Trunk Models; Uk Trunk Models Summary - Nortel Meridian 1 Planning And Installation Manual

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Trunk models

UK trunk models summary

553-3021-209 Standard 1.00
Appendix D – Preprogrammed data for the United Kingdom
A trunk model is selected when a trunk is activated. Trunk characteristics,
such as signaling, dial tone, and dial pulse, are programmed into a trunk
model. Each defined trunk route has at least one default trunk model
associated with it.
The following table shows the trunk models that are available with the Option
11C Mini system. When a trunk model is selected, a number of values are
automatically default in LD 14.
UK trunk model summary
Mode Model
COT 1
2
3
DID 11
12
TIE 21
22
23
24
MUS 31
PAG 32
July 1999
Signaling Description
DTN Earth calling exchange line with
DTMF dialing
DIP Earth calling exchange line with
loop disconnect dialing
DTN Direct Inward System Access
(DISA)
DIP Direct Dialling In (DDI) with
loop disconnect dialing
DTN Direct Dialling In (DDI) with
DTMF dialing
DTN AC-15A TIE line with DTMF
dialing
DIP AC-15A TIE line with loop
disconnect dialing
E&M 4-Wire E&M TIE trunk
E&M 2-Wire E&M trunk
DIP Music Interface trunk
DIP Paging interface trunk