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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 Screen reference 987 Trunk Group 17 Dial Access This field controls whether users can route outgoing calls through an outgoing or two-way trunk group by dialing its trunk access code. Allowing dial access does not interfere with the operation of AAR/ARS. !SECURITY ALERT: Calls dialed with a trunk access code over WATS trunks bypass AAR/ARS and aren’t restricted by facility restriction levels. For security, you may want to leave the field set to n unless you need dial access to test the trunk group. This field also controls the signaling used by members in public network digital trunk groups. This field displays if the Group Type field is access, aplt, rlt, tandem, or tie. Entries in this field affect which timers appear on the Administrable Timers page. DIOD trunks support pulsed and continuous E&M signaling in Brazil and discontinuous E&M signaling in Hungary. Refer to DEFINITY ECS Application Notes for Type Approval for more information. Use the following entries for DIOD trunks. Use these values only when all trunk group members are assigned to a TN464F (or later version) or TN2464 circuit pack. pulsed cont discont blank Brazil E&M trunks can use continuous and pulsed E&M. For continuous E&M signaling, set this field to cont. For pulsed E&M signaling, set this field to pulsed. A blank setting provides R2 signaling. Hungary uses discontinuous E&M signaling when this field is dis. Valid entries Usage y Allows users to access the trunk group by dialing its access code. n Does not allow users to access the trunk group by dialing its access code. Attendants can still select this trunk group with a Trunk Group Select button. Valid entries Usage
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Screen reference 988 Trunk Group 17 Busy Threshold Use this field if you want attendants to control access to outgoing and two-way trunk groups during periods of high use. When the threshold is reached and the warning lamp for that trunk group lights, the attendant can activate trunk group control: internal callers who dial out using a trunk access code will be connected to the attendant, and the attendant can prioritize outgoing calls for the last remaining trunks. Calls handled by AAR and ARS route patterns go out normally. Night Service This field sets the destination to which incoming calls go when Night Service is in operation. If a Night field on the Group Member Assignments page is administered with a different destination, that entry will override the group destination for that trunk. CPE, DID, and DIOD trunk groups do not support night service. Tip: Whenever possible, use a night service destination on your switch: otherwise some features won’t work correctly, even over a DCS network. Valid entries Usage 1 to 99 ( G3si/csi)Enter the number of trunks that must be busy in order to light the warning lamp on the Attendant Console. For example, if there are 30 trunks in the group and you want to alert the attendant whenever 25 or more are in use, enter 25.1 to 255 (G3r) Valid entries Usage blank Leave this field blank if the Trunk Type (in/out) field is not auto/…. An extension number (can be a VDN)Enter the extension of your night service destination. attdCalls go to the attendant and are recorded as Listed Directory Number (LDN) calls on call detail records.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Screen reference 989 Trunk Group 17 Queue Length Outgoing calls can wait in a queue, in the order in which they were made, when all trunks in a trunk group are busy. If you enter 0, callers receive a busy signal when no trunks are available. If you enter a higher number, a caller hears confirmation tone when no trunk is available for the outgoing call. The caller can then hang up and wait: when a trunk becomes available, the switch will call the extension that placed the original call. The caller will hear 3 short, quick rings. The caller doesn’t need to do anything but pick up the handset and wait: the switch remembers the number the caller dialed and automatically completes the call. This field appears when the Direction field is outgoing or two-way. Tip: Enter 0 for DCS trunks. Country This field is administered at installation and sets numerous parameters to appropriate values for the public network in which the switch operates. For example, the value of this field, with the values of the Trunk Termination and the Trunk Gain fields, determines the input and trans-hybrid balance impedance requirements for ports on TN465B, TN2146, and TN2147 circuit packs. This field appears for the trunk groups that connect DEFINITY ECS to a central office in the public network — CO, DID, DIOD, FX, and WATS trunk groups. !CAUTION: Don’t change this field. If you have questions, contact your Lucent representative. Valid entries Usage 0 to 100Enter the number of outgoing calls that you want to be held waiting when all trunks are busy. Valid entries Usage 1 to 25Set at installation. 11If the Country field is 11, DEFINITY ECS is administered for Public Network Call Priority (Call Retention and Rering). 14If the Country field is 14 and the Group Type is DID or DIOD, the CO Type field appears.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Screen reference 990 Trunk Group 17 Ve rs i o n Use this field to adjust the signaling on multi-country CO trunk circuit packs. Entries in this field adjust signaling characteristics on these circuit packs to match the signaling characteristics of the public network in a specific country. The field appears only for CO, FX, and WATS trunk groups when the Country field is 5, 16, or 23. 15If the Country field is 15, DEFINITY ECS is administered for Public Network Call Priority (Intrusion and Rering). Also, the Protocol Type field appears for Group Type DID or DIOD. 18If the Country field is 18, DEFINITY ECS can be administered for Public Network Call Priority (Mode of Release Control, Forced Disconnect, and Rering). 23If the Country field is 23 and the Group Type field is either CO or DID, DEFINITY ECS is administered for Block Collect Calls. Valid entries Usage If the Country field is 5, the Version field only controls TN2147 ports. a Enter a to use standard signaling for the Netherlands public network. bEnter b to use country 1 (U.S.) signaling. The value b is appropriate if your switch is connected to a central office using an Ericcson AXE-10 switch. If the Country field is 16 or 23, the Version field sets the input impedance value and only controls TN465C (vintage 2 or later) ports. a Enter a to set input impedance to 600 Ohms. bEnter b to set input impedance to 900 Ohms. The value b is appropriate in Brazil. Valid entries Usage
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Screen reference 991 Trunk Group 17 Incoming Destination Use this field to set the destination for all incoming calls on trunk groups such as CO, FX, and WATS that must terminate at a single destination. The destination you enter here is also the default night service destination unless you enter a different destination in the Night Service field. Appears when the Direction field is incoming or two-way. Comm Type Use this field to define whether the trunk group carries voice, data, or both. NOTE: Comm Types of avd, rbavd and data require trunk member ports on a DS1 circuit pack. Valid entries Usage blank Leave this field blank if the Trunk Type (in/out) field is not auto/…. an extension numberCalls go to the extension you enter. You may enter any type of extension, though typically the extension entered here identifies a VDN, a voice response unit, or a voice messaging system. Night service overrides this setting when it’s active. attdCalls go to the attendant and are recorded as Listed Directory Number (LDN) calls on call detail records. Valid entries Usage avd Enter avd for applications that mix voice and Digital Communication Protocol data, such as video conferencing applications. The receiving switch discriminates voice calls from data calls and directs each to an appropriate endpoint. Neither originating nor terminating switches insert a modem poll for any calls when Comm Type is avd. The Signaling Mode field on the DS1 circuit pack screen must be set for either common-chan or CAS signaling. dataEnter data only when all calls across the trunk group originate and terminate at DEFINITY ECS digital data endpoints. Public networks don’t support data: supported by Lucent’s DCP protocol, this entry is used almost exclusively for the data trunk group supporting DCS signaling channels. The Signaling Mode field on the DS1 circuit pack may be set to robbed-bit or com mon-chan.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Screen reference 992 Trunk Group 17 Auth Code This field affects the level of security for tandemed outgoing calls at your switch. This field appears if the Direction field is incoming or two-way, and it can only be y if the Authorization Codes field is y on the System-Parameters Customer-Options screen. Digit Absorption List This field assigns a digit absorption list, when used, to a trunk group that terminates at a step-by-step central office. Prefix-1 Use this field for outgoing and two-way trunk groups handling long distance service. This field appears for CO, FX, and DIOD trunk groups. rbavdFor digital trunk groups that carry voice and data with robbed-bit signaling. The Signaling Mode field on the DS1 circuit pack screen must be set to robbed-bit unless mixed mode signaling is allowed on the DS1 circuit pack. In that case, the Signaling Mode field may be isdn-ext or isdn-pri. voice For trunk groups that carry only voice traffic and voice-grade data (that is, data transmitted by modem). Analog trunk groups must use voice. Valid entries Usage y/n Enter y to require callers to enter an authorization code in order to tandem a call through an AAR or ARS route pattern. The code will be required even if the facility restriction level of the incoming trunk group is normally sufficient to send the call out over the route pattern. Valid entries Usage 0 to 4Enter the number of the digit absorption list this trunk group should use. Valid entries Usage y/n Enter y to add the prefix “1” to the beginning of the digit string for outgoing calls. Do not enter y for trunk groups in AAR or ARS route patterns. Valid entries Usage
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Screen reference 993 Trunk Group 17 Trunk Flash Some central offices allows users to activate special services (call waiting or 3-way conferencing, for example) by flashing the switch hook on their phone. If an outside caller does this while they’re on a call with one of your users, your switch may interpret the flash as a disconnect signal and end the call. Use this field to prevent such accidental disconnections. Toll Restricted BCC Generalized Route Selection uses the BCC to select the appropriate facilities for routing voice and data calls. Far-end tandem switches also use the BCC to select outgoing routing facilities with equivalent BCC classes.The entry in the Bearer Capability Class field is used to select the appropriate facilities for incoming ISDN calls. DEFINITY ECS compares the entry in the BCC field to the value of the Bearer Capability information element for the incoming call and routes the call over appropriate facilities. For example, a call with BCC 4 will only be connected through facilities that support 64 kbps data transmission. The Bearer Capability Class field appears when all of the following are true: nEither the ISDN-BRI Trunks field or the ISDN-PRI field on the System Parameters Customer-Options screen is y. nThe Group Type field is access, co, fx, tandem, tie, or wats. nThe Comm Type field is data, avd, or rbavd. Valid entries Usage y/n Enter y so that your switch won’t disconnect incoming callers who flash their switch hook to activate central office services. Valid entries Usage y Enter y to prevent toll-restricted users from using a trunk access code to make restricted outgoing calls over this trunk group. nEnter n if the Outgoing Dial Type field is automatic or if you don’t want to restrict access. Valid entries Usage 0 For voice and voice-grade data 1For 56 kbps synchronous data transmitted with robbed-bit signaling
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Screen reference 994 Trunk Group 17 ITC The Generalized Route Selection feature, part of the automatic routing technology used in DEFINITY ECS, compares the line coding of available digital facilities and selects appropriate routes for voice and data calls. The Information Transfer Capability field appears when the Comm Type field is data, avd, or rbavd and the BCC field is not 0. Tip: To find out what kind of line coding a trunk group member uses, check the Line Coding field on the DS1 Circuit Pack screen for the DS1 port to which the member is assigned. Trunk Type Use this field to control the seizure and start-dial signaling used on this trunk group. Entries in this field vary according to the function of the trunk group and must match the corresponding setting on the far-end switch. This field appears for CO, DID, FX, and WATS trunk groups. Refer to ‘‘ Transmission and supervisory signaling’’ on page 1581 for more information. Procedures in ‘‘ Managing trunks’’ on page 349 give specific suggestions for signaling to use with different types of trunk groups. 2Less than 19.2 kbps synchronous or asynchronous data 3For 64 kbps data and LAPD protocol 4For 64 kbps data on unrestricted channels Valid entries Usage rest (ricted) Restricted trunks use ami-basic or ami-zcs line coding and can carry only restricted calls. unre(stricted) Unrestricted trunks use b8zs, hdb3, or cmi line coding and can carry restricted or unrestricted calls. A trunk group with an unrestricted ITC may have only unrestricted trunks as members. Valid entries Usage ground-start Use ground-start signaling for two-way trunks whenever possible: ground-start signaling avoids glare and provides answer supervision from the far end. loop-startIn general, try to use loop-start signaling only for one-way trunks. Loop-start signaling is susceptible to glare and does not provide answer supervision. Valid entries Usage
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Screen reference 995 Trunk Group 17 auto/autoThe term before the slash tells the switch how and when it will receive incoming digits. The term after the slash tells the switch how and when it should send outgoing digits. nauto — Used for immediate connection to a single preset destination (incoming CO trunks, for example). No digits are sent, because all calls terminate at the same place. ndelay — The sending switch does not send digits until it receives a delay dial signal (an off-hook signal followed by an on-hook signal) from the far-end switch, indicating that it’s ready to receive the digits. nwink — The sending switch does not send digits until it receives a a wink start (momentary off-hook) signal from the far-end switch, indicating that it’s ready to receive the digits. nimmed — The sending switch sends digits without waiting for a signal from the far-end switch. auto/delay auto/immed auto/wink 2-wire-ac These entries are used with CO trunks in Russia: enter the type of connection to your central office. Check with you network service provider if you don’t know what type of connection they’re using. To use these entries, the Country field must be 15 and the CO trunks must use ports on a TN2199 circuit board. 2-wire-dc 3-wire Valid entries Usage
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Screen reference 996 Trunk Group 17 Trunk Type (in/out) Use this field to control the seizure and start-dial signaling used on this trunk group. The setting of the Trunk Signaling Type field can affect the entries allowed in this field. In addition, settings may differ for incoming and outgoing trunks. Tip: When incoming trunks use the setting immed/immed, the far-end switch seizes the trunk and sends digits without waiting for acknowledgment from the receiving switch. When traffic is heavy, the receiving switch may not immediately attach a Touch Tone Receiver to a call and therefore lose digits. Use wink-start trunks or increase the dial-guard timer value on the far-end switch to avoid this problem. Valid entries Usage auto cont delay disc immed wink There are numerous valid entries for this field: use the online help in the switch administration software to view all the possible combinations. Here are what the elements used in those combinations mean: nauto — Used for immediate connection to a single preset destination (incoming CO trunks, for example). No digits are sent, because all calls terminate at the same place. ncont — Continuous signaling is used with Italian E&M tie trunks. The switch seizes a trunk by sending a continuous seizure signal for at least the duration specified by the Incoming Seizure Timer. Refer to ‘‘ Trunk Signaling Type’’ on page 986 for more information. ndelay — The sending switch does not send digits until it receives a delay dial signal (an off-hook signal followed by an on-hook signal) from the far-end switch, indicating that it’s ready to receive the digits. ndisc —Discontinuous signaling is used with Italian tie trunks that use E&M signaling. The switch can seize a trunk by sending a single, short signal for the duration specified by the Normal Outgoing Seize Send field. However, with the Three-Way Seizure option the calling switch can also send routing information to the called switch by sending one or a series of brief seizure signals. nwink — The sending switch does not send digits until it receives a a wink start (momentary off-hook) signal from the far-end switch, indicating that it’s ready to receive the digits. nimmed — The sending switch sends digits without waiting for a signal from the far-end switch. 2-wire-acThese entries are used with CO trunks in Russia: enter the type of connection to your central office. Check with you network service provider if you don’t know what type of connection they’re using. To use these entries, the Country field must be 15 and the CO trunks must use ports on a TN2199 circuit board. 2-wire-dc 3-wire