Combined H.450.2 and SIP call transfer
US7738445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2005 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Jan 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/58
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for supporting advanced features in a core SIP network when the calling party is in a network operating with the H.323 protocol is disclosed. Specifically, after processing the calls by collecting information associated with the advanced features, a REFER message is sent by an application server to an ingress border element associated with the calling party. The ingress border element then sends an H.450.2 FACILITY message containing the information in the SIP REFER message to an application gateway associated with the calling party. Upon receiving a SETUP message from the application gateway, the ingress border element then translates that SETUP message into a SIP INVITE message to establish the call.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.