System for incremental redistribution of telephony applications computing workload

• US 5,787,153 A
• Filed: 08/09/1996
• Issued: 07/28/1998
• Est. Priority Date: 09/29/1995
• Status: Expired due to Term

• Current Assignee: Unisys Corporation
• Original Assignee: Unisys Corporation
• Inventors: Cannavo, Samuel, Gulrajani, Suren Ram, Bankay, Robert
• Primary Examiner(s): Tsang, Fan S.
• Application Number:
  US08/694,517
• Time in Patent Office: 718 Days
• Field of Search: 379/67, 379/88, 379/89, 379/133, 379/134, 379/137, 379/333, 379/334, 379/220, 379/221, 379/229, 370/464, 370/468, 370/465, 370/536
• US Class Current: 379/88.18
• CPC Class Codes: H04M 3/53325 Interconnection arrangements between voice mail systems
• CPC Class Codes: H04Q 3/54516 Initialization, software or data downloading G06F9/445 takes precedence

Abstract

Disclosed is a telephony messaging transfer system permitting a messaging host to redistribute its processing and/or storage load to another messaging host. An administrator can dynamically control the amount of time needed to transfer specified mailboxes by monitoring the progress on-line and increasing or decreasing the number of transfer dialogs to be used in the transfer process. Also provided is a predictive simulator for simulating the transfer process and providing statistics that can be used to adjust the timing of the actual transfer.

Claims

1. A system for transferring voice and data in a telephony application from a source host to a destination host, comprising:

means for permitting a user to specify a number of mailboxes to be transferred;

means for permitting a user to specify a number of transfer dialogs to be used for said transfer of voice and data;

means for identifying static and dynamic data to be transferred;

means for transferring static data first and thereafter transferring dynamic data, wherein numerical mailbox data and numerical message data are transferred by encoding said numerical mailbox and numerical message data in digitized Dual Tone Multiple Frequency (DTMF) tones, and wherein voice messages are transferred as digital voice data; and

means for permitting a user to monitor characteristics of said transfer as said transfer is occurring.

2. A system as claimed in claim 1, wherein the voice and data transfer is effected by employing one or more transfer dialogs between said source and destination hosts, and further comprising means for dynamically adjusting an amount of time required to complete said transfer by increasing or decreasing the number of transfer dialogs employed in the transfer.

3. A system as claimed in claim 1, further comprising means for maintaining relationships among all components of mailboxes to be transferred.

4. A system as recited in claim 3, wherein said means for maintaining relationships among all components of mailboxes to be transferred includes means for maintaining a key associated with each voice message to relate each voice message to corresponding non-voice data, wherein the non-voice data is identified by a mailbox number.

5. A system as claimed in claim 4, wherein said components of said mailboxes to be transferred include each mailbox holder'"'"'s recorded name, greetings, extended absence greetings, subscriber groups, group titles, and mailbox voice messages.

6. A system as claimed in claim 1, further comprising simulation means for simulating the voice and data transfer before an actual transfer is carried out, wherein the amount of time to complete said transfer is estimated by said voice and data simulation means.

7. A system as claimed in claim 1, further comprising means for detecting data corrupted during the transfer and resending the corrupted data.

8. A system as claimed in claim 1, further comprising means for permitting a user to specify a number of mailboxes to be transferred and an amount of time to complete the voice and data transfer.

9. A system as claimed in claim 1, wherein the voice and data transfer is effected by employing one or more transfer dialogs between said source and destination hosts, and further comprising means for dynamically adjusting an amount of time required to complete said voice and data transfer by increasing or decreasing the number of transfer dialogs employed in the transfer;

further comprising means for maintaining relationships among all components of mailboxes to be transferred;

further comprising simulation means for simulating said voice and data transfer before an actual transfer is carried out, wherein the amount of time to complete said voice and data transfer is estimated by said simulation means;

further comprising means for detecting data corrupted during the transfer and resending the corrupted data; and

further comprising means for permitting a user to specify a number of mailboxes to be transferred and an amount of time to complete the transfer of said mailboxes.

10. A system as recited in claim 9, wherein said means for maintaining relationships among all components of the mailboxes to be transferred includes means for maintaining a key associated with each voice message to relate each voice message to corresponding numerical data, wherein the numerical data is identified by a mailbox number;

and wherein said components of said mailboxes to be transferred include each mailbox holder'"'"'s recorded name, greetings, extended absence greetings, subscriber groups, group titles, and mailbox voice messages.

11. A system as claimed in claim 6, wherein said simulation means includes means for analyzing the order in which the mailboxes will be transferred and estimates of the time taken to transfer each mailbox.

12. A system as claimed in claim 1, wherein the system permits the selection of groups of mailboxes, auto attendants, and/or any atomic voice or data component to be transferred.

13. A method for transferring voice and data in a telephony application from a source host to a destination host, comprising the steps of:

specifying a number of mailboxes to be transferred;

specifying a number of transfer dialogs to be used for said transfer of voice and data;

identifying static and dynamic data to be transferred; and

transferring static data first and thereafter transferring dynamic data, wherein numerical mailbox data and numerical message data are transferred by encoding said numerical mailbox and numerical message data in digital Dual Tone Multiple Frequency (DTMF) tones, and wherein voice messages are transferred as digital voice data; and

permitting a user to monitor characteristics of said transfer as said transfer is occurring.

14. A method as claimed in claim 13, wherein the voice and data transfer is effected by employing one or more transfer dialogs between said source and destination hosts, and further comprising dynamically adjusting an amount of time required to complete said transfer by increasing or decreasing the number of transfer dialogs employed in the transfer.

15. A method as claimed in claim 13, further comprising maintaining relationships among all components of mailboxes to be transferred.

16. A method as recited in claim 15, wherein said step of maintaining relationships among all components of the mailboxes to be transferred includes maintaining a key associated with each voice message to relate the voice message to corresponding non-voice data, wherein the non-voice data is identified by a mailbox number.

17. A method as claimed in claim 16, wherein said components of said mailboxes to be transferred include each mailbox holder'"'"'s recorded name, greetings, extended absence greetings, subscriber groups, group titles, and mailbox voice messages.

18. A method as claimed in claim 13, further comprising simulation simulating the voice and data transfer before an actual transfer is carried out, wherein the amount of time to complete said voice and data transfer is estimated in said simulation step.

19. A method as claimed in claim 13, further comprising detecting data corrupted during the transfer and resending the corrupted data.

20. A method as claimed in claim 13, further comprising permitting a user to specify a number of mailboxes to be transferred and an amount of time to complete the voice and data transfer.

21. A method as claimed in claim 13, wherein said voice and data transfer is effected by employing one or more transfer dialogs between said source and destination hosts, and further comprising dynamically adjusting an amount of time required to complete said voice and data transfer by increasing or decreasing the number of transfer dialogs employed in the voice and data transfer;

further comprising maintaining relationships among all components of mailboxes to be transferred;

further comprising simulation simulating said voice and data transfer before an actual transfer is carried out, wherein the amount of time to complete said voice and data transfer is estimated in said simulation step;

further comprising detecting data corrupted during the voice and data transfer and resending the corrupted data; and

further comprising permitting a user to specify a number of mailboxes to be transferred and an amount of time to complete the transfer of said mailboxes.

22. A method as recited in claim 21, wherein said step of maintaining relationships among all components of the mailboxes to be transferred includes maintaining a key associated with each voice message to relate each voice message to corresponding numerical data, wherein the numerical data is identified by a mailbox number;

and wherein said components of said mailboxes to be transferred include each mailbox holder'"'"'s recorded name, greetings, extended absence greetings, subscriber groups, group titles, and mailbox voice messages.

23. A method for distributing a call processing load, comprising the steps of:

a) defining a distribution session;

b) connecting hosts to be used in transfer of data;

c) verifying configuration of outgoing lines of a source system;

d) verifying configuration of incoming lines of a destination system;

e) transferring static data before a first distribution session is run;

f) transferring mailbox-related data;

g) transferring voice data one mailbox at a time;

h) receiving said static data;

i) receiving said mailbox-related data;

j) receiving said voice data;

k) verifying non-voice data for accuracy;

l) rejecting any corrupted data; and

m) resending said corrupted data, if any.

24. A method for performing incremental transfer of voice and data in a telephony application from a source host to a destination host, comprising the steps of:

specifying a number of mailboxes to be transferred;

specifying a number of transfer dialogue to be used for said transfer of voice and data;

identifying static and dynamic data to be transferred; and

transferring static data first and thereafter transferring dynamic data;

wherein numerical mailbox data and numerical message data are transferred by encoding said numerical data in digital Dual Tone Multiple Frequency (DTMF) tones, voice messages are transferred as digital voice data, and the transfer of the identified static and dynamic data is performed while maintaining availability of the telephony application to most of its users.

25. A method as recited in claim 24, further comprising permitting a user to monitor characteristics of the transfer.