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NEAX2400 IPX ISDN Features and Specifications
Page 66
NDA-24311, Issue 1
I-26 Indialing Through Main - PRI
I-26 Indialing Through Main - PRI
General Description
With this feature, a call destined for a satellite PBX via DID or Network Inward Dialing (NID) will automatically
be routed to the satellite station by the main PBX over a tie trunk.
Operating Procedure
1. A four-digit number is received via DID or NID at a main PBX.
2. One or more sets of 1,000 digits or more are designated for each satellite location. A main PBX checks
the digits and routes the call over a tie trunk to the appropriate satellite.
3. The other three digits are then transmitted to the satellite, where the call is switched to the proper station.
4. When a satellite PBX is assigned more than 1,000 digits, each set of 1,000 digits refers to a separate trunk
group; while each trunk group is assigned to a separate incoming switch.
5. When a NEAX2400 IPX is used as a main PBX, the thousands of digits may be deleted or left intact when
the dialed digits are pulsed out to the satellite. All four digits can be transmitted to a satellite. A system
can also employ separate trunk groups for each 1,000 digits assigned to a satellite.
Service Conditions
None.
Satellite
Office
Main
Office
TRK
DID/NID Call