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ATT DEFINITY Communications System Generic 3 Instructions Manual
ATT DEFINITY Communications System Generic 3 Instructions Manual
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Distinctive Ringing Issue 3 March 1996 3-667 Distinctive Ringing Feature Availability Distinctive Ringing is available with all Generic 3 releases. This feature is called ‘‘Ringing Distinctive’’ in G2. Description Helps voice terminal users and attendants distinguish between various types of incoming calls. The ringing cycle, which begins when a voice terminal or attendant console receives an incoming call, is heard b y the voice terminal user or attendant. There are three basic call types - external, internal, and p riority. There are three types of distinctive ringing cycles (1-, 2-, and 3-b urst); and with G3iV1, and G3vsV1/G3sV1 the association between basic call types and ring cyc le types is FIXED (1-b urst = internal, 2-burst = external, 3-burst = priority). With G3i-g lobal, G3rV1, G3V2, and later releases, this association between basic call types and ring cycle types is administrable with the d efault b eing the same as G1. In a d dition to these basic call ringing patterns, there are ringing signals for (Automatic and Dial) Interc om calls, Manual Signaling, and Redirection Notification. There are a dministrable distinctive alerting patterns that can be administered for internal, external, and priority calls. These are system-wide patterns which are administered on the “ System Parameters Features” form. The associated call types, types of users, and ringing cycles are as follows: NOTE: Table 3-53 shows the default values used in the Unite d States. For further details, see the World Class Tone Generation section later in this chapter
Feature Descriptions 3-668Issue 3 March 1996 . Table 3-53. Distinctive Ringing Defaults in United States If the Default Ringing Cycle Is: Then the Call Type Is: User One-burst ringing (1.2 on, 4.0 off repetitive)Internal voice terminal, internal tie trunk, and Remote A c cessAll voice terminals Intercom Single-line voice terminals Two-burst ringing (0.2 on, 0.4 off; 0.6 on, 4.0 off repetitive)Attendant-extended, attendant-originated, and incoming trunk, including external tie trunkAll voice terminals Three-burst ringing (0.2 on, 0.1 off; 0.2 on, 0.1 off; 0.6 on, 4.0 off repetitive)Automatic Callback, Priority Calling, and Ringback Queuing callbac kSingle-line voice terminals Three-burst ringing (0.1 on, 0.1 off; 0.1 on, 0.3 off; 0.6 on, 4.0 off repetitive)Multi-appearance voice terminals Single tone (0.6 on, 4.6 off repetitive)Intercom Multi-appearance voice terminals Single tone (0.2 on) Manual Signaling Multi-appearance voice terminals Single tone (0.2 on) Redirection Notification All voice terminals
Distinctive Ringing Issue 3 March 1996 3-669 Table 3-54 lists the call types and their ringing cycles received at attendant consoles. Table 3-55 lists the call types and their ringing cycles received at attendant consoles. Considerations Distinctive Ringing allows the user to i dentify the type of incoming call. By knowing the type of incoming call, the user is able to answer each call in a suitable manner for that typ e of call. The two- and three-burst ringing is optional only on single-line voice terminals. If Distinctive Ringing is disabled, the user hears a one-burst repetitive tone for all incoming calls. This is useful for equipment interfaced by analog lines, especially if the Off-Premises Station feature is used. Table 3-54. Distinctive Ringing Defaults in United States Received at Attendant Consoles If the Default Ringing Cycle Is: Then the Call Type Is: Low-pitched tone (0.4 on, 1.2 off repetitive)Incoming call High-pitched tone (0.4 on, 1.2 off repetitive)Attendant Recall call and when any call associated with a timed reminder interval returns to the console Low-pitched tone (0.25 on, 0.8 off repetitive)Calls waiting in queue Table 3-55. Call Types and Ringing Cycles Received at Attendant Consoles Call Type Default Ringing Cycle (In Seconds) Incoming call Low-pitched tone (0.4 on, 1.2 off repetitive) Attendant Recall call and when any call associated with a timed reminder interval returns to the consoleHigh-pitched tone (0.4 on, 1.2 off repetitive) Calls waiting in queueLow-pitched tone (0.25 on, 0.8 off repetitive)
Feature Descriptions 3-670Issue 3 March 1996 A single distinctive ring cycle is used for each new incoming call when a voice terminal is off-hook or a headset is being used. The CALLMASTER. terminal is alerted with a single ring cycle whenever either the headset or handset is plugged into the headset jack. Interactions The Distinctive Ringing cycles are altered when the Personalized Ringing feature is use d. Administration Ringing is a standard system feature. No a dministration is required exc ept for the following items which are set by the System Manager: nFor G3i-Global, G3rV1, G3V2and later releases, the various ringing cycles and what they are for. NOTE: Typically, the one-, two-, and three-burst distinctive ringing patterns are administered for internal, external, and priority calls, respectively. nRedirection Notification can be assigned for any voice terminal. nDistinctive two- or three-burst ringing can be disabled for single-line voice terminals.
DS1 Trunk Service Issue 3 March 1996 3-671 DS1 Trunk Service Feature Availability This feature is available with all Generic 3 releases. Description Provides a digital interface for the following: nVoice-Grade DS1 Tie Trunks nAVD DS1 Tie Trunks nRobbed-Bit Alternate Voice/Data (RBAVD) DS1 Tie Trunks nDMI Tie Trunks nISDN-PRI Trunks nCO Trunks nFX Trunks nRemote Access Trunks nWATS Trunks nDID Trunks nOff-Premises Stations nAccess Endpoints (G3i) Voice Grade DS1 Tie Trunks The Voice-Grade DS1 tie trunks are an alternative to four-wire analog E&M tie trunks and may be used to interface with other properly equipped switching systems. Voice-Grade DS1 tie trunks can also be used as the following: nETN or TTTN ti e trunks nMain/Satellite tie trunks nTie trunks used to interface with EPSCS and CCSA networks nRelease link trunks for CAS nAccess Trunks. The TN722B, TN767, or TN464C/D DS1 circuit pack is used to support Voice-Grade DS1 tie trunks in the Rob b ed Bit Signaling mode. The Robbed Bit Signaling mode supports 24 trunks for transmission on the circuit pack because
Feature Descriptions 3-672Issue 3 March 1996 the least significant b it (robbed) in every sixth frame of data transmission is replaced by a signaling bit. This typ e of tie trunk uses DS1 transmission facilities in the USA and Canada DS1 format, which is a 1.544 Mbps digital signal that consists of a 1.536 Mb ps signal multiplexed with an 8 kbps framing signal. NOTE: The TN767 and the TN464C and later revisions of the DS1 circ uit packs provide a DSX1 interface. AVD Tie Trunks AVD DS1 tie trunks permit alternate voice and data calling between a Generic 3 and another switch. The other switch can be a System 75 R1V2 or later, System 85 R2V1 or later, a DEFINITY system Generic 1, Generic 2, or Generic 3. AVD DS1 tie trunks can be used to connect the system with other digital switches. The TN722B, TN767, and TN464 DS1 circuit pack (TN464 supports A-law) is used to support AVD DS1 tie trunks in the Common Channel Signaling mode. The Common Channel Signaling mode supports 23 trunks for d ata transmission and 1 trunk for signaling purposes. (32 channel signalling mode is supported with the TN464B/C/D boards.) This typ e of tie trunk uses DS1 transmission facilities in the USA and Canada DS1 format, which is a 1.544 Mbps digital signal that consists of a 1.536 Mb ps signal multiplexed with an 8 kbps framing signal. Tie Trunks Rob bed-Bit Alternate Voice/Data DS1 tie trunks permit alternate voice and data calling between Generic 3 and another switch. The other switch can be a DEFI NI TY s yst em Generic 1, Generic 2, or Generic 3. Rob bed-Bit Alternate Voice/Data DS1 tie trunks can be used to connect the system with other digital switches. Rob bed-Bit Alternate Voice/Data DS1 tie trunks can be used to dynamically access voice/data SDN Services. For normal AVD facilities, modem pool resources are not automatically inserted. With Ro bb e d-Bit Alternate Voice/Data facilities, a data origination access code can be used to force modem pool insertion on the call. The TN722B, TN767, or TN464 DS1 circuit pack is used to support Robbed-Bit Alternate Voice/Data DS1 tie trunks in the Ro bb e d-Bit Signaling mode.
DS1 Trunk Service Issue 3 March 1996 3-673 This typ e of tie trunk uses DS1 transmission facilities in the USA and Canada DS1 format, which is a 1.544 Mbps digital signal that consists of a 1.536 Mb ps signal multiplexed with an 8 kbps framing signal. DMI Tie Trunks DMI tie trunks use Bit-Oriented Signaling or ISDN-PRI Message-Oriented Signaling to interface with a host computer, another PBX, or a p u blic or private network. The TN722B DS1 Tie Trunk circuit pack supports Voice-Grade DS1, AVD DS1, and DMI tie trunks in the Bit-Oriented Signaling modes. In addition, the TN767 and TN464 DS1 circuit packs supports DMI tie trunks in the ISDN-PRI signaling mode. For details on the DMI signaling modes, see the Digital Multiplexed Interface feature description, elsewhere in this section. This typ e of tie trunk uses DS1 transmission facilities in the USA and Canada DS1 format, which is a 1.544 Mbps digital signal that consists of a 1.536 Mb ps signal multiplexed with an 8 kbps framing signal. When the DS1 circuit pack is assigned ISDN-PRI signaling, Robbed Bit Signaling and ISDN-PRI signaling can be used over the same DS1 interface. Trunk groups administered with a c ommunication typ e of ‘‘voice’’ can use Robbed Bit signaling and trunk groups administered with a communication type of ‘‘isdn’’ can use the ISDN-PRI signaling. CO, FX, and WATS Trunks When the TN767 or TN464 DS1 circuit pack interface is used to provide CO, FX, or WATS trunk g roup service with incoming and outgoing types of g round start or loop start, Ro bb e d Bit Signaling must be used. When the DS1 interface is used to provide CO, FX, or WATS trunk g roup service with incoming/outgoing dial types administered as auto/auto, auto/delay, auto-immediate, or auto/wink, either Common Channel Signaling or Ro bb e d Bit Signaling can be used. When the DS1 interface is used to provide CO, FX, or WATS trunk g roup service with incoming and outgoing types of ground start or loop start, outgoing trunk calls do not receive answer supervision. Instead, the answer supervision is faked by the DS1 circuit pack based on a timer administered on the “Trunk Group” form. Remote Access Trunks Signaling for remote access trunks is depends on the trunk group and incoming/outgoing dial types.
Feature Descriptions 3-674Issue 3 March 1996 DID Trunks When the DS1 interface is used to provide DID trunk group service, Robbed Bit Signaling must be used. Off-Premises Stations DS1 off-premises stations d o not receive system message waiting indications. When the DS1 interface is used to provide off-premises stations, Robb ed Bit Signaling must be used. Access Endpoints Individual channels of a DS1 can be assigned extensions with the Ac cess Endpoint function. Access Endpoints are discussed in the Administered Connections feature description elsewhere in this manual. Considerations DS1 tie trunks offer voice and data transmission, via DS1 d igital facilities, at lower cost and faster speed than conventional analog trunks. Data transmission costs are lower than if large analog trunk groups are used. In the future, di gital transmission is expected to cost less, thus adding to savings over analog facilities. Interactions The following features interact with the DS1 Trunk Service feature. nCAS AVD tie trunks and RLTs can share the same DS1 interface. RLTs cannot, however, be administered or a communication type of avd on the RLT Trunk screen. nDCS AVD DS1 tie trunks can only be used in a DCS between two DEFINITY system Generic 1s or between a DEFINITY system Generic 1 or Generic 3 and System 75, System 85, or DEFI NI TY s yst em Generic 2.1. nETN AVD DS1 tie trunks c an only b e used in an ETN between two Generic 1s or between Generic 1 or Generic 3 and System 75, br System 85, or DEFI NI TY s yst em Generic 2.1.
DS1 Trunk Service Issue 3 March 1996 3-675 nModem Poolin g When AVD DS1 tie trunks are used, a conversion resource is not automatically inserted into the connection because the system cannot determine whether the transmission is voice or data. A conversion resource is connected between Voice-Grade tie trunks and digital endpoints. nPrivate Network Access AVD DS1 tie trunks cannot be used as EPSCS or CCSA access trunks. Administration DS1 trunks are assigned on a per-line basis by the System Manager. The following items require administration: nDS1 Circuit Pack — Assign the circuit pack to the system b efore administration of the associated trunks. nSynchronization Plan — Ad minister to provide synchronization between the switch’s DS1 circ uitry and the digital facilities that the switch is connected to. nTrunk Groups — Associate the trunks to groups, if desired. Hardware and Software Requirements One TN722, TN767, or TN464 DS1 circuit pack is required for every 24 trunks using Robbed Bit Signaling or for every 23 trunks using Common Channel Signaling. If ISDN-PRI signaling is used, a TN765 Processor Interface circuit pack is required for G3vs/G3s and G3i (or for G3i the TN778 Packet Control) in a d dition to the DS1 circuit pack. G3r requires the TN1655 packet interface (PKTINT) circ uit pack. A TN464 circuit pack is required to support 32 trunks. No a d ditional software is required.
Feature Descriptions 3-676Issue 3 March 1996 Do Not Disturb Feature Availability This feature is available with all Generic 3 releases. Description Allows guests, attendants, and authorized front desk voice terminal users to request that no calls, other than priority calls, terminate at a particular extension number until a specified time. At the specified time, the system automatically deactivates the feature and allows calls to terminate normally at the extension. Do Not Disturb is a form of Termination Restriction that is associated with an automatic deactivate time. When Do Not Disturb is active at an extension number, the user will receive only those calls associated with the Automatic Callback, Automatic Wakeup, and Priority Calling features, and those calls that are redirected to that extension via the Call Coverage and Call Forwarding All Calls features. All other call attempts will redirect to a recorded announcement, an attendant, or intercept tone, as specified by the System Manager through administration. This feature may be dial or button accessed from voice terminals equipp e d with touch-tone dialing or button accessed from attendant consoles and front desk terminals. Users with rotary-dial terminals must call the attendant or front desk user to request Do Not Disturb. When the Do Not Disturb feature is activated, the system supplies voice prompting to voice terminal users or display prompting to attendants and front desk users. Feature Activation by Voice Terminal Users A voice terminal user can activate Do Not Disturb by dial access or by button access if a Do Not Disturb b utton is assigned to the voice terminal. If dial access is used, the system automatically deactivates the feature at the requested time. If button access is used, deactivation is not automatic . nDial Access When a user dials the Do Not Disturb feature access code, the system generates voice messages (through the use of a Speech Synthesis circuit pack) that direct the user to enter a deactivate time. The DTMF buttons on the voice terminal are used to enter this information. The user may later change or delete the request b y dialing the Do Not Disturb FAC a gain and entering the required information.