Community dialing circuit apparatus for pots phone and IP phone
US7062035B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2003 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Jan 20, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/2535
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A community dialing circuit apparatus for IP phone and POTS phone is provided. The apparatus includes an IP phone system, a POTS phone system, an insulation system connected between the IP phone system and the POTS system, and a keypad connected to the IP phone system and the POTS system for inputting the phone number. When the city power is on and a phone number having a format of the IP phone number is inputted, the POTS phone is disabled and the IP phone is activated. When the city power is on and a phone number having a first format of the POTS phone number is inputted, the POTS phone is activated and the IP phone is disabled. When the city power is off and a phone number having a second format of the POTS phone number is inputted, the IP phone is turned off and the POTS phone is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.