发明名称 |
Voice over IP portable transreceiver |
摘要 |
A portable transreceiver system transmitting voice communications over a data network is described. The system has a portable transreceiver (WT) mode where multiple users are connected using semi duplex communications, and a private mode in which pairs of users are connected using full duplex communications. Wireless voice enabled terminals are used by the users, and are interconnected via a network such as the Internet.
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申请公布号 |
US7023821(B2) |
申请公布日期 |
2006.04.04 |
申请号 |
US20030338938 |
申请日期 |
2003.01.08 |
申请人 |
SYMNBOL TECHNOLOGIES, INC. |
发明人 |
WOTHERSPOON KENT;CALLOW GERALD |
分类号 |
H04L12/28;H04L29/06;H04M1/253;H04M1/57;H04M1/725;H04W4/10;H04W80/00;H04W84/08;H04W84/12 |
主分类号 |
H04L12/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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