Call hold with reminder and information push

• US 6,836,478 B1
• Filed: 12/30/1999
• Issued: 12/28/2004
• Est. Priority Date: 12/30/1999
• Status: Expired due to Term

• Current Assignee: Open Invention Network LLC
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Huang, Laura, Kung, Fen-Chung, Russell, Jesse Eugene, Walker, Hopeton, Wang, Spencer
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): LY, ANH VU H
• Application Number:
  US09/475,673
• Time in Patent Office: 1,825 Days
• Field of Search: 370/477, 370/259, 370/271, 370/395.5, 379/142.08, 379/142.16, 379/215.01, 379/206.01, 379/218.01, 379/157-158, 379/352, 379/835, 379/236, 379/261, 379/389, 379/392, 379/401, 379/433, 379/466, 379/493, 348/14.01, 348/14.06
• US Class Current: 370/352
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways

Abstract

A broadband communication system including an Internet Protocol Telephony Network and public switched telephone network, including apparatus and methods for placing a call on hold in a way that significantly reduces the amount of network bandwidth utilized by the call while the call is on hold. When a call is placed on hold, embodiments of the architecture of the telephony network of the present invention allows the network to essentially “forget” about the call placed on hold. In other words, a call that is on hold may require very little, or even zero, bandwidth within the telephony network. Accordingly, the total necessary bandwidth capacity of the telephony network may be smaller than it would be if calls on hold were to consume precious network bandwidth as is found in existing telephony systems.

Claims

1. A method for placing a call on hold comprising,

a customer premises equipment of a first party sending a stream of internet protocol (IP) packets associated with the call into a service provider'"'"'s IP telephony network over an IP telephony connection to a second party;

the customer premises equipment receiving via the service provider'"'"'s IP telephony network a first request to place the call on hold, said first request having been generated in response to said second party having placed the call on hold;

the customer premises equipment temporarily stopping from sending the stream of IP packets into the service provider'"'"'s IP telephony network responsive to receiving the request without said connection being disconnected, and without said connection being terminated, and without said connection being torn down;

the customer premises equipment receiving via the service provider'"'"'s IP telephony network a second request to remove the call from hold, said second request having been generated in response to said second party having removed the call from hold; and

the customer premises equipment resuming sending the stream of IP packets into the service provider'"'"'s IP telephony network during said call over said connection responsive to receiving the second request, thereby reducing an amount of network bandwidth utilized by the call while on hold.

2. The method of claim 1, wherein the IP packets represent real-time speech.

3. The method of claim 1, wherein the call is a real-time call.

4. The method of claim 1, further including the customer premises equipment sending an interrupt into the service provider'"'"'s IP telephony network, while the call is on hold, for requesting that the call be removed from hold.

5. The method of claim 1, further including the customer premises equipment continuing to receive an incoming stream of IP packets via the service provider'"'"'s IP telephony network while the call is on hold, the incoming stream of IP packets representing at least one of audio, video, and speech.