Method of and system for providing intelligent network control services in IP telephony

A system comprising:

• an H.323 device to:
• receive an H.323 call establishment request, the H.323 call establishment request being associated with an intelligent network service,
• send a first Session Initiation Protocol (SIP) invite request in response to receiving the H.323 call establishment request that is associated with an intelligent network service;
• and
• a location manager to:
• receive the first SIP invite request from the H.323 device,
• obtain, in response to receiving the first SIP invite request, an address for a called party at an egress Internet Protocol (IP) telephony device, and
• send the obtained address to the H.323 device,
• the H.323 device establishing a telephone call using the obtained address.

A method comprising:

• receiving, via a first device, an H.323 call establishment request;
• determining, via the first device, whether the H.323 call establishment request is associated with an intelligent network service;
• sending, via the first device, a first Session Initiation Protocol (SIP) invite request to a second device in response to determining that the H.323 call establishment request is associated with the intelligent network service;
• obtaining, via the second device, an address for a called party in response to receiving the first SIP invite request;
• sending, via the second device, the obtained address to the first device;
• and
• establishing, via the first device, a telephone call using the obtained address.