Specifications

Interconnect Call Processing
August 08, 2000 68P81095E55-E 5-1
Chapter 5
Interconnect Call Processing
Interconnect calls are voice communications that utilized other provider networks.
The other networks may be either land-based or wireless. To use interconnect
calling, the iDEN system must be configured for interface to the telephony network.
This chapter will describes the fundamentals of the Interconnect Call Processing
Interconnect Calling
To support the logical Global and other provider calling, Interconnect
communications organizes the coordinated systems into different levels. These areas
are based on geography. The areas are:
• Global — another provider land-line or wireless system
• Location Area — the set of EBTSs in contact with the mobile
• Cell — the cell of the EBTS hosting the call
Interconnect calls locate the MS to the cell by the Base Radio handling the radio link
and control channels. The location area is a logical group of EBTSs maintained as a
Interconnect Location Identifier (ILA) in the VLR to track the MS.
Functions
Interconnect Only Service
Because Interconnect calls exist outside of the iDEN system, this type of service my
be restricted on a per-MS basis. These types of operation are controlled by service
provisioning.