Specifications

Dispatch Call Types
Dispatch Call Processing
4-8 68P81095E55-E August 08, 2000
During the conversation, a hang time is provided so that the two parties may
exchange transmissions. After each transmission, the Fixed Network Equipment
(FNE) maintains the call for the hang time to allow either user time to respond. If at
any time during the process, the called or caller MS does not respond in a
programmable timeframe, the FNE disconnects all the channels and tears down the
call. The call hang timer is reset by each new transmission.
Figure 4-5 Private Call Functionality
Examples of private Call Scenarios are shown in Table 4-1
Table 4-1Private Call Scenario
Called MS Caller MS FNEMESSAGE
PC REQUEST
PC PROCEEDING INITIATOR
PC PAGING REQUEST
PC PAGING RESPONSE
PC GRANT INITIATOR
PC GRANT TARGET
1. A Private Call (PC) is set up automatically. No other users hears the communication.
When a PC is initiated, after the PC proceeding message, a PC Page message is sent.
2. Only the cell returning a PC Page Response to the DAP is included in the PC. If no
resources are available, the PC MS will be put into a queue. The DAP PC queue timer is
adjustable. If no resources are available after the queue timer expires, the MS will
receive an indication that the PC setup is being torn down.
Event/State Notification
Called MS idle If MS and resources available - Successful Call
Called MS on an Interconnect Call Caller receives 1 sec Busy Tone / Low and MS
displays
TARGET NOT AVAILABLE along with
1 sec high tone
Called MS on a dispatch Group Call Caller receives 1 sec Busy Tone / Low and MS
displays
TARGET NOT AVAILABLE along with
1 sec high tone
Called MS on a dispatch Private Call Caller MS displays
TARGET BUSY IN
PRIVATE
along with 1 sec high tone
Called MS is powered down Caller receives Busy Tone / High and the MS
displays
TARGET NOT AVAILABLE
MS initiates a Private Call to itself Caller receives 1 sec Busy Tone/High and the
MS displays
TARGET BUSY IN PRIVATE
MS attempts invalid Call Alert (private
call)
Caller MS displays SERVICE RESTRICTED
along with a short tone
MS calls an MS without Private Calling Caller MS displays
TARGET NOT AUTHORIZED
along with a short tone
MS calls an invalid MS Caller MS displays
INVALID ENTRY along with
a short high tone
MS initiates a Private Call in other than
the home market
Caller MS displays
SERVICE NOT AVAILABLE
along with a short high tone