Analog caller identification transmission method and apparatus
US6292549A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1999 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Feb 23, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2242/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for routing analog Caller ID signals includes receiving an incoming telephone call for a first telephone extension, the incoming telephone call associated with a first set of analog Caller ID signals, asserting a ringing signal to the first telephone extension, the ringing signal including the first set of analog Caller ID signals, coupling the incoming call to the first telephone extension, receiving a request to couple the incoming call from the first telephone extension to a second telephone extension, receiving a request to send the first set of analog Caller ID signals to the second telephone extension, and asserting a ringing signal to the second telephone extension, the ringing signal including the first set of analog Caller ID signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.