VoIP adopts the switch technology which is completely different compare with traditional telephone, the VoIP studied in this thesis is based on the H. 323 protocol.
IP电话采用了与传统电话截然不同的交换技术，本论文研究的IP电话是基于H。323协议的IP电话。
VoIP adopts the switch technology which is completely different compare with traditional telephone, the VoIP studied in this thesis is based on the H. 323 protocol.
IP电话采用了与传统电话截然不同的交换技术，本论文研究的IP电话是基于H。323协议的IP电话。
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