发明名称 |
Pre-connection telephony data signal exchanges |
摘要 |
A method for conveying digital information can include initiating a telephone connection to a receiving device. Prior to establishing a voice channel connection with the receiving device, supplemental data can be digitally encoded into a CNG transmission. The CNG transmission can be conveyed via a CNG channel, wherein the CNG channel is capable of transporting a facsimile calling tone signal.
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申请公布号 |
US7209264(B2) |
申请公布日期 |
2007.04.24 |
申请号 |
US20020325121 |
申请日期 |
2002.12.20 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CREAMER THOMAS E.;JAISWAL PEEYUSH;KATZ NEIL A.;MOORE VICTOR S. |
分类号 |
H04N1/00;H04M11/00;H04N1/327 |
主分类号 |
H04N1/00 |
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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