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:
Apr. 11, 2006
Filed:
Jan. 04, 2002
Adam Roach, Dallas, TX (US);
Mattias Hartikainen, Dallas, TX (US);
Sean Olson, Richardson, TX (US);
Shyamal Prasad, Dallas, TX (US);
Adam Roach, Dallas, TX (US);
Mattias Hartikainen, Dallas, TX (US);
Sean Olson, Richardson, TX (US);
Shyamal Prasad, Dallas, TX (US);
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
An architecture for a communications node and a method of implementing control functions in a Session Initiation Protocol (SIP) telecommunications network. The node performs a plurality of call-control functions in a single physical node. A plurality of application-level logic blocks corresponding to the plurality of call-control functions are interfaced with a common engine module which is implemented on top of a common operating system and physical platform. The engine module includes SIP behavior functions and SIP stack functions, selected ones of which are operable to perform different call-control functions when interfaced with different application-level logic blocks. Mapping tables within the engine module identify groups of functions that, together with selected logic blocks, perform defined call-control functions. The open architecture allows additional functional logic blocks to be interfaced with the engine module to implement additional call-control functions.