Holding party call back subscriber feature

• US 5,764,746 A
• Filed: 05/30/1996
• Issued: 06/09/1998
• Est. Priority Date: 05/30/1996
• Status: Expired due to Term

• Current Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Reichelt, Martin
• Primary Examiner(s): Zele, Krista
• Assistant Examiner(s): WEAVER, SCOTT LOUIS
• Application Number:
  US08/657,973
• Time in Patent Office: 740 Days
• Field of Search: 379/162, 379/163, 379/215, 379/213, 379/212, 379/211, 379/210, 379/207, 379/201, 379/265, 379/266, 379/309, 379/127, 379/142, 379/89, 379/88, 379/69, 379/70, 379/67, 379/164
• US Class Current: 379/210.01
• CPC Class Codes: H04M 3/428 Arrangements for placing incoming calls on hold
• CPC Class Codes: H04M 3/4283 Call holding circuits
• CPC Class Codes: H04M 3/48 Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy

Abstract

A first subscriber activates a hold call back subscriber feature in response to a second subscriber placing the first subscriber on call hold. After the activation, the first subscriber goes onhook. When the second subscriber later wishes to take the first subscriber off of call hold, a first end office serving the first subscriber recognizes the second subscriber'"'"'s action and accordingly alerts the first subscriber back. Upon answering the ring back, a call connection is re-established between the first subscriber and the second subscriber. A connection-less signal is communicated between the first end office and a second end office serving the second subscriber to queue, monitor, and inform the second subscriber'"'"'s action. Upon receiving a connection-less signal from the second office indicating that the second subscriber wishes to take the first subscriber off of call hold, the first end office originates another call setup request towards the second subscriber.

Claims

1. A method for establishing a call connection between a first terminal connected to a first end office and a second terminal connected to a second end office within a telecommunications network, said method comprising the steps of:

establishing a first call connection between said first terminal and said second terminal, said first call connection comprising a certain connection between said first end office and said second end office;

recognizing that said second terminal has put said first terminal on call hold;

recognizing that said first terminal has gone onhook in response to said call hold;

recognizing that said first terminal has been taken off of said call hold;

establishing a second certain connection originating from said first end office to said second end office in response to said step of recognizing that said first terminal has been taken off of said call hold;

alerting said first terminal in response to said recognition of said second terminal taking said first terminal off of said call hold; and

connecting said alerted first terminal back to the second certain connection to establish a second call connection between said first terminal and said second terminal.

2. The method of claim 1 further comprising the steps of:

receiving a request to queue an entry towards said second terminal by said second end office in response to said second terminal placing said first terminal on hold;

queuing said request towards said second terminal; and

disconnecting said certain connection between said first end office and said second end office.

3. The method of claim 2 further comprising the step of transmitting a signal from said second end office to said first end office in response to said step of recognizing that said first terminal has been taken off of said call hold.

4. The method of claim 3 wherein said signal comprises a connection-less signal.

5. The method of claim 4 wherein said connection-less signal comprises a Transaction Capabilities Application Part (TCAP) signal.

6. A method for establishing a call connection between a first terminal associated with a first end office and a second terminal associated with a second end office within a telecommunications network, said method comprising the steps of:

establishing a first call connection between said first terminal and said second terminal;

receiving a request to queue an entry representing call-on-hold by said second end office in response to said second terminal placing said first terminal on call hold;

disconnecting said first call connection without informing said second terminal in response to a successful queuing of said entry;

recognizing by said second end office that said first terminal has been taken off of said call hold;

transmitting a signal by said second end office to said first end office informing of said recognition; and

establishing a second call connection originating from said first end office to said second end office in response to said signal.

7. The method of claim 6 wherein said step of receiving said request further comprises the step of receiving a first connection-less signal from said first end office instructing said second end office to queue said entry.

8. The method of claim 7 wherein said step of transmitting said signal comprises the step of transmitting a second connection-less signal.

9. The method of claim 6 wherein said second end office further comprises an announcement machine and wherein said step of recognizing that said first terminal has been taken off of said call hold further comprises the step of establishing a third call connection between said announcement machine and said second terminal, said announcement machine informing said second terminal that said first terminal is being alerted.

10. The method of claim 9 wherein said step of establishing said second call connection further comprises the step of disconnecting said third connection between said announcement machine and said second terminal and connecting said second terminal to said second call connection originated by said first end office.

11. A system for establishing a call connection between a first terminal associated with a first end office and a second terminal associated with a second end office within a telecommunications network, said system comprising:

means for establishing a first call connection between said first terminal and said second terminal;

means for receiving a request to queue an entry representing call-on-hold by said second end office in response to said second terminal placing said first terminal on call hold;

means for disconnecting said first call connection without informing said second terminal in response to a successful queuing of said entry;

means for recognizing by said second end office that said first terminal has been taken off of said call hold;

means for transmitting a signal by said second end office to said first end office informing of said recognition; and

means for establishing a second call connection originating from said first end office to said second end office in response to said signal.

12. The system of claim 11 wherein said means for receiving said request further comprises means for receiving a first connection-less signal from said first end office instructing said second end office to queue said entry.

13. The system of claim 12 wherein said means for transmitting said signal further comprises means for transmitting a second connection-less signal.

14. The system of claim 11 wherein said second end office further comprises an announcement machine and wherein said means for recognizing that said first terminal has been taken off of said call hold further comprises means for establishing a third call connection between said announcement machine and said second terminal, said announcement machine informing said second terminal that said first terminal is being alerted.

15. The system of claim 14 wherein said means of establishing said second call connection further comprises means for disconnecting said third connection between said announcement machine and said second terminal and connecting said second terminal to said second call connection originated by said first end office.