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Not applicable to SBC SWe Edge.

ISDN is supported on the 

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DS1 interface. Each DS1 interface can be configured for T1 or E1. The 
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supports both "ISDN to ISDN" and "ISDN to/from SIP" calls.

The 

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supports ISDN PRI trunks with the following ISDN variants:


Specifications Supported

ISDN PRI Trunk/VariantBased on Specification
Q.SIGECMA-143 4th Edition December 2001
EuroISDNETS 300 102-1 December 1990
Nortel DMS-100

Northern Telecom Primary Specification BCS 36 ISDN Primary Rate User-Network Interface

NIS A211-1 Release 6, March 4, 1994

National ISDN Number 2 (NI-2)SR-4994 Issue 1 December 1999
AT&T 4ESS-
AT&T 5ESSTR41459 June 1999
NTT INS NET 1500-


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