A 3G Video Phone Solution of Reducing the Call Drop

This paper analyzes the causes leading to call drop for 3G video phones. A solution for reducing the call drop is proposed. The solution proposed in this work mainly consists of software components, according to which hardware needs to be selected. It also gives the video phone terminal structure, block diagram for H.324M video phone terminal, the main software functional blocks and the algorithm flow chart of sending video data. The call drop rate is significantly reduced by adding user interface module, network status module, bit-error rate calculation module, coding quality control module. As well as by the use of software enabling video encoder to encode in different coding quality according to current network status and the level of error rate.