Methods, apparatuses and computer program for IMS recovery upon restart of a S-CSCF
US8438257B2 · kind B2 · utility
7Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2007 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Mar 26, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/1016
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus facilitate recovery of an IMS in which an S-CSCF has suffered a restart (after a failure, software upgrade, or other reasons). One or more of first and second methods comprise submitting, from the S-CSCF towards a HSS, contact data required by the S-CSCF to contact a given subscriber, or to contact a proxy server through which the subscriber is accessible; storing the contact data at the HSS; and providing from the HSS towards an IMS entity, which may be previously assigned S-CSCF or a new S-CSCF, contact information elements selectable from the contact data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.