Chapter 20 BRI ISDN: BRI T-loops 197Networking Configuration GuideConfiguring BRI T-loop parametersTo configure BRI T-loop parameters1 Identify the loop as a T-loop (refer to “Configure loop type and general parameters” onpage 188).• Protocol (ETSI and ETSI-QSIG loops, only)• ONN block state• Overlap receiving• Overlap length• Send name display (ETSI-QSIG only)2 Enter the details for the loop (refer to “T-loop SPIDS and network DNs” on page 190).North American systems, only:• SPID• B-channel• Network DN• Call typeETSI and ETSI-QSIG T-loops (UK profile)• Clock source3 If applicable, configure D-packet service for the loop (refer to “T-loops D-packet service” onpage 192).4 Provision the loop and the loop lines (refer to “Provisioning module lines/loops” on page 112).5 Program the BRI lines (refer to “Configuring BRI lines” on page 197). If the lines are set toauto-answer, put the lines into line pools (A to O) and configure target lines.6 Assign the lines/line pools and target lines to the telephones. Refer to “Line Access - LineAssignment tab” and “Line Access - Line Pool Access tab” in the Device ConfigurationGuide (NN40020-300).Configuring BRI linesThere are two lines for every ISDN BRI loop that is designated as a T-loop. Unlike PRI lines,these lines can be set to either manual or automatic answer when using for remote call-ins.The following paths indicate where to access the line configuration menu through ElementManager and through Telset Administration:• Element Manager: Configuration > Telephony > Lines > Active Physical Lines, InactiveLines, All Lines• Telset interface: **CONFIG > Lines
