Method and system for preventing call forward looping
US7142657B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Sep 16, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2207/12
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a telecommunications network having switching points (such as SSPs and/or MSCs) controlled by a control point (such as an SCP), the switching points are provisioned to send messages to the control point when they encounter trigger conditions during processing of a call to a called station that has a forward-to number. When the control point receives the messages, it determines whether a loop condition exists, i.e., whether the call has already been forwarded from the forward-to number. If the control point determines that a loop condition exists, the control point instructs the switching point so as not to forward the call to the forward-to number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.