Modifying call system identifiers to indicate keys associated with user information

1. A call processing system comprising:

an interface configured to receive call signaling for a call from a call system and receive user information during the call from a user using the call system wherein the call signaling includes an identifier for the call system; and

a processing system configured to generate a sequence number for the call within a sequence of multiple calls, modify the identifier to generate a modified identifier indicating the sequence number, transfer the sequence number and the user information to a database system, and transfer new call signaling for the call to a destination wherein the new call signaling indicates the modified identifier.

2. The call processing system of claim 1 wherein the call signaling comprises automatic number identification (ANI) information and wherein the ANI information includes the identifier and wherein the processing system is configured to modify the ANI information to generate the modified identifier.

3. The call processing system of claim 2 wherein the identifier comprises a phone number for the call system and wherein the modified identifier comprises a modified phone number.

4. The call processing system of claim 3 wherein the processing system is configured to modify a portion of the phone number to generate the modified phone number having a modified portion.

5. The call processing system of claim 4 wherein the new call signaling comprises new automatic number identification (ANI) information indicating the modified phone number.

6. The call processing system of claim 5 wherein the modified portion of the modified phone number indicates the sequence number.

7. A method of operating a call processing system comprising:

receiving call signaling for a call from a call system and receive user information during the call from a user using the call system wherein the call signaling includes an identifier for the call system;

generating a sequence number for the call within a sequence of multiple calls;

modifying the identifier to generate a modified identifier indicating the sequence number;

transferring the sequence number and the user information to a database system; and

transferring new call signaling for the call to a destination wherein the new call signaling indicates the modified identifier.

8. The method of claim 7 wherein the call signaling comprises automatic number identification (ANI) information and wherein the ANI information includes the identifier and wherein the method comprises modifying the ANI information to generate the modified identifier.

9. The method of claim 8 wherein the identifier comprises a phone number for the call system and wherein the modified identifier comprises a modified phone number.

10. The method of claim 9 comprising modifying a portion of the phone number to generate the modified phone number having a modified portion.

11. The method of claim 10 wherein the new call signaling comprises new automatic number identification (ANI) information indicating the modified phone number.

12. The method of claim 11 wherein the modified portion of the modified phone number indicates the sequence number.

13. A communication system comprising:

a call processing system configured to receive call signaling for a call from a call system and receive user information during the call from a user using the call system wherein the call signaling includes an identifier for the call system, generate a sequence number for the call within a sequence of multiple calls, modify the identifier to generate a modified identifier indicating the sequence number, transfer the sequence number and the user information to a database system, and transfer new call signaling for the call to a destination system wherein the new call signaling indicates the modified identifier;

the database system coupled to the call processing system and configured to receive sequence number and user information, store the user information in association with the sequence number, receive a query indicating the sequence number, and transfer a response indicating the user information; and

a destination system coupled to the call processing system and the database system and configured to receive the new call signaling, transfer the query to the database system, and receive the user information from the database system in response to the query.

14. The communication system of claim 13 wherein the call signaling comprises automatic number identification (ANI) information and wherein the ANI information includes the identifier and wherein the call processing system is configured to modify the ANI information to generate the modified identifier.

15. The communication system of claim 14 wherein the identifier comprises a phone number for the call system and wherein the modified identifier comprises a modified phone number.

16. The communication system of claim 15 wherein the processing system is configured to modify a portion of the phone number to generate the modified phone number having a modified portion.

17. The communication system of claim 16 wherein the new call signaling comprises new automatic number identification (ANI) information indicating the modified phone number.

18. The communication system of claim 17 wherein the modified portion of the modified phone number indicates the sequence number.

19. The communication system of claim 13 wherein the call processing system comprises an interactive voice response (IVR) unit and wherein the destination system comprises a call center.