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US08525867B2 Chatting service method interworking video phone service 有权
聊天服务方式互通视频电话服务

Chatting service method interworking video phone service
摘要:
The present invention implements a chatting the chatting service interworking with a video phone service which can transmit and receive a text during a video phone conversation without terminating the video phone conversation, and furthermore, it improves service quality of a video phone by transmitting and receiving a text during a video phone conversation if a video phone conversation is made in poor an unsuitable environment.
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