Nortel BCM 3.7, Manual

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560 Private networking with DPNSS
N0008589 3.3
Calls are dialed and identified to the system as follows:
• To reach a telephone inside the Private Network, at the Business Communications Manager
site, the user dials the DN of choice.
• To reach a telephone inside the Private Network, from another site, the user dials HLC + DN.
• To reach a telephone outside the Private Network, the user dials an Access Code + HLC + DN
Each node has its own destination (dest) codes which includes the appropriate access and HLC
codes to route the call appropriately.
The table below shows examples of the construction of numbers used when dialing within the
example network. Note that 6 is the Private Access code.
Table 128 Calling numbers required for DPNSS network example
Calling Site LOC/HLC
Calling Party
Number
Called Site Dialing String
Called Party
Number
Site A 244 244 1111 Site B 6 668 2222 668 2222
Site B 668 668 2222 Site D 6 848 2222 848 2222
Site D 848 2222 Site D 2229 2229
Site C 496 496 3333 Public DN 9 563 3245 563 3245