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144 MultiModemISI Hybrid Series, ISIHI-2S
Appendix
The 5ESS switch provides supplementary features that the ISDN TA may not support.
Enabling these features may have undesirable consequences. Features to avoid are:
• Packet mode data
• Multiline Hunt Groups
• EKTS (Electronic Key Telephone Set)
• Shared directory numbers
• Intercom groups
• Modem Pools (Network resource selector)
• Message waiting
• Hunting
• Inter LATA competition
• Accept special type of number
If POTS interface is installed, the ISDN TA supports these supplementary features:
• Two call appearances
• Three- and six-way conferencing
• Call transfer
Only the second SPID uses these features, since the first SPID is the data-only port.
DMS-100 Pvc1 Line Additional Parameters
The Northern Telecom DMS-100 telephone switch supports a proprietary ISDN D-
channel call control protocol called Protocol Version 1 (
Pvc1
) that is based on CCITT
recommendations. The ISDN TA configured for switch type DMS-100 works with lines
providing this protocol on DMS-100 switches with software version BCS-32 or later.
The ISDN TA supports the following configurations on DMS-100 Custom lines:
• Multipoint with one phone number (for 1B+D service)
• Multipoint with two phone numbers (for 2B+D service)
Requirements for the DMS-100 multipoint line are defined in Local Interface
Requirements, Local Service Requirements, and below. Fax this information to your
local phone company. The line should have two service profiles with the parameters
below to support BONDING and the POTS port, if installed.
Line Type: Basic rate, functional
EKTS: No
CACH: No
Initializing terminal: Yes
Bearer services: Circuit-switched voice & data permitted (Packet mode data not
permitted)
Circuit-switched service: Yes
Packet-switched service: No
Protocol version: Functional Pvc1
TEI: Dynamic