AT&T DS1/DMi/ISDN-PRI manual Procedure 000 Word 3 Generic 2 Only, Voice

C. ADMINISTRATION PROCEDURE SUMMARY

This appendix examines administrative procedures in DEFINITY® Generic 2 that relate to ISDN- PRI. It describes how pertinent administrative fields relate to ISDN-PRI level-3 message contents and general feature operation.

This appendix is organized in ascending administrative-procedure number. Differentiations are made between System 85 R2V4 and Generic 2 where appropriate.

PROCEDURE 000 WORD 3 (Generic 2 Only)

Field 1 of this word assigns the bearer capability (BC) class of service (COS) number for the extension number. One implication of this COS is the pattern or preference selected for this extension on outgoing calls (see the Procedure 309 Word 5 and Procedure 321 Word 5 sections later in this appendix).

The 10 BCs are defined in field 16 of procedure 014, word 1. This definition codes the BC information element (IE) in the setup message when the extension (entered in field 1 of procedure 000, word 3) accesses an ISDN-PRI trunk for an outgoing call.

The following defines the encoding of the BC IE for the 10 possible BCs.

Voice	Opcode: 4 (assuming no codeset mapping)
	Information transfer capability: speech
	Coding standard: CCITT
	Information transfer rate: 64K-bps
	Transfer mode: circuit mode
	Layer and protocol identification: CCITT Mu-law speech (layer 1)

Mode 1

Mode 2

Opcode: 4 (assuming no codeset mapping)

Information transfer capability: restricted digital information

Coding standard: CCITT

Information transfer rate: 64K-bps

Transfer mode: circuit mode

Layer and protocol identification: rate adaption as specified in 1.461 (layer 1)

User rate: 56K-bps

Synch/asynch: synch

Opcode: 4 (assuming no codeset mapping)

Information transfer capability: restricted digital information

Coding standard: CCITT

Information transfer rate: 64K-bps

Transfer mode: circuit mode

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