The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 2004
Filed:
Nov. 09, 1999
Michel Kallas, Allen, TX (US);
James Michael Lyell, Garland, TX (US);
Gibson D. Ritenour, Plano, TX (US);
Nortel Networks Corporation, Montreal, CA;
Abstract
A communication system includes packet-based networks that are coupled to terminals capable of participating in telephony sessions. To implement telephony services in such sessions, a telephony scripting language (TSL) is defined. Script modules may be created using TSL. Each script module may include a state machine having a plurality of states. TSL defines triggers that cause the state machine in an executed script module to transition between the states. In addition, TSL also defines actions that are specified in the several states or in transitions between states. The actions represent telephony services that may be performed by nodes coupled to the networks. Each action may be converted to one or more calls to functions or routines provided by application programming interfaces (APIs) residing in the network nodes.