METHOD AND SYSTEM FOR TERMINAL PTT REGISTRATION BASED ON CDMA TRUNKING SYSTEM

摘要

The present invention provides a method of terminal PTT registration based on CDMA trunking system and the system thereof, comprising: a user terminal is powered and a normal CDMA registration flow is completed, and afterwards the value of a PTT registration message counter is initialized; the user terminal sends a PTT registration message to a dispatching sub-system (server) and starts a PTT registration timer; and a corresponding process is performed according to the response message from the dispatching server, which is the reception of the trunking registration or the rejection of the trunking registration. Therefore the terminal with CDMA trunking function can avoid the problem caused by a failed PTT registration.