发明名称 |
Push-to-talk PSTN back-to-back user agent for connecting a PTT system to the PSTN/ISDN world |
摘要 |
A method for carrying out a Push-to-Talk communication in a digital and/or analog telephone network, including an interface for a semi-duplex communication between a Push-to-Talk server and the analog or digital telephone network and the analog or digital network. The interface uses a communication node or group system as computer and carries out a communication in a transmission channel with automatic directional switching in an analog or digital telephone network in the direction of an available Push-to-Talk server, the analog or digital telephone network being designed as an audio and control interface in the direction of the operating means.
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申请公布号 |
US8588760(B2) |
申请公布日期 |
2013.11.19 |
申请号 |
US20070307762 |
申请日期 |
2007.06.26 |
申请人 |
ESSELING NORBERT;T-MOBILE INTERNATIONAL AG |
发明人 |
ESSELING NORBERT |
分类号 |
H04W4/00;H04B7/00;H04L12/16;H04M3/42;H04Q11/00;H04W4/10;H04W4/20;H04W88/16 |
主分类号 |
H04W4/00 |
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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