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B1 service
B2 service
Data line class
Maximum B channels
Number of circuit switched voice (CSV) calls
Circuit switched voice bearer channels
Number of circuit switched data (CSD) calls
Circuit switched data bearer channels
Terminal type data bearer channels
Multipoint lines require the phone company to create a SPID for
each phone number on the line. With the exception of the ability
to spread two calls across two phone numbers, multipoint lines
offer no special features, and may create complications. How-
ever, if you use a multipoint line, the parameters are similar to the
point-to-point line, except for the SPIDs.
The 5ESS switch can provide a variety of supplementary features
which the ISU 2x64 may not support. Enabling these features
may have undesirable consequences. Avoid the following fea-
tures:
•
•
•
•
•
•
•
•
•
•
61200051L1-1D
Packet Mode Data
Multiline hunt groups
Electronic key telephone set (EKTS)
Shared directory numbers
Intercom groups
Network resource selector (modem pools)
Message waiting
Hunting
InterLATA competition
Accept special type of number
ISU 2x64 Dual Port ISDN Service Unit User Manual
Appendix F: Ordering ISDN Without IOCs
On-Demand (DMD)
On-Demand(DMD)
Table F-A
5ESS Features
Point-to-point
2
2
Any
2
Any
Type A
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