Fast reconnect

During the duration of a dispatch call, the mobile
continues to monitor the SQE and signal strength of the serving and
neighbor cells. Under certain conditions, the mobile may decide to
change its serving cell.
When the mobile is on the traffic channel (during the talk phase of a
call), the mobile initiates a reconnect if the serving cell’s outbound SQE
is less than desired or upon the failure or disconnect of the serving cell.