1
Steven R Donovan: Method for providing IP telephony with QoS using end-to-end RSVP signaling. MCI WorldCom, April 2, 2002: US06366577 (277 worldwide citation)

The present invention discloses a method whereby the separate protocols: session initiation protocol SIP, resource reservation protocol RSVP, common open policy service COPS, and open settlement protocol OSP are used together to setup, maintain, and teardown Internet communications having an accepta ...


2
Steven R Donovan, John K Gallant, Shou Gung, Anthony K Wong: System using portion of a short message payload to identify short message service types and delivering the message if user subscribes to the services. MCI Communications Corporation, May 11, 1999: US05903726 (153 worldwide citation)

A system and method for providing enhanced short-message service options in PCS systems. The generic short-message service is split into unbundled short-message service applications (e.g., emergency messaging, voice mail alert, teleadmin, etc.). Each of these unbundled short-message services are rec ...


3
Steven R Donovan: Internet protocol telephony voice/video message deposit and retrieval. MCI WorldCom, August 13, 2002: US06434143 (120 worldwide citation)

A method for signaling an Integrated Messaging System (IMS) on an Internet Protocol (IP) based network to deposit a message, including the steps of sending a Session Initiation Protocol (SIP) SIP INVITE request to the IMS indicating a message deposit action; receiving a corresponding SIP message fro ...


4
Steven R Donovan, Matthew J Cannon: Method of and system for extending internet telephony over virtual private network direct access lines. MCI WorldCom, September 17, 2002: US06453034 (112 worldwide citation)

A virtual private network includes an internet protocol (IP) network and a public switched telephone network (PSTN). An enterprise gateway is operably connected to the IP network. The enterprise gateway is operably connected to a switch of the PSTN through a direct access line (DAL). The set-up sign ...


5
Steven R Donovan, Raghavan Devanathan: SIP-based feature control. WorldCom, September 2, 2003: US06615236 (98 worldwide citation)

A system and method for providing an addition to the Session Initiation Protocol is disclosed. The addition is a new field header, preferably entitled “Feature”, that is added to the REGISTER message. This field would contain control information for various feature services, like the Do Not Disturb ...


6
John K Gallant, Steven R Donovan: Multi-site data communications network database partitioned by network elements. MCI Communications, June 2, 1998: US05761500 (79 worldwide citation)

A system and method for improving database system reliability and availability and ensuring database consistency in multiple network database system sites, for example, home location register (HLR) sites of a wireless telecommunications network. There are a plurality of database system sites, each o ...


7
John K Gallant, Steven R Donovan: Method and system for enhanced call completion in telecommunications mobility applications. MCI Communications Corporation, December 31, 1996: US05590175 (59 worldwide citation)

A call directed to a mobile telephone station from a public switch telephone network is received in a mobile services switching center of a mobile telephone network. An attempt is made to locate the profile of the mobile telephone station in a visitor location register. If the mobile telephone profi ...


8
Steven R Donovan: Methods for providing prepaid telephony service via an internet protocol network system. WorldCom, November 12, 2002: US06480588 (56 worldwide citation)

Methods are disclosed for providing prepaid telephony service via an Internet protocol (IP) network system. A first method provides controlling at least one media agent or call routing station/switch of an IP network system for allowing and/or blocking call media streams from traversing through the ...


9
John Gallant, Steven R Donovan, Anousheh Raissyan, Jeremy Chiou: Method and apparatus for improved call connectivity in an intelligent wireless network. MCI Commnications Corporation, September 29, 1998: US05815810 (50 worldwide citation)

The method and apparatus for completing calls to mobile stations in a mobile radio communications network provides efficient routing of calls, reduced utilization of system resources, and consistent services to a mobile station wherever located. The invention includes a national home location regist ...


10
Steven R Donovan, Matthew Cannon, John Hearty: Method and system for releasing a voice response unit from a protocol session. MCI WorldCom, January 28, 2003: US06512818 (50 worldwide citation)

An approach for processing voice calls over a packet switched network as to efficiently utilize the functionalities of a Voice Response Unit (VRU). According to one embodiment, a call originator, acting as a User Agent Client in accordance with the Session Initiation Protocol (SIP), issues messages ...