Nortel BCM50 Configuration Manual page 85

• NSF Extension: None (DMS-100/250 switches); WATS (Siemens, ESWD, Lucent 5ESS
switches); ALL (GTD5 and DMS-10 switches).
• B-channel selection sequence: choose how B-channel resources are selected for call
processing.
• Clock Source: Determine how the module functions for timing on the network (Primary
External, Secondary External, Internal)
Warning: Changing the clock source may disconnect calls.
If you change the clock source for your system, you may cause your system DTM
interface(s) to reset, resulting in dropped calls. Choose a suitable time to change the clock
source and use the Page feature to inform users of possible service disruptions.
• Send Name Display: select check box to activate outgoing name display (OLI).
• Remote Capability MWI (SL-1): Select the check box only if connecting to a Meridian 1, or
other compatible endpoint, with the appropriate MWI package and RCAP set to MWI.
• Maximum transits (SL-1): Default: 31. Set the number of times a call will be transferred
within the private network before being dropped.
• CO fail: Use the carrier failure standard used by the service provider (TIA-5474A, TR62411)
• Interface levels: Choose the loss plan setting supported on the lines (ISDN, PSTN)
• Framing: Choose the framing format supported by the service provider (ESF, SF)
• DSX1 build (Internal CSU set to OFF): Set the distance between the system hardware and the
external channel service unit (000-100, 100-200, 200-300, 300-400, 400-500, 500-600, or
600-700 feet)
Configuring BRI Loop module parameters
• Clock Source: Determine how the module functions for timing on the network (Primary
External, Secondary External, Internal). When the BRI module is configured as a T-loop this
parameter is configured under Configuration > Telephony > Loops.
Warning: Changing the clock source may disconnect calls.
If you change the clock source for your system, you may cause your system BRI S/T
interface(s) to reset, resulting in dropped calls. Choose a suitable time to change the clock
source and use the Page feature to inform users of possible service disruptions.
• Send Name Display (BRI-QSIG): select check box to activate outgoing name display (OLI).
When the BRI module is configured as a T-loop this parameter is configured under
Configuration > Telephony > Loops.
Chapter 6 Module configuration: Trunk modules
Networking Configuration Guide
85