发明名称 |
Digital telephone data and control signal transmission system |
摘要 |
Techniques are disclosed for using Ethernet Layer 1 as a means for transporting audio, control, and status signals between telephones and an aggregator device in a telephone system. Techniques are also disclosed for using the aggregator to determine whether a telephone supports only Ethernet Layer 1, and for using the aggregator to communicate with the telephone using an appropriate protocol based on the results of the determination. |
申请公布号 |
US8422649(B2) |
申请公布日期 |
2013.04.16 |
申请号 |
US201113032798 |
申请日期 |
2011.02.23 |
申请人 |
CANNATA FRANK J.;DRYER PAUL;HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
CANNATA FRANK J.;DRYER PAUL |
分类号 |
H04M11/00 |
主分类号 |
H04M11/00 |
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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