Voice/data transfer method and apparatus utilizing an alternate line
US5588045A · kind A · utility
10Cited by
10References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 3, 1995 |
| Grant date | Dec 24, 1996 |
| Priority date | — |
| Expiry date | Feb 3, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/533
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The reliability of call transfer in a PBX can be improved by verifying the availability of a destination port before a transfer is attempted. The incoming call is routed to an alternate line after the interrogation occurs. Once the availability of the desired facility is confirmed, the call can be picked up by the destination port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.