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Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Instructions Manual
Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Instructions Manual
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DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1147 Administered Connections 20 Administered Connections failure: Auto Restoration and Fast Retry When an active AC drops prematurely, you must invoke either auto restoration or fast retry to determine whether auto restoration is attempted for an active AC. If you option AC for auto restoration and the connection was routed over SDDN trunks, auto restoration is attempted. During restoration, connections are maintained between the switch and both endpoints. In addition to allowing the active session to be maintained, AC also provides a high level of security by prohibiting other connections from intervening in active sessions. Auto restoration generally completes before the 60-second endpoint holdover interval. If auto restoration is successful, the call might be maintained (no guarantee). The restoration is transparent to the user with the exception of a temporary disruption of service while restoration is in progress. A successful restoration is reflected by the restored state on the status Administered Connection screen. Although the restoration was successful, the data session may not have been preserved. If auto restoration is not active or if the AC is not routed over SDDN trunks, the switch immediately attempts to reestablish the connection (fast retry). The switch also attempts a retry if the originating endpoint initiated the drop. With fast retry, connections are not maintained on both ends. Fast retry is not attempted for an AC that was last established via fast retry, unless the AC is active for at least two minutes. If auto restoration or fast retry fails to restore or reestablish the connection, the call drops and the AC goes into retry mode. Retry attempts continue, at the administered retry interval, as long as the AC is due to be active. Interactions nAbbreviated Dialing Use Abbreviated Dialing entries in the Destination field on the Administered Connection screen. Entries must comply with restrictions. nBusy Verification of Stations and Trunks This feature does not apply to access endpoints because they are used only for data. nCall Detail Recording For an AC that uses a trunk when CDR is active, the origination extension is the originator of the call. CDR is not available for access endpoints.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1148 Administered Connections 20 nClass of Restriction Reserve a COR for AC endpoints and SDDN trunks. This restricts endpoints that are not involved in AC from connecting to SDDN trunks or endpoints involved in AC. nClass of Service/Call Forwarding Assign to an AC endpoint a COS that blocks Call Forwarding activation at the endpoint. nData Call Setup Do not assign a default dialing destination to a data module when it is used in an AC. nData Hotline Do not assign a hotline destination to a data module that is used in an AC. nDigital Multiplexed Interface (DMI) Use DMI endpoints as the destination in an AC. DMI endpoints do not have associated extensions, so do not use them as the originator in an AC. nFacility Test Calls The feature does not apply to access endpoints because an access endpoint acts as an endpoint rather than as a trunk. nHunting Do not use a hunt-group extension as the origination extension of an AC. nModem Pooling If you require a modem in an AC, one is inserted automatically. If no modem is available, the connection drops. nNon-Facility Associated Signaling (NFAS) and D-Channel Backup Auto restoration for an AC that initially is routed over an NFAS facility may fail if the only backup route is over the facility on which the backup D-channel is administered. The backup D-channel may not come into service in time to handle the restoration attempt. nSet Time Command When you change the system time via the set time command, all scheduled AC are examined. If the time change causes an active AC to be outside its scheduled period, the AC drops. If the time change causes an inactive AC to be within its scheduled period, the switch attempts to establish the AC. If any AC (scheduled or continuous) is in retry mode and the system time changes, the switch attempts to establish the AC.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1149 Administrable Language Displays 20 nSystem Measurements Access endpoints are not measured. All other trunks in an AC are measured as usual. nTerminal Dialing Turn off terminal dialing for data modules involved in an AC. This prevents display of call-processing messages (INCOMING CALL,...) on the terminal. nTrunk Groups To invoke auto restoration, route an AC over SDDN trunks. Because a successful restoration depends on a SDDN path, keep some SDDN trunks idle. Administrable Language Displays You can display messages in English, French, Italian, Spanish, or a user-defined language on attendant consoles and phones that have 40-character displays. Detailed description You can select a language for messages that appear on phones and attendant consoles that have 40-character displays. You can choose one of five languages: English, French, Italian, Spanish, or “user-defined.” The meanings of the messages do not change, only the language. If your company uses 32-character display phones, you cannot choose a display language. These phones, including the hybrid MERLIN 7315H and 7317H phones, default to English. Related topics You can display the following types of information in English, French, Italian and Spanish: nAutomatic Wakeup nASAI nBusy Verification of Terminals and Trunks nCall Appearance buttons nCall Detail Recording nCall Progress Feedback Displays nClass of Restriction
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1150 Alternate facility restriction levels 20 nDate-Time Mode - Time Not Available nDays of the Week nMonths of the Year nDo Not Disturb nEnhanced Abbreviated Dialing nIntegrated Directory nISDN nLeave Word Calling nMalicious Call Trace nEmergency Access to Attendant nQueue Status nMiscellaneous Call Identifiers nParty Identifiers nProperty Management Interface nSecurity Violation Notification nStored numbers nStation hunting nTime-of-day Routing nTransfer messages Alternate facility restriction levels Alternate Facility Restriction Levels (AFRL) allows a second set of facility restriction levels within a route pattern or for lines or trunks. Attendants and system administrators can activate the alternate FRLs and change users’ access to lines and trunks. For example, a company can use AFRL to disable long-distance calling at night to prevent unauthorized staff from making long-distance calls. AFRL alters the route patterns for originating phones, originating trunks, and dialed authorization codes. If AFRL is active, Travelling Class Mark (TCM) is also set to a new FRL value and the TCM information recorded in the billing data (CDR) is the AFRL value, not the original TCM. !CAUTION: AFRL impacts Automatic Alternate Routing (AAR) and Automatic Route Selection (ARS) call routing because it may change routing preferences. Using AFRL on tandem and tie-trunk applications affects entire networks. Calls that are part of a cross-country private network and may have to be routed further may be blocked.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1151 Alternate facility restriction levels 20 Detailed description You can administer an ALT-FRL button to any attendant console or any station to activate and deactivate the AFRL. Pressing the ALT-FRL button may affect the status of other buttons. When AFRL is active, the user may notice a change in calling privileges. Consider notifying users of the changes, and prepare your telecommunications department to handle inquiries. Authorization codes Authorization codes prevent unauthorized access to various facilities. When a user dials an authorization code, your system checks the code. If it is not valid, the call is intercepted. If the code is valid, the system determines an associated COR and FRL. If AFRL is activated, the AFRL level is used. For example, a user whose FRL is 1 attempts a long-distance call. AFRL is active and maps to AFRL 3. The desired trunk has an FRL of 7, and the call is blocked. In the example below, an Authorization Code set to1234567 has a COR of 3 with an FRL 5, which is still not high enough to access the desired trunk. However, AFRL is active and FRL 5 maps to FRL 7. The call is allowed. Example of authorization codes with AFRLs 3 0 3 7 6 5 4 3 2 1AFRL FRL COR to FRL Table Authorization code to COR Table 7 5 FRL to AFRL Table 3 1 4 3 2 1FRL COR 3 3 2 3 COR 2222222 1234569 1234568 1234567 Authorization Code Trunk Desired COR is 4 Originator COR is 1 7 7 7 7 3 3
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1152 Answer detection 20 Answer detection For proper call detail recording and accurate billing, you need to know when your outgoing calls are answered. Answer detection means the method a switch uses to determine whether an outgoing call has been answered. Brief description DEFINITY ECS provides 3 ways to determine whether the called party has answered a call. Call classification A call-classifier circuit pack detects tones and voice-frequency signals on the line to determine whether a call has been answered. This method is fairly accurate: calls that are answered normally are usually classified correctly. But there are exceptions: nMiscellaneous tones, such as confirmation tones, may be classified as answers. nLoud background noise may activate answer detection, causing a call to be classified as answered even if the call is not connected. nSome calls that are answered may be incorrectly classified as fast busy signals. nCall classifier circuit packs also don’t recognize Special Information Tones (SIT) as answers. Of course, the system generates a call record for any call that is classified as answered whether the classification is correct or not. If Call Classification incorrectly classifies a call as answered, and then the call is subsequently answered, the call duration reported by CDR includes the both time between the incorrect classification and the actual answer and the remaining duration of the call. If you want to use call classification, on the System Parameter Customer-Options screen verify the Answer Supervision by Call Classifier field is y. If not, contact your Lucent representative. You also must have a call classifier circuit pack of the correct type. To find out what circuit packs you need, refer to DEFINITY ECS System Description.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1153 Answer detection 20 Network answer supervision The central office sends a signal to the originating switch to indicate that the far end has answered. If a call traveled over a private network before reaching the central office, the signal is transmitted back over the private network to the originating switch. This method is extremely accurate, but it is not available over most loop-start trunks (for example, CO, FX and WATS trunks in the US). Network answer supervision does not override answer supervision by timeout. Answer supervision by timeout You set a timer for each trunk group, using the Answer Supervision Timeout field on the Trunk Group screen. Or you set a circuit pack timer for the ports on that circuit pack, using the Outgoing End of Dial (sec) field on the Trunk Group screen. If the caller is off-hook when the timer expires, the system assumes that the outgoing call has been answered. This is the least accurate method. Calls that are shorter than the timer duration do not generate call records, and calls that ring for a long time produce call records whether they are answered. If network answer supervision is received, it overrides answer supervision by timeout. Interactions nCall Detail Recording Answer Detection provides more accurate call records where tone detection is possible and Network Answer Supervision is not received. nCall Prompting Call classification competes with Call Prompting for ports on the call classifier circuit pack. nCallVisor ASAI Call classification competes with CallVisor ASAI switch-classified calls for ports on the call classifier circuit pack. Answer Detection triggers reporting of a connect event to ASAI. Related topics Refer to ‘‘ Administering answer detection’’ on page 375 for instructions. Refer to ‘‘ Trunk Group’’ on page 980 for definitions of the fields used to administer answer detection.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1154 Attendant Features 20 Attendant Features This section describes the following DEFINITY ECS features that you may want to administer for your console operators: n‘‘Attendant Call Waiting’’ on page 1154 n‘‘Attendant Control of Trunk Group Access’’ on page 1156 n‘‘Attendant Direct Extension Selection’’ on page 1157 n‘‘Attendant Intrusion’’ on page 1158 n‘‘Attendant Override of Diversion Features’’ on page 1158 n‘‘Attendant Serial Calling’’ on page 1159 n‘‘Auto Start and Don’t Split’’ on page 1159 n‘‘Attendant Timers’’ on page 1160 n‘‘Visually Impaired Attendant Service’’ on page 1162 Each feature indicates how to administer the Attendant Console screen, Console Parameters screen, and other system-wide screens to enable the feature. Attendant Call Waiting Attendant Call Waiting allows an attendant-originated or attendant-extended call to a busy single-line telephone to wait at the called telephone so that the attendant can handle other calls. If you want the attendant to be able to send calls to busy single-line phones, set the Att. Call Waiting Indication field to Y on the Station screen for each single-line phone. When the single-line phone receives a waiting call, the phone user hears a call-waiting signal. You can administer the number of bursts (1, 2, or 3) in the call-waiting signal by changing the Attendant Originated Calls field on the Feature-Related System Parameters screen. If the attendant activates Attendant Call Waiting, and the Timed Reminder on Hold interval or the Return Call Timeout interval expires without the call being answered, the call returns to the console. You can modify these intervals on the Console Parameters screen.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1155 Attendant Features 20 Interactions nAutomatic Callback Activating Automatic Callback at the called telephone denies Attendant Call Waiting. nCall Coverage Attendant Call Waiting calls redirect to coverage if the called phone has Data Privacy or Data Restriction activated. If one of these conditions exists, and you assign call coverage to a telephone, and the user activates Send All Calls or coverage criteria is met, the call redirects to coverage. — The Coverage Don’t Answer interval specifies how long a call remains directed to the called telephone before redirecting to coverage. Attendant Call Waiting if applicable on the call, is active for the duration of the Don’t Answer interval only. At the end of this interval, the call redirects to coverage. — If the Return Call Timeout (Timed Reminder) interval expires before the Don’t Answer interval expires, the call does not go to coverage, but returns to an attendant console. If the Don’t Answer interval expires first, the call redirects to coverage, but can still return to the console if a coverage point does not answer the call before the Return Call Timeout. — If the Station Hunting field is assigned and the called telephone is busy, the call redirects to the Hunt To Station Assignment. nData Privacy, Data Restriction Activating Data Privacy or Data Restriction at the called telephone denies Attendant Call Waiting. nDDC and UCD Calls to a DDC or UCD group do not wait. However, they can enter the group queue, if provided. nLoudspeaker Paging Access Activating Loudspeaker Paging Access at the called telephone denies Attendant Call Waiting. nMusic-on-Hold Access The calling party hears music if the call is a trunk-transferred call administered to receive Music-on-Hold. Otherwise, the calling party hears ringing. nRecorded Telephone Dictation Access Activating Recorded Telephone Dictation Access at the called telephone denies Attendant Call Waiting.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Features and technical reference 1156 Attendant Features 20 Attendant Control of Trunk Group Access Attendant Control of Trunk Group Access allows the attendant to control trunk groups, and prevents telephone users from directly accessing a controlled trunk group. The attendant gains direct access to an outgoing trunk group by pressing the button assigned to that trunk group. Each attendant console has 12 designated Trunk Hundreds Select buttons that can be administered for Attendant Control of Trunk Group Access. You can also administer each console with up to 12 feature buttons for Trunk Hundreds Select buttons, which gives you up to a total of 24 buttons. Each Trunk Hundreds Select button has busy lamps that light when all the members of the associated trunk group are busy. If you administer one of the 2-lamp feature buttons on a basic console as a Trunk Hundreds Select button, use the bottom lamp as the busy lamp. These buttons have 2 additional lamps for Attendant Control of Trunk Group Access. The 2 lamps are: nWarn (warning) lamp Lights when the administered number of trunks are busy in the associated trunk group. You administer the Busy Threshold field on the associated Trunk Group screen to determine when to light this warning lamp. nCont (control) lamp Lights when the attendant activates Attendant Control of Trunk Group Access for the associated trunk group. Assign act-tr-grp and deact-tr-g buttons on the Attendant Console screen to allow the attendant to activate and deactivate control of the trunk group access. Interactions nAuthorization Codes Authorization codes do not collect when a trunk group has an incoming destination set to the attendant. nAutomatic Route Selection and Automatic Alternate Routing (ARS/AAR) Activating Attendant Control of Trunk Group Access removes the controlled trunk groups from the ARS and AAR patterns. Deactivating the feature reinserts the groups into the patterns. ARS calls do not route to the attendant. nQSIG QSIG trunks do not support Attendant Control of Trunk Group Access. nUniform Dial Plan Activating Attendant Control of Trunk Group Access removes the controlled trunk groups from preferences. Deactivating the feature enables the UDP to access the trunk groups.