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Lucent Technologies Intuity CONVERSANT System Version 7.0 Guide
Lucent Technologies Intuity CONVERSANT System Version 7.0 Guide
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5 Switch Interface Administration Digital Interfaces Intuity™ CONVERSANT® System Version 7.0 Administration 585-313-501 Issue 3 January 2000 317 Assign an ISDN-PRI Layer 1 to Digital Circuit Cards Note:Before a new protocol can be assigned to a circuit card, any existing protocol must first be unassigned. See Unassign T1 A/B Robbed-bit E&M to Digital Circuit Cards on page 314 for more information. Before attempting to make any assignment changes to circuit cards, they must be in the MANOOS state. See Equipment State on page 150 in Chapter 3, Voice System Administration , for additional information. If you change digital protocol assignments on the voice system, you must make the change on the switch as well. Use the following procedure to assign the ISDN-PRI Layer 1 to a digital circuit card: 1 Start at the ISDN-PRI Layer 1 menu (Figure 156 on page 316 ) and select The system displays the Assign Card: ISDN-PRI Layer 1 window (Figure 157 on page 318 ). > Assign Card
5 Switch Interface Administration Digital Interfaces Intuity™ CONVERSANT® System Version 7.0 Administration 585-313-501 Issue 3 January 2000 318 Figure 157. Assign Card: ISDN-PRI Layer 1 Window 2 Enter the circuit card number in the Card Number: field, or press F2 (Choices) to select from a menu. Initially, all fields are populated with the default values for the circuit card number entered. The Card Number: field is blank in Figure 157 on page 318 .
5 Switch Interface Administration Digital Interfaces Intuity™ CONVERSANT® System Version 7.0 Administration 585-313-501 Issue 3 January 2000 319 The list below shows the LSE1-specific fields:~ Idle Code ~ A-LAW or MU-LAW ~ CRC The list below shows the LST1-specific fields: ~ CSU Distance 3 Enter the framing/line coding in the Framing/Line Coding: field, or press F2 (Choices) to select from a menu. ~ The valid values for T1 PRI are D4ZCS or ESFB8ZS. ESFB8ZS is the default. ~ The only valid choice for E1 PRI is CEPTHDB3. 4 Enter Yes to enable or No to disable in the DTMF Muting: field, or press F2 (Choices) to select from a menu. Yes is the default. Enter Yes to use dual-tone multifrequency (DTMF) muting to reduce false DTMF recognitions that sometimes result from the network echoing back sounds that the voice system falsely recognizes as touch tones. Enter No when the interface is used for bridging; DTMF needs to pass through without muting.
5 Switch Interface Administration Digital Interfaces Intuity™ CONVERSANT® System Version 7.0 Administration 585-313-501 Issue 3 January 2000 320 5 Enter Yes or No to specify whether or not the circuit card carries the D- channel in the D-channel on this Card?: field, or press F2 (Choices) to select from a menu. Up to thirteen PRI T1 circuit cards can have a D-channel. The voice system supports up to thirteen 23B+D interfaces (each with its own D- channel and each set to Yes in this field) or up to 311 B+D (where one card has the D-channel and the other twelve cards are controlled by that D-channel and are set to No in this field since they do not have a D- channel). The system also supports configurations with two to twelve D- channels. Typically, each E1 PRI interface has its own D-channel and the system supports up to three 30B+D interfaces. 6 Enter the volume adjustment for all incoming speech on circuit cards in the Incoming Speech Volume: field. Valid values are 0–32000. Values less than 100 or greater than 8000 may distort the incoming speech. The default is 1414. Any adjustment occurs before the system processes the incoming speech for coding it later for playback. The value in the Incoming Speech Volume: field represents a gain applied to the speech input using a logarithmic scale. A value of 1000 equals no gain; that is, the input is coded at the same level as it is received. Multiplying by 1.414 (the square root of two) approximately doubles the input volume, or increases it by 3 dB. Therefore, a value of 1414 in the field doubles the volume of incoming speech before it is coded, 2000 doubles it a second time, 2828 doubles it a third time, etc.
5 Switch Interface Administration Digital Interfaces Intuity™ CONVERSANT® System Version 7.0 Administration 585-313-501 Issue 3 January 2000 321 To decrease the incoming speech volume, multiply by 0.707 to approximately half the value or decrease it by 3 dB. Therefore, a value of 707 in the field reduces the volume by half, 500 by half a second time, etc. See Table 33 on page 338 for the relationship between the volume number and the actual change in volume expressed in decibels. Note:The incoming speech volume value is set on a per card basis for digital circuit cards, versus on a system wide basis for analog circuit cards. 7 Enter the volume adjustment for all outgoing speech played on the circuit card in the Outgoing Speech Volume: field. Valid values range from 0–32000. The default is 707. The value in this field and its effect are the same as for Incoming Speech Volume: field. Any adjustment is applied to recorded speech as it is processed for playback. ! CAUTION: The Idle Code: , A-LAW or MU-LAW:, and CRC: field parameters must match the settings on the DEFINITY switch to avoid service complications.8 (E1 only) Enter the 8-digit code that are generated when the channel is idle in the Idle Code: field. 9 (E1 only) Enter A-LAW or MU-LAW in the A-LAW or MU-LAW: field.
5 Switch Interface Administration Digital Interfaces Intuity™ CONVERSANT® System Version 7.0 Administration 585-313-501 Issue 3 January 2000 322 10 Enter the cable distance, in feet, between the Channel Service Unit (CSU) and the voice system in the CSU Distance: field, or press F2 (Choices) to select from a menu. Valid values are 0–133, 134–266, 267–399, 400–533, and 534–666. The default is 0–133 feet. If there is no CSU, the value entered in this field should be the cable distance between the voice system and the equipment to which it is connected. 11 (E1 only) Enter Yes to enable the cyclical redundancy check error checking or No to disable the error checking in the CRC: field. 12 (Optional) Enter the outgoing volume of speech in the Outgoing Text Volume: field. Valid values are 0–32000 (-30 to +30 dB). The default value is 1000. Note:The optional Text-to-Speech feature package must be installed on your system for this field to be visible. 13 Press F3 (Save). The system saves the parameter information and assigns the ISDN-PRI Layer 1 protocol to the selected E1/T1 circuit card.
5 Switch Interface Administration Digital Interfaces Intuity™ CONVERSANT® System Version 7.0 Administration 585-313-501 Issue 3 January 2000 323 PRI Layer 2 and Layer 3 Parameters Your PRI service provider may need to know some Layer 2 and Layer 3 parameters used by the voice system. Table 31 on page 323 and Table 32 on page 324 provide a list of the most commonly requested parameters. Incoming calls to the voice system should be provisioned so that the channel number is exclusive and not preferred. If the switch is configured to deliver ANI on a subscription basis, it is not possible for the voice system to request a different type of ANI on a call-by- call basis. While it is not recommended to change timer values from their defaults, the /vs/man/cat4/pri.rc.4 manual page describes how PRI timer values and a few other parameters can be changed if that becomes necessary. Table 31. PRI Layer 2 Parameters Layer 2 Parameter Value Retry Count N200 3 Timer T200 1 sec. Timer T203 30 sec. HDLC (D4ZCS) Inverted HDLC (ESFB8ZS) Noninverted
5 Switch Interface Administration Digital Interfaces Intuity™ CONVERSANT® System Version 7.0 Administration 585-313-501 Issue 3 January 2000 324 Table 32. PRI Layer 3 Parameters Layer 3 Parameter Value in Seconds Timer T302 15 Timer T303 4 Timer T305 4 Timer T308 4 Timer T310 10 Timer T313 4 Timer T316 120 Timer T3M1 120 Timer T309 30 Interface ID (with D-channel)1 Interface ID (without D-channel2-5 Bearer Capability 64 Kbit voice
5 Switch Interface Administration Digital Interfaces Intuity™ CONVERSANT® System Version 7.0 Administration 585-313-501 Issue 3 January 2000 325 Change ISDN-PRI Layer 1 Card Parameters The circuit card must first be assigned to the ISDN-PRI Layer 1 protocol to use this procedure. See Assign an ISDN-PRI Layer 1 to Digital Circuit Cards on page 317 for more information about making the initial assignment. Note:Before attempting to make any assignment changes to circuit cards, they must be in the MANOOS state. See Equipment State on page 150 in Chapter 3, Voice System Administration , for additional information. If you change digital protocol assignments on the voice system, you must make the change on the switch as well. Use the following procedure to change the ISDN-PRI Layer 1 parameters: 1 Start at the ISDN-PRI Layer 1 menu (Figure 156 on page 316 ) and select The system displays the Change Parameters: ISDN-PRI Layer 1 window (Figure 158 on page 326 ). > Change Parameters
5 Switch Interface Administration Digital Interfaces Intuity™ CONVERSANT® System Version 7.0 Administration 585-313-501 Issue 3 January 2000 326 Figure 158. Change Parameters: ISDN-PRI Layer 1 Window 2 Enter the circuit card number in the Card Number: field, or press F2 (Choices) to select from a menu. Initially, all fields are populated with the default values for the circuit card number entered. The Card Number: field is blank in Figure 158 on page 326 . After you enter the circuit card number, certain fields disappear depending on the configuration of the selected circuit card.