Methods for emergency response location (ERL) provision in a voice over internet protocol (VoIP) 911 server for non-direct inward dialing (DID) callers and related systems and computer program products
US12238245B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2023 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Oct 31, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/64
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods for providing a call-back number for emergency calls initiated from a non-DID device are provided. The methods include receiving a call from a public safety answering point (PSAP) at an application programming interface (API) associated with a carrier, wherein a PSAP operator calls a proxy call-back number on a PSAP screen that has been previously assigned to a non-DID device; requesting instructions at the API from a control function based on the proxy call-back number dialed by the PSAP operator; receiving information at the API related to the non-DID device from the control function based on pre-provisioned data associated with the proxy call-back number; and routing the call from the PSAP to the non-DID device through a voice over internet protocol (VOIP) switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.