中型通讯视资料applied to SIP, H323, and other agreements soft phone, the single gateway, VoIP billing, to support the then separate billing.-zteapplied to SIP, H323, and other agreements soft phone, the single gateway, VoIP billing, to support the then sepa

一个H323协议，可以自由的拨打网络电话-1 H323 protocol, are free to make Internet phone calls

VOIP行业的H323协议终端软电话的源代码-VOIP industry H323 protocol source code for the terminal soft-phone