Method for synchronizing of test call in cdma cellular system

PURPOSE: A method for securing the synchronization of a test call for a CDMA(Code Division Multiple Access) cellular system is provided to secure the synchronization between an MS(Mobile Station) and a BTS(Base Transceiver Station) without using a GPS(Global Positioning System) time. CONSTITUTION: In case that a test call is requested from a TSB(Transceiver and Selector Bank), an MS and a BTS set the test call(300). The transmission index value is increased(310). If a signal to the test call is received from the BTS, the MS measures a quality of the test call using a received frame and transmits a forward initial traffic to the BTS(320). If a frame received from the MS is abnormal, the BTS increases only index value of the received frame(330). If an excellent frame is received, the BTS converts the received index value into a transmission index value inserted into the received excellent frame(340).