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ATT DEFINITY Communications System Generic 3 Instructions Manual
ATT DEFINITY Communications System Generic 3 Instructions Manual
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Data Call Setu p Issue 3 March 1996 3-577 CHECK OPTIONS Placing a call Notifies calling terminal that data module options are incompatible. XX I N Q UEUECall in q ueue Current position of the user in queue. XX-indicates position. PROCESSING* Call in q ueue Notifies user when out of queue. Facility is available. TIMEOUT*Call in q ueue Notifies user when time has been exceeded. Call will b e terminated. FORWARDED* Receiving a call Equivalent to redirection notification signal. Called terminal has activated Call Forwarding and received a call, and call has been forwarded. INCOMING CALL-* Receiving a call Equivalent to ringing. INVALID ADDRESS Placing a callThe entered name is not in the Alphanumeric Dialing Table. PLEASE ANS- Receiving a call Originating voice terminal user has transferred call to data module using One-Button Transfer to Data. -TRANSFER Call is transferred to voiceNotifies calling terminal when Data Call Return-to-Voice occurs. CONFIRMED Activating or deactivating a featureEquivalent to confirmation tone. Feature request is accepted, or call has gone to a local coverage point. -OTHER ENDDuring a call Notifies user that the other end terminated the call. DISCONNECTED* Call is terminated Call or call attemp t is disconnected from system WAIT Placing a call Notifies user that normal processing is continuing. WA IT, X X IN QUEUEPlacing a call Notifies user that call entered a local hunt group queue. XX indicates position. * Bell sounds when message is displayed. Table 3-50. Call Progress Messages for Keyboard Dialing for DCP — Continued Displayed Message Application Meaning Continued on next page
Feature Descriptions 3-578Issue 3 March 1996 Data Call Setup for ISDN-BRI Modules Voice Terminal Dialing for ISDN-BRI Data Modules Allows ISDN-BRI voice terminal users to directly originate a d ata call. To set up a data call, the user just presses the Data button on the ISDN-BRI voice terminal, enters the desired number on the dial pad, and then presses the Data button again. The following data functions are not supported by BRI terminals: nOne b utton transfer to data nReturn-to-voice nData call pre-indication nVoice call transfer to data and data call transfer to voic e Data Terminal (Keyboard) Dialing for ISDN-BRI Data Modules Allows a user to set up and disc onnect data calls directly from a data terminal without using a voice terminal. The voice terminal functions of switchhook and the audible call progress tones are replaced with keyboard dialing and text known as c all progress messages. Unlike DCP, BRI is terminal d ependent, meaning that the BRI data module, not the switch, promp ts the user to enter information. NOTE: The 7500B Data Module also allows users to set up calls via its front panel. For more information on this feature, consult the 7500B Data Module User’s Manual , 555-021-717. Before the user can make a data call using Data Terminal Dialing, CMD: must a p pear on the screen of the terminal. To a ccess the CMD: prompt b efore placing a call, the user must p ress Enter on the keyboard a few times. If the CMD: prompt does not appear, the user must press Break A and T at the same time, and then press Enter. To make a data call, the user types dial, enters a space, types the desired telephone number, and presses Enter at the CMD: prompt (For examp le, dial 1234567). To disconnect a data call using Data Terminal Dialing, the user must first enter +++ to access the CMD: prompt. At the CMD: prompt, the user typ es end and presses ENTER. In a ddition to the numeral, #, and * characters found on a touch-tone pad, the dialing information may contain the following special characters: nSPACE,—, (, and) may be used to improve legibility. These characters are ignored by the system during dialing. n+ character (wait) may be used to interrupt or suspend dialing until dial tone is received from the distant switch.
Data Call Setu p Issue 3 March 1996 3-579 n, (pause) character may b e used to place a 1.5-second pause in dialing. (multiple, can be used). n% (mark) character may be used to indicate the following digits are for end-to-end signaling (touch-tone). This is required when the trunk is rotary. It is not required when the trunk is ‘‘touch-tone.’’ nUNDERLINE or BACKSPACE characters may be used to correct previously typ ed characters on the same line. n@ may be used to delete the entire line and start over with a new CMD: prompt. Each line of dialing information may contain up to 42 characters (the + and % characters count as two each). Examp les of dialing are as follows: nCMD: d 3478 nCMD: d 9+(201) 555-1212 nCMD: d 8, 555-2368 nCMD: d 9+555-2368+%9999+123 (remote access) Basic Digit Dialing Regular digit dialing is provided through the Asynchronous Data Module (ADM) or 7500B Data Module. Digits from 0 to 9, ‘‘*’’, and ‘‘#’’ can be entered. This feature can be used by the user either from the associated 7500 Series voice terminal keypad or from the EIA terminal interface. Alphanumeric Dialing Alphanumeric Dialing enhances Data Terminal Dialing by allowing a data terminal user to p lace a data call by entering an alphanumeric name. This capability makes Data Terminal Dialing both convenient and user-friendly. Instead of dialing a long string of numbers, the user can enter a simple alphanumeric name. For more detailed information, consult the Alphanumeric Dialin g feature description elsewhere in this chapter. Default Dialing Default Dialing enhances Data Terminal (Keyboard) Dialing by allowing a data terminal user to place a data call to a preadministered destination by either typing a d and entering Return at the CMD: prompt, or by pressing the data button twice. If no default dialing has been a dministered, the call will be disconnected in less than one second. The data terminal user c an still place calls to other destinations by typing a d and the complete address at the CMD: prompt, and then entering Return (normal Data Terminal Dialing or Alphanumeric Dialing). This feature is mutually exclusive with the Data Hotline feature. For more detailed information, see the Default Dialing feature d escription elsewhere in this chapter.
Feature Descriptions 3-580Issue 3 March 1996 Call Forwarding All Calls Call Forwarding All Calls allows incoming data calls to be redirected to another extension that is designated by the user. Activation/deactivation of the feature is done either by the attendant or by the forward ing party itself through the dialing of a feature access code. Data Hotline Data Hotline is a security feature. The switch will terminate the call to a preadministered hotline d estination. If a user enters an a ddress either intentionally or unintentionally, the call processing will discard the address string received for the hotline endpoint. The call processing will automatically route 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. This feature is mutually exclusive with the Default Dialing feature. Administered Connections An Administered Connection is an end-to-end connection between two access endpoints or d ata endpoints that is automatically established by the system whenever the system is restarted or the Administered Connection is a dministered and due to be active. The attributes of these connections are user-defined. To administer Administered Connections, use the “ Administered Connection” form via the SAT. Once the ADM has been a dministered as one endpoint of an administered connection, the system waits for the scheduled time to set u p the connection. At the scheduled time, the system establishes the connection and maintains it for the length of time specified. Once the call is accepted, the set will enter into the continuous mo de for the length of time specified. If the switch is reboote d during the continuous connection, the connection will reinitiate the call setup. At any time that the connection drops (for example, disconnected cabling), the switch will reinitiate the call setup. Call Request DEFI NI TY s yst em Generic 3 call p rocessing will handle all various BRI Bearer data call requests that are presently defined. Some capabilities that are not supported by AT&T terminals may be provided by a non-AT&T terminal. The switch will complete most call requests. For those capabilities that the switch does not support, a proper cause value will return back to the terminal. Cause Value BRI stations will receive a cause or reason code that identifies why the call is being cleared. The BRI data modules will convert certain cause values to text messages and display them for the user.
Data Call Setu p Issue 3 March 1996 3-581 Endpoint Initialization BRI en d points have to successfully complete end p oint initialization procedures in order to be fully operative. It is usually carried out at the time of installation, or as part of reconfiguration. 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 reinitialize d. However, only endpoints that support SPID initialization can be administered in a multipoint configuration. Exchange of User Information The BRI protocol provides the users the cap a bility of exchanging up to 128 octets of user information end-to-end. Disp layed messages are shown in Table 3-51. The information is passed in the User Information IEs to the receiving endpoint without being interpreted by the switch. However, there are some limitations to the exchange of User Information IEs. Table 3-51. Call Progress Messages for Keyboard Dialing for BRI Displayed Message Application Meaning CMD: Placing a call Equivalent to dial tone. Enter the desired number or feature access code followed by a carriage return or a line feed. RINGING Placing a call Equivalent to ringing tone. Called terminal (far-end) is ringing. BUSY Placing a call Equivalent to b usy tone. Called number is in use or out of service. ANSWERED Placing or receiving a callNotifies calling and called users that call has been answered. TRY AGAIN Placing a call Equivalent to reorder tone. System facilities are currently not available. DENIED Placing a call Equivalent to interc ept tone. Call c annot be placed as dialed. ABANDONED Receiving a call Notifies called user that the calling user abandoned the call. NO TONE Placing a call Notifies user that tone was not detected. Continued on next page
Feature Descriptions 3-582Issue 3 March 1996 CHECK OPTIONS Placing a call Notifies calling terminal that data module options are incompatible. XX I N Q UEUECall in q ueue Current position of the user in queue. XX-indicates position. PROCESSING* Call in q ueue Notifies user when out of queue. Facility is available. TIMEOUT*Call in q ueue Notifies user when time has been exceeded. Call will b e terminated. FORWARDED* Receiving a call Equivalent to redirection notification signal. Called terminal has activated Call Forwarding and received a call, and call has been forwarded. INCOMING CALL-* Receiving a call Equivalent to ringing. WRONG ADDRESS Placing a callThe entered name is not in the Alphanumeric Dialing Table. PLEASE ANS- Receiving a call Originating voice terminal user has transferred call to data module using One-Button Transfer to Data. CONFIRMED Activating or deactivating a featureEquivalent to confirmation tone. Feature request is accepted, or call has gone to a local coverage point. -OTHER ENDDuring a call Notifies user that the other end terminated the call. DISCONNECTED* Call is terminated Call or call attemp t is disconnected from system. WAIT Placing a call Notifies user that normal processing is continuing. * Bell sounds when message is displayed. Table 3-51. Call Progress Messages for Keyboard Dialing for BRI — Continued Displayed Message Application Meaning Continued on next page
Data Call Setu p Issue 3 March 1996 3-583 Considerations All systems have Data Call Setup c a pability. This facilitates data calling by eliminating the need to dedicate a voice terminal for d ata calls. DEFINITY system Generic 3 offers the enhancement of off-premises Multiple Line Dialing. BRI has a voice to data restriction. A voice terminal cannot call a data terminal, and a data terminal cannot call a voice terminal. BRI voice terminals cannot have Data Extension buttons. Although DCP sets have Data Extension buttons, these sets cannot have Data Extension buttons for BRI data extensions. When a voice terminal user places a data call to a digital data endpoint, and does not transfer the call to another digital d ata endpoint but uses a modem or acoustically coupled modem, the user must dial the Data Origination access code assigned in the system b efore dialing the distant endpoint. Data Call Preindication is activated by pressing a Data Extension button b efore dialing the distant data endpoint. Preindication is in effect until the associated Data Extension button is pressed again for a one-button transfer; there is no time-out. The numb er of assigned Data Extension b uttons per voice terminal is not limited. However, only one voice terminal can be assigned buttons that access the same data module. When placing outgoing or off-premises calls via keyboard dialing, the call progress message WAIT indicates recognition of the nature of the call and acceptance of the call. The ANSWERED text indicates completion of outp ulsing over the selected trunk, or if answer supervision or an answer tone is received. Interactions The following features interact with the Data Call Setup feature. nAbbreviated Dialing This feature can be used by voice terminal or Data Terminal (Keyboard) Dialing users on calls to data endpoints. Only 22 of the 24 available digits in an abbreviated dialing numb er can be used for keyboard dialing. The remaining two digits must contain the ‘‘wait’’ indicator for tone detection. nCall Coverage A hunt group ma de up of digital data end p oints should not be assigned a coverage path.
Feature Descriptions 3-584Issue 3 March 1996 nCall Forwarding All Calls Calls incoming to a data module can be forwarded. That is, calls can be redirected to another en d point. This feature is activated using Data Terminal (Keyboard) Dialing. If the forwarded-to endpoint is an analog data endpoint, and the calling user is a d igital endpoint, modem pooling is activated automatically. nData Call Hot Line Upon going off-hook for origination, the system automatically places a call to a predesignated local or off-premises destination. nDefault Dialing Default Dialing enhances Data Terminal (Keyboard) Dialing by allowing a data terminal user to place a data call to a preadministered destination. nInternal Automatic Answer (IAA) Data calls are not eligible for IAA. nModem Poolin g When modem p ools are provided, this feature is automatically available on data calls when the system ascertains the need for a conversion resource. The system automatically inserts the conversion resource. Data Call Preindication or Data Origination can also be used to indicate that a conversion resource is needed. nCDR Data Call CDR records the use of modem pools on trunk calls. nUCD UCD can provide a group of data modules or analog modems for answering calls to facilities, such as computer ports, connected to the data modules or mo dems. nISN Interface ISN consists of p acket data switches which support data calls between data endpoints and the system. The physical connection to the system is via the DLC board . The DLC provides eight ports for connection with asynchronous EIA RS-232C compatible Data Terminal Equipment to the ISN interface. Data Terminal (Keyboard) Dialing is used to access ISN endpoints. nWorld Class Tone Detection Multiple-Line Data Terminal Dialing is only supported if the administered Level of Tone Detection is ‘‘precise.’’ G3i-Global and G3V2 and later releases provide administration of tone detection options. The message the data call setu p feature sends to users vary according to which tone detection o ption is selected.
Data Call Setu p Issue 3 March 1996 3-585 If the tone detection option is not set to ‘‘precise,’’ and a d ata c all is set up over an analog trunk, the data call setup messages desc ribing the status of the called endpoint (that is, RINGING, BUSY, TRY AGAIN, etc .), changes according to which tone d etection option is selected. Tone Detection a p plies to non-ISDN trunk lines as well. Administration Data Call Setup does not require assignment as such; however, the following related items require administration by the System Manager: nData Origination Ac cess Code — Allow users to indicate a need for a conversion resource on an analog to digital data call origination. nPort Assignments — Assign the data modules, BCTs, DLCs, 7404D, analog modems. nModem Pooling — Assign Circuit Packs or ports. nData Extension buttons — Assign Data Extension buttons to multi-appearance voice terminals. nDefault Dialing — See the Default Dialing feature. nAlphanumeric Dialing — See the Alphanumeric Dialing feature. Hardware and Software Requirements Data Call Setup is a means of using data equipment to esta blish data calls. Requirements for data modules, voice terminals, and modems are as follows: nData Mo dules: Each DCP data module requires one port on a TN754 Digital Line circuit pack (TN413, TN754B support A-law). A DTDM shares the port with its associated voice terminal. Each BRI d ata module requires one port on a TN556 BRI circuit port pack. Each BRI p ort may be shared by two endpoints, with each endpoint providing either voice or data capability. To support ISDN-BRI, the switch requires the TN778 Packet Control circuit pack. An ADM shares the port with its associated BRI voice terminal. n7400A Data Mo dule: The 7400A Data Module may be used instead of an MTDM when supporting the combined Modem Pooling feature. The 7400A Data Mo dule supports asynchronous operation and provides a DCP interface to the switch and a RS-232c interface to the associated modem. The 7400A can operate in the stand-alone mode as a data module. n7500B Data Mo dule: The 7500B Data Module is a stand-alone unit that supports asynchronous or synchronous DCE and asynchronous DTE on the Basic Rate ISDN (BRI) switch interface. In asynchronous mode, the 7500B supports packet or circuit-switched data communications, and c an be controlled via the front panel or the keyboard of a connected terminal. The following optional enhancements are available for the 7500B in an
Feature Descriptions 3-586Issue 3 March 1996 asynchronous DCE c onfiguration: an RS-366 ACU interface and a second asynchronous EIA-232D interface. In synchronous mode, the 7500B supports circuit-switched or nailed-up data communications, requires either the Multi-purpose Enhancement Board or the High-Speed Synchronous Enhancement Board, and c an only b e controlled via the front panel. In order to be configured as a synchronous DCE, the 7500B must have either the Multi-purpose Enhancement Board or the High-Speed Synchronous Enhancement Board. When configured as an asynchronous DTE, the 7500B provides an EIA-232D interface and supports full-d uplex data transmission at rates of up to 19200 bps. This configuration is most commonly used for modem pooling applications. Regardless of the configuration, the 7500B provides no voice functions and is not used with voice terminals. n7400C HSL: 7400C High Speed Link is a d ata service unit that allows d ata equipment to access the DCP data services. It provides synchronous data transmission at speeds of 56 and 64 kb ps and provides a link to high speed data networks. It c an be used for Group 4 Fax applications that will include electronic mail and messaging and electronic storage of printed documents and graphics. It can also be used for video teleconferencing and LAN interconnect applications. n7400D Series or CALLMASTER Terminals: For shared use of voice and data, each Voice Terminal requires one port on the following Digital Line circuit packs: the 4-wire TN754, TN413, or the TN754B. The TN754B is A-law or Mu-law selectable. 603EI CALLMASTER uses the TN754, TN754B, or TN2181 circuit pack. The TN2181 is a 2-wire, 16-port, A-law/Mu-law selectable circuit pack. The 7403D and 7405D voice terminals require an optional digital terminal data module. The 7404D requires an optional messaging cartridge, the 7406D requires an optional 703A Data Stand, and the 7407D requires an optional 702A DSU for connection to associated data terminals. n7500 Series ISDN Voice Terminals: Each 7500 Series ISDN Voice Terminal requires one p ort on the TN556 BRI p ort circuit pack. Each voice terminal requires an optional ISDN ADM to support asynchronous DTE. Consisting of a board located inside the BRI voice terminal, the ISDN ADM allows the transmission of inte grated voice and data through one voice terminal. The ISDN ADM shares the p ort with its associated voice terminal and supports the Hayes command set for comp atibility with PC communications packages. nModems: Each mo dem requires one port on a TN742 or TN746B (A-law) Analog Line circuit pack. (Administration designates the modem as a 2500-series voice terminal and assigns an extension number. A modem is connected to the port instead of a voice terminal. Ac c ess is through the assigned extension number.)