Method and device for device-to-device enablement of camp-on capability

• US 6,501,750 B1
• Filed: 06/05/1998
• Issued: 12/31/2002
• Est. Priority Date: 06/05/1998
• Status: Expired due to Term

• Current Assignee: Unify Inc. (Atos SE)
• Original Assignee: Siemens Information And Communication Networks, Inc. (Siemens AG)
• Inventors: Beyda, William Joseph, Shaffer, Shmuel
• Primary Examiner(s): Hsu, Alpus H.
• Assistant Examiner(s): SHAND, ROBERTA A
• Application Number:
  US09/092,427
• Time in Patent Office: 1,670 Days
• Field of Search: 370/278, 370/259, 370/401, 370/352, 370/522, 379/201, 379/164, 379/220, 379/309, 379/88.17, 379/93.01, 379/93.05, 379/93.07, 709/201, 709/203, 709/250
• US Class Current: 370/352
• CPC Class Codes: H04M 3/4288 Notifying a called subscriber of an incoming call during an ongoing call, e.g. Call Waiting
• CPC Class Codes: H04M 3/48 Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy
• CPC Class Codes: H04M 7/12 for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal

Abstract

A notification method for providing camp-on capability includes utilizing device-to-device signal exchanges via a data network. As a result, the camp-on capability may be enabled at a called communication device by means of a signal sent from a calling communication device. In the preferred embodiment, the data network is the global communications network referred to as the Internet, but this is not critical. As a response to the determination that the called communication device, such as the telephone, is in an unavailable condition, a first notification signal is transmitted from a calling communication device to the unavailable called device. The first notification signal may be an application program that is automatically executed at the called device. Alternatively, the first notification signal may be a special protocol element that triggers execution of a camp-on program stored at the called device. The first notification signal includes the network address of the calling device. When the executed program determines that the called communication device is available to receive an incoming call, a second notification signal is transmitted to the original calling device. In response, the original calling device reinitiates the process of establishing connectivity with the called device.

Claims

1. A notification method of exchanging call signals between communication devices via a data network comprising steps of:

initiating a call from a calling communication device to a called communication device;

in response to a determination that said called communication device is in an unavailable condition for receiving said call, initiating a camp-on capability that is executable by said called communication device, including transmitting a first notification signal directly from said calling communication device to said called communication device, said first notification signal being configured to automatically trigger a second notification signal that is transmitted directly from said called communication device to said calling communication device when said called communication device is in an available condition to receive said call, said first notification signal including a network address of said calling communication device;

formatting said first notification signal such that said first notification signal is stored In memory of said called communication device for access when said called communication device switches from said unavailable condition to said available condition; and

after receiving said second notification signal from said called communication device, reinitiating said call from said calling communication device to said called communication device;

thereby providing said camp-on capability using direct device-to device signal exchanges.

2. The method of claim 1 further comprising a step of formatting said first notification signal such that said first notification signal is stored in memory of said called communication device for access when said called communication device switches from said unavailable condition to said available condition.

3. The method of claim 2 further comprising a step of receiving said second notification signal as a second application program that is specific to providing contact between said calling and called communication devices.

4. The method of claim 1 wherein said step of transmitting said first notification signal includes sending a protocol element, said called and calling communication devices being personal computers.

5. The method of claim 1 wherein said steps of initiating said call and transmitting said first notification signal include utilizing the Internet, said first notification signal including an IP address of said calling communication device.

6. The method of claim 1 further comprising a step of forming said first notification signal such that an identity of said calling communication device is displayed at said called communication device while said called communication device is in said unavailable condition, said unavailable condition being a busy condition.

7. The method of claim 1 wherein said step of reinitiating said call is executed automatically upon receiving said second notification signal.

8. A method of exchanging call signals between communication devices via a data network comprising steps of:

utilizing a dialer client of a first Internet-enabled device to direct a call to a second Internet-enabled device via the Internet;

detecting a busy condition of said second Internet-enabled device as a response to said directed call; and

enabling a device-to-device camp-on feature at said second Internet-enabled device by transmitting an application program from said first Internet-enabled device to said second Internet-enabled device, said application program being an applet that is stored in memory at said second Internet-enabled device that is in said busy condition, said applet being specific to automatically generating an Internet communication from said second Internet-enabled device to said first Internet-enabled device when said busy condition at said second Internet-enabled device is terminated.

9. The method of claim 8 further comprising a step of enabling an automatic call to said second Internet-enabled device as an automated response to said Internet communication from said second Internet-enabled device.

10. The method of claim 9 wherein said Internet communication includes a second application program, said second application program being specific to executing said automatic call to said second Internet-enabled device.

11. The method of claim 8 wherein said step of utilizing said client dialer includes accessing resources of a first personal computer to initiate a telephone call to a second personal computer, said first and second personal computers being said first and second Internet-enabled devices, respectively.

12. The method of claim 8 further comprising a step of enabling display of an identification of said call as a response to said step of detecting said busy condition, said identification being presented at said second Internet-enabled device.

13. An Internet-enabled device comprising:

a dialer interface contained within a personal computer for establishing telephonic connections via the Internet;

detector means contained within said personal computer for recognizing a busy condition at a remote Internet-enabled device to which said dialer interface is used to direct a call;

camp-on means, responsive to said detector means, for transmitting a first notification signal as an application program from said personal computer to said remote Internet-enabled device in response to a recognition of said busy condition, said first notification signal having a configuration to automatically trigger transmission of a second notification signal from said remote Internet-enabled device to said personal computer upon termination of said busy condition, said personal computer and said remote Internet-enabled device being user-dedicated devices; and

monitor means for activating said dialer interface to contact said remote Internet-enabled device as an automated response to detecting a reception of said second notification signal.

14. The device of claim 13 wherein said camp-on means is coupled to memory for storing said first notification signal, said first notification signal including an Internet Protocol address for activating said dialer interface.