Enhanced language support for legacy call control system

• US 7,508,841 B2
• Filed: 05/12/2005
• Issued: 03/24/2009
• Est. Priority Date: 06/03/2004
• Status: Active Grant

• Current Assignee: Mitel Networks Corporation
• Original Assignee: Mitel Networks Corporation
• Inventors: Li, Guang, Erb, Paul
• Primary Examiner(s): Backer; Firmin
• Assistant Examiner(s): Juntima; Nittaya
• Application Number:
  US11/128,004
• Publication Number:
  US 20050271081A1
• Time in Patent Office: 1,412 Days
• Field of Search: 370/352, 370/465, 370/466, 704/277
• US Class Current: 370/466
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols

Abstract

This invention provides a method and apparatus for incorporation with a non-modifiable legacy IP telephony call control system. The system generally includes a legacy call control system for receiving incoming events and legacy strings and, in response, outputs resulting events and the legacy strings. An adapter generates the legacy strings and passes the incoming events and corresponding legacy strings to the legacy call control system.

Claims

1. A call control system for incorporation in an IP telephony switch, said system comprising:

a legacy call control system for receiving incoming events and legacy strings and, in response, outputting resulting events and said legacy strings; and

an adapter for, (i) receiving said incoming events and alternate strings, (ii) generating said legacy strings corresponding to said alternate strings, (iii) passing said incoming events and said corresponding legacy strings to said legacy call control system, (iv) receiving from said legacy call control system said resulting events and said corresponding legacy strings, (v) identifying said alternate strings using said received corresponding legacy strings and (vi) outputting said resulting events and said alternate strings.

2. The system of claim 1 wherein said adapter additionally stores pairs of said alternate strings and said corresponding legacy strings, for use in identifying said alternate strings.

3. The system of claim 2 wherein said adapter comprises a memory for storing said stored pairs.

4. The system of claim 1, wherein said adapter comprises:

an input adapter for (i) said receiving of said incoming events and alternate strings, (ii) said generating of said legacy strings, and (iii) said passing of said incoming events and said corresponding legacy strings to said legacy call control system; and

an output adapter for (iv) said receiving of said resulting events and said corresponding legacy strings, (v), said identifying of said alternate strings, and (vi), said outputting of said resulting events and said alternate strings.

5. The system of claim 3 wherein said IP telephony switch includes:

an IP telephony application,

a device control,

a switch management system,

and a trunk,

and wherein said adapter further comprises a plurality of clients for cooperating with said IP telephony application, said device control, said switch management system, and said trunk.

7. The system of claim 2, wherein said adapter comprises:

an input adapter for (i) said receiving of said incoming events and alternate strings, (ii) said generating of said legacy strips, and (iii) said passing of said incoming events and said corresponding legacy strings to said legacy call control system; and

an output adapter for (iv) said receiving of said resulting events and said corresponding legacy strings, (v), said identifying of said alternate strings, and (vi), said outputting of said resulting events and said alternate strings.

8. The system of claim 3, wherein said adapter comprises:

an input adapter for (i) said receiving of said incoming events and alternate strings, (ii) said generating of said legacy strips, and (iii) said passing of said incoming events and said corresponding legacy strings to said legacy call control system; and

an output adapter for (iv) said receiving of said resulting events and said corresponding legacy strings, (v), said identifying of said alternate strings, and (vi), said outputting of said resulting events and said alternate strings.

6. A method of adapting a legacy call control system for inputting incoming events and legacy strings and, in response, outputting resulting events and said legacy strings, said method comprising:

i) inputting said incoming events and alternate strings into an adapter,

ii) within said adapter generating said legacy strings, corresponding to said alternate strings,

iii) within said adapter passing said incoming events and said corresponding legacy strings from said adapter to said legacy call control system,

iv) within said adapter receiving, from said legacy call control system, said resulting events and said corresponding legacy strings,

v) within said adapter identifying said alternate strings using said corresponding legacy strings received in step iv), and

vi) within said adapter outputting said resulting events and said alternate strings.