — Purchasin g — Barbara Quincey — Roberson,Don T — William Ruoff — Smith,A E — Streck,R T The touch-tone buttons are used to key in the numb ers and letters labeled on them. The following exc eptions a p ply: n7 (PRS) is also used for a Q. n9 (WXY) is also used for a Z. n* is used for a space or comma. n# is not used. To activate the Integrated Directory feature, the user presses the Integrated Directory button. This puts the voice terminal in the Inte grated Directory mode and turns off the tones normally generated when a touch-tone button is pressed. The touch-tone buttons are now used exclusively for keying in names and not for dialing. After the Integrated Directory button is p ressed, the alphanumeric d isplay shows DIR ECTOR Y — PLE AS E ENTE R NA ME . Nam e s are always keyed in the following order: last name, comma, and then first name or initial. When searching for a single entry, the letters or numb ers are keyed in order. Several letters might be needed to get the correct entry. When a button is pressed, the display shows the first name that matches the first letter on the button. For example, if a user is searching for the name Ann Carter and p resses 2 to key in the letter C, the disp lay might show Abbott,Lynn A and an extension number. (2 matches A before it matches C.) If the user presses 2 again to key in the letter A, the display stays the same. (Again, AB is matched before CA.) If the user now p resses 7 to key in an R, the d isplay might show Carr,Danny and an extension number.
Feature Descriptions 3-790Issue 3 March 1996 At this p oint, the user can press 8 to key in the letter T or can press the Next Message button on the alphanumeric display. Pressing Next Message displays the next name in the directory and, in this case, might be Ann Carter. When the desired name and extension number are displayed, the user can automatically place a call to that person by pressing the Call Display button. If a name is entered but not found in the directory, the display shows NO MATCH — TRY AGAIN. You can then enter another name. To search for another name, the user presses the Integrated Directory b utton again, and the feature is reactivated. To exit the Integrated Directory mode, the user presses one of the other mo de buttons assigned to the alphanumeric display module; for example, the Normal mode button. Considerations With Integrated Directory, users spend less time looking up names and extension numbers. Instead of searching through lists or directories, a user simply keys in the desired name and the display shows the name and extension numb er. Less dialing time is also required if a Call Display b utton is p rovid e d. When the desired extension is displayed, the user just presses the Call Display button to automatically place the call. A maximum numb er of users can activate Integrated Directory at the same time. If more than this maximum number of users try to activate the feature at the same time, the Integrated Directory button lights and the display shows Directory unavailable — Try Later. The entire directory cannot be searched by pressing 2. Pressing 2 and then continually pressing Next Message displays, one by one, all entries b e ginning with A, B, C, and 2. If all entries have been displayed and Next Message is pressed again, the display repeats from the first entry in the listing associated with 2. When the voice terminal is in the Integrated Directory mode, it cannot be used to make calls or access features by dial code. It can, however, still b e used to activate other features or to place calls if dialing is not required. Also, a user can enter the Integrated Directory mode while active on a call, and calls can be received when the Integrated Directory mode is active. The set of characters allowed in the Integrated Directory database are the alphanumeric characters (A-Za-z) and digits (0-9) as well as s pace ( ) and comma (,) which are used as delimiters. In ad d ition, the following special characters are allowed: hyphen (-), apostrophe (‘), period (.), slash (/), an d ampersand (&.) These special characters, though considered legal characters, are not entered into the Integrated Directory. Instead, a period (.) is replaced by a space ( ). Apostrophe (‘), hyphen (-), slash (/), and ampersand (&) are ignored.
Integrated Directory Issue 3 March 1996 3-791 For G3r, if a name of a station or data module begins or ends with a comma (,) or contains more than one comma (,,), the directory search for that name fails. If a character outside the allowed set is entered as the name of a station or data module, the directory search for that name fails. NOTE: The “/” and “?” characters are p unctuation marks and should not be used to re present information. The “ +” or “%” characters may be used to re present information. Interactions The following features interact with the Integrated Directory feature. nAttendant Display and Voice Terminal Display If prefixed extensions are used in the system’s dial p lan, the prefix is not displayed when the extension is displayed. The Call Display button c an be used to dial prefixed extensions b ecause the system d ials the prefix, even though it is not displayed. nMerlin®/System 25 Voice Terminal Support — 731xH Series Support The Merlin/System 25 7309H, 7313H, 7314H, 7315H, 7316H, and 7317H voice terminals do not support Integrated Directory displays. nTouch-Tone Dialin g Call origination and feature access by dial c o de is not allowed when the Integrated Directory feature is active. Administration Integrated Directory is administered on a per-voice terminal basis by the System Manager. The following items require administration: nDisplay Module nDirectory Button nCall Display Button nMessaging Cartridge (for 7404D) nNext b utton Hardware and Software Requirements No a d ditional hardware or software is required.
Feature Descriptions 3-792Issue 3 March 1996 Integrated Services Digital Network (ISDN) — Basic Rate Interface (BRI) Feature Availability This feature is available with all Generic 3 releases. Description Allows connection of the system to equipment or endpoints that support an Integrated Services Digital Network (ISDN) by using a standard ISDN frame format called the Basic Rate Interface (BRI). An ISDN provides end-to-end d igital connectivity and uses a high-speed interface which provides service-independent access to switched services. Through internationally accepted standard interfaces, an ISDN provides circuit or packet-switched connectivity within a network and can link to other ISDN supported interfaces to provide national and international digital connectivity. Two types of ISDN interfaces are currently defined: the PRI and the BRI. This description focuses on ISDN-BRI. The ISDN-BRI is a 192 k b ps interface that carries two 64 k b ps B-channels and one 16-kbps D-channel. Each B-channel supports voice and data, while the D-channel transports data, signaling, and other bits for framing. NOTE: nAlthough ISDN-BRI can support data transmission on the D-channel, DEFI NI TY s yst em Generic 3 does not support this c a pability. DEFINITY system Generic 3 only provides signaling on the D-channel. nISDN-BRI is only available on DEFINITY switches that support 5-law companding. See the DEFI NI TY Com munications System Generic 3 System Description and Specifications , 555-230-206, for further details. nThe word ‘‘endpoint’’ is used whenever statements a pply to BRI voice terminals, BRI data mo dules, and integrated BRI voice/data terminals. The DEFI NI TY switch supports the following across the ISDN-BRI interface to an endpoint: — A single voice call — A single data call — A voice call and a data call simultaneously — Two simultaneous data calls
Integrated Services Digital Network (ISDN) — Basic Rate Interface (BRI) Issue 3 March 1996 3-793 ISDN-BRI Endpoint Configurations There are two p ossible configurations with ISDN-BRI: nPoint-to-point — Only one en d point connected to a BRI port nMultipoint — Multiple endpoints connected to a BRI port. This configuration is also referred to as ‘‘passive b us configuration.’’ Because the DEFINITY system BRI provides non-blocking voice and data services, a maximum of two endpoints are supported on one BRI port in a multipoint configuration. The DEFI NI TY switch dynamically allocates the two B-channels on a BRI interface to handle voice and data requests. Because there are two B-channels, only two simultaneous service requests can be granted at any time on a BRI port to provide non-blocking service (either through point-to-point or multipoint configurations). When one endpoint is capable of providing two service requests (such as an integrated voice/data endpoint or an endpoint that supports two simultaneous %B-c hannel data calls), the endp oint must b e configured as point-to-point because both B-channels can potentially be used simultaneously by the two services. You can have the following endpoint types in the point-to-point configuration: nOne voice-only en d point nOne stand-alone data endpoint nOne integrated voice/data endpoint NOTE: Even though an integrated voice/data endpoint supports two service requests (that is, both voice and data), the integrated endpoint is not considered to be in multipoint configuration because it is only one endpoint. If two endpoints are each capable of providing only one service request, then they can b e administered on the same BRI port. Doing so provides a multipoint configuration. In this case, both B-channels can potentially be used simultaneously by two service requests and, since each BRI port provides two B-c hannels, no additional endpoints can be administered on this BRI port. You can have the following endpoint types in the multipoint configuration: nTwo voice-only endpoints nTwo stand-alone data endpoints nOne voice-only en d point and one stand-alone data endpoint NOTE: An en d point that supports two simultaneous B-channel d ata calls is not supported in a multi point configuration.
Feature Descriptions 3-794Issue 3 March 1996 Terminal Equipment Identifier (TEI) The terminal equipment identifier (TEI) is used to set up communication between the switch and an endpoint. The DEFI NIT Y syst em supports two types of TEIs: fixed and automatic. A fixed TEI endpoint supports one fixed TEI value (0 to 63), which is encoded into the terminal equipment, and the fixed TEI initialization procedure. When administering a fixed TEI endpoint, you must assign the endpoint’s fixe d TEI value to the “Station” or “Data Module” forms for that endpoint. If the en d point’s fixed TEI value d iffers from the TEI assigned to the “Station” or “Data Mod ule” forms for that endpoint, no communication is established between the switch and the endpoint. As a result, the endpoint is incapable of providing services. Normally, the manufacturer specifies the fixed TEI value encoded into the terminal or provides procedures for modifying the fixed TEI value. An automatic TEI endpoint supports automatic TEI initialization procedures and receives a TEI from the system during initialization. With automatic TEI endpoints, you are not entering any TEI values to the “Station” or “ Data Mod ule” forms. Only the automatic TEI endpoints are permitted to be used in multipoint configurations. Currently, all supported BRI en d points are automatic TEI endpoints. Service Profile Identifier (SPID) When more than one endpoint is connected to a BRI port (for example, a multipoint configuration), the switch uses the Service Profile Identifier (SPID) to associate endpoints with the administered station or data module extensions. The SPID enables the switch to differentiate b etween the endpoints connected to the same BRI port. You must administer the SPID on the “Station” or “Data Mod ule” forms, and then program the SPID in the BRI endpoint using the procedure in the endpoint’s users’ manual. During initialization, the en d point sends the SPID to the switch. The SPID administered on the “Station” or “Data Module Ad ministration” forms must match the SPID which is programmed into the endpoint. If the SPID on the “Station” or “Data Mod ule Ad ministration” forms does not match the SPID programmed into the endpoint, the system restricts service to that endpoint. SPID a dministration and programming are required for a multipoint configuration. However, SPID administration is o ptional in a point-to-p oint configuration because there is only one en d point connected to the BRI port. If the SPID is administered in a point-to-point configuration, it must match the SPID programmed into the endpoint. If the SPID is not administered, the switch uses the port to associate the endpoint to the administered station or data mo dule extension. NOTE: The BRI version of the PC Interface feature, the PC/ISDN Platform, is a non-initializing terminal and does not require a SPID. In fact, in the stand-alone configuration, this typ e of terminal cannot be assigned a SPID.
Integrated Services Digital Network (ISDN) — Basic Rate Interface (BRI) Issue 3 March 1996 3-795 ISDN-BRI Voice/Data Terminal Equipment Voice transmission on ISDN-BRI is provided by the 7505, 7506, 7507, 8503T, 8510, and 8520 voice terminals. All tests and services available to DCP users are also available to BRI users. Data transmission on ISDN-BRI is provided by the 7500 Data Module (or a compatible stand-alone d ata module) and the Asynchronous Data Module (ADM). The 7500 Data Module is a stand-alone unit that supports asynchronous or synchronous DCE and asynchronous DTE: nIn asynchronous mode, the 7500 supports packet- or circuit-switched data communications, and can be controlled via the front panel or the keyboard of a connected terminal. nIn synchronous mode, the 7500 supports circ uit-switched or nailed-up data communications, requires either the Multi-purpose Enhancement Board or the High-Speed Synchronous Enhancement Board, and can only be controlled via the front panel. The ADM may be used with asynchronous DTE as a data stand for 7500-series BRI voice terminals. Consisting of a b oard located inside the BRI voice terminal, the ADM allows the transmission of integrated voice and data through one voice terminal. (Separate extension numbers are used for the voice and data calls.) The ADM supports the Hayes command set for comp atibility with PC communications p a ckages. The PC/ISDN Platform provides both voice and data transmission and is part of the AT&T PC Interface package, Group 3. (Please see the PC Interface feature.) The PC/ISDN Platform can be used in a stand-alone (no associated voice terminal) configuration. When used this way or with a handset or headset, rather than one of the 7500 series voice terminals, the PC/ISDN Platform is a non-initializing terminal that does not support MIMs (Management Information Messages). This means that these ‘‘stations’’ do not go through an initialization procedure with the switch. It also means that they d o not require a SPID, and that they do not initiate or respond to MIMs. Even when used with a 7500 series voice terminal, the endpoint (combined PC and phone) should still be administered as a non-initializing terminal that does not supp ort MIMs. NOTE: When more than one PC/ISDN interface card is used on the same PC, each separate card provides a separate interface and is translated on the switch with its own ELL (Equipment Line Location) as a separate station. Endpoint Initialization To be fully operative, BRI endpoints must successfully comp lete endpoint initialization procedures. These procedures are usually done at installation time or as part of reconfiguration.
Feature Descriptions 3-796Issue 3 March 1996 Multipoint Configurations on BRI Ports In a p assive bus multipoint c onfiguration, the system supports two BRI endpoints per port, thus doubling the capacity of the BRI circuit pack. When changing the configuration of a BRI from point-to-p oint to multipoint, the original en d point need not be reinitialized. However, only endpoints that support SPID initialization can be administered in a multipoint configuration. Exchange of User Information The BRI protocol provides the users with the capability of exchanging up to 128 octets of user information end-to-end. The information is passed in the User-to-User Information IEs to the receiving endpoint without b eing interpreted by the switch. However, there are some limitations to the exchange of User Information IEs. ISDN-BRI Data Service Basic Digit Dialing Regular digit dialing is provid e d through the ADM. Digits from 0 to 9, ‘‘*’’ and ‘‘#’’ can be entered. This feature can be used by the user either from the set keypad or from the EIA terminal interface. Default Dialing Default Dialing is also an enhancement to the user dialing capabilities of the Data Call Setup feature. By either typ ing a d followed by or pressing the data button twice, if a default a d dress is administered, the switch terminates the call to the default a ddress. If no default dialing has been administered, the call is disconnected in less than one second. This feature and the Data Hotline feature are mutually exclusive. Data Hotline Data Hotline is a security feature that allows a user to enter a Dial command, with no address sp ecified, followed by a . The switch terminates the call to a preadministered hotline d estination. If a user enters an address, either intentionally or unintentionally, the call processing discards the address string received for the hotline end p oint. The call processing automatically routes the call just as if the hotline destination address had been entered by the user. This service does not imp ose any restriction on incoming calls received at the endpoint. NOTE: This feature and the Default Dialing feature are mutually exclusive. RETURN RETURN