Contents 9
Nortel Business Communications Manager 5.0
Planning and Engineering
NN40170-200 01.03 Standard
August 2009
Copyright © 2009 Nortel Networks
ISDN planning and engineering 279
ISDN standards compatibility 279
ISDN network planning 279
Ordering ISDN PRI 279
Ordering ISDN BRI 280
Supported ISDN protocols 281
Setting up a dialing plan 283
Planning the use of destination codes 283
Private network—PRI and VoIP tandem network specifications
285
Example private tandem network of BCMs 285
Destination codes, external terminating calls 285
Dialing plan and routing specifications 287
Destination code leading digits 287
Meridian 1 access versus BCM access codes 287
Routing service record, public line pool 288
Routing service record, destination code 288
Tandem call progression 289
Dialing plan—routing and destination codes specifications 291
Destination codes schedules 291
Second dial tone values and descriptions 292
Private network—DPNSS network services (UK) specifications
293
Example of Private network with DPNSS 293
Calling number values for network example 294
Routing description for network example 294
Guidelines for private DPNSS network dialing plan 295
VoIP trunk gateway specifications 297
T.38 fax protocol restrictions and requirements 297
Example of call flow, PSTN into remote node 297
Detail of call progress for example 298
Example of a fallback network 299
Gatekeeper call scenarios 300
Detail of call progression for example 301
SIP fax over G.711 specifications 303
G.711 Fax restrictions 303
Operational notes and restrictions 304
T.38 fax specifications 305
Example of private network configured for T.38 fax 305
Programmed Media gateway values for example 305