System for connecting calls on physically distinct servers on an advanced intelligent network
US6498845B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1999 |
| Grant date | Dec 24, 2002 |
| Priority date | — |
| Expiry date | Mar 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13566
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A bridge connection is made between the interfaces on physically distinct telecommunication servers such that the two ends of the bridge can be used to connect existing calls that are terminated on each of the servers. To provide the bridge connection, a call using a standard outgoing PRI trunk on one of the servers is made through the public switched telephone network (PSTN) to an incoming PRI trunk on the other server. When a bridge connection is required one of the servers is queried for its directory number, which is any number that the PSTN has assigned to equipment in that server. The other server is then instructed to make a call to that number. When the called server recognizes the incoming call as bridge connection, its answers the call. The calling server then associates the bridge connection with the pending action, using information encoded in the out-of-band signal with which the call between the servers was established. In this manner, calls terminating on distinct servers can be connected without the need for additional hardware.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.