Appendix F: Ordering ISDN Without IOCs132 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1DDMS-100 Protocol Version 1 Line Additional ParametersThe Northern Telecom DMS-100 telephone switch supports aproprietary ISDN D-channel call control protocol called Pvc1which is based on CCITT recommendations. The ISU 2x64 con-figured for switch-type DMS-100 is functional on lines providingthis protocol on DMS-100 switches with software version BCS-32or later. The ISU 2x64 supports the following configurations onDMS-100 lines:• Multipoint with one phone number (1B+D service)• Multipoint with two phone numbers (for 2B+D service)The requirements for the DMS-100 multipoint line are defined inthe sections Local Interface, Local Service, and in Table F-B, all inthis appendix. The line should have two service profiles with thefollowing parameters to support BONDING.Table F-BDMS FeaturesLine type Basic Rate, FunctionalElectronic key telephone set (EKTS) NoCall appearance handling (CACH) NoInitializing terminal YesBearer service Circuit Switched Voice and Data permitted.Packet mode data not permitted.Circuit switched service YesPacket switched service NoProtocol Version Functional PVC 1TEI Dynamic
