Method and apparatus for co-socket telephony

• US 7,813,334 B2
• Filed: 06/02/2005
• Issued: 10/12/2010
• Est. Priority Date: 07/21/1998
• Status: Expired due to Fees

• Current Assignee: RPX Corporation
• Original Assignee: Rpx-Nw Acquisition LLC (RPX Corporation)
• Inventors: Dowling, Eric Morgan
• Primary Examiner(s): Kuntz; Curtis
• Assistant Examiner(s): Islam; Mohammad K
• Application Number:
  US11/142,369
• Publication Number:
  US 20050220086A1
• Time in Patent Office: 1,958 Days
• Field of Search: 370260-267, 370351-357, 370/432, 370/458, 370/460, 370/466, 370/467, 370/468, 379/202.01, 379/204.01, 379/211.02, 709/229
• US Class Current: 370/352
• CPC Class Codes: H04L 2101/663 Transport layer addresses, e.g. aspects of transmission control protocol [TCP] or user datagram protocol [UDP] ports
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/162 involving adaptations of sockets based mechanisms secure socket layer H04L63/168
• CPC Class Codes: H04L 69/163 In-band adaptation of TCP data exchange; In-band control procedures
• CPC Class Codes: H04L 69/165 Combined use of TCP and UDP protocols; selection criteria therefor
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04M 11/06 Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
• CPC Class Codes: H04M 3/42042 Notifying the called party of information on the calling party details within substation equipment H04M1/57, signalling details H04Q3/72
• CPC Class Codes: H04M 3/5191 interacting with the Internet
• CPC Class Codes: H04M 7/0057 Services where the data services network provides a telephone service in addition or as an alternative, e.g. for backup purposes, to the telephone service provided by the telephone services network
• CPC Class Codes: H04M 7/0075 Details of addressing, directories or routing tables

Abstract

A network based communication system allows a voice-over-IP (VoIP) packet data connection to be established by sending a subscriber address to a remote database server. The database server converts the subscriber address to an Internet address and informs the wireless handset of an active Internet address to be used to complete the call. In some embodiments the subscriber address is a telephone number that can also be used to reach the subscriber using the public switched telephone network. Other types of media are also supported like digital pictures, digital video, chat sessions, and application sharing sessions.

Claims

1. A communication system, comprising:

network access equipment that includes a first type of wireless air interface which supports circuit-switched communications with at least some of a plurality of wireless handheld devices, and a second type of wireless air interface that supports packet-switched communications with the at least some of the wireless handheld devices, wherein the at least some of the wireless handheld devices each include a first wireless air interface to support wireless circuit-switched communications and a second wireless air interface to support wireless packet-switched communications;

a database server coupled at least partially via an internet protocol (IP) packet-switched network to the network access equipment and that provides dynamic information indicative of IP addresses available for use in communicating with respective ones of the wireless handheld devices; and

a call setup protocol operative to set up a call from a particular wireless handheld device of the at least some of the wireless handheld devices to a telephony device associated with a callee, wherein;

the particular wireless handheld device transmits via the network access equipment, to the database server a set of dialing digits corresponding to a telephone number where the callee can be reached via a public switched telephone network (PSTN);

in response to receiving the particular set of dialing digits, the database server sends back to the particular wireless handheld device, at least partially via the IP packet-switched network and via the network access equipment, a first destination IP address where the telephony device associated with the callee can be presently reached at least partially via the IP packet-switched network; and

the particular wireless handheld device causes to be established a first IP connection comprising a voice over internet (VoIP) communication connection, to complete at least a portion of the call with the telephony device associated with the callee, using the first destination IP address, wherein a stream of voice data packets associated with the VoIP communication connection is wirelessly carried between the particular wireless handheld device, and the network access equipment,

wherein the particular wireless handheld device is configured to wirelessly support both circuit-switched telephone calls and packet-switched VoIP telephony calls using one or more wireless connections.

2. The communication system of claim 1, wherein the call setup protocol is further operative to send back to the particular wireless handheld device a second destination IP address for use in establishing a second IP connection between the particular wireless handheld device and the network access equipment in order to support communication of an additional media type other than VoIP media data.

3. The communication system of claim 2, wherein the second IP connection is used to send a digital picture from the particular wireless handheld device to the telephony device.

4. The communication system of claim 2, wherein the second IP connection is used to send a video clip from the particular wireless handheld device to the telephony device.

5. The communication system of claim 2, wherein the second IP connection is used to support two-way real-time video communication between the particular wireless handheld device and the telephony device.

6. The communication system of claim 2, wherein the second IP connection is used to couple textual characters entered into the particular wireless handheld device to the telephony device.

7. The communication system of claim 2, wherein the second IP connection is used to support a two-way real-time chat session between the particular wireless handheld device and the telephony device.

8. The communication system of claim 2, wherein the second IP connection is used to couple an application layer data stream from a first application program in the particular wireless handheld device to a second application program in the telephony device.

9. The communication system of claim 8, wherein the second IP connection is used to cause an application window to be popped onto a display surface of the telephony device.

10. The communication system of claim 1, wherein the user interface of the particular wireless handheld device comprises an interface selected from a group consisting of a keypad interface which enables the respective user to specify the particular set of dialing digits by manually keying in the particular set of dialing digits to thereby dial the telephone number of the particular callee, and a menu-based user interface which enables the respective user to select the particular set of dialing digits via interaction with the menu-based user interface.

11. The communication system of claim 1, wherein the IP packet-switched network comprises a portion of the ubiquitous global Internet.

12. The method of claim 1, wherein the internet protocol comprises an Internet protocol.

13. For use in a communication environment comprising a plurality of subscribers each having a wireless handheld device which provides a respective user interface to enable a respective subscriber to specify a call destination identifier to identify a telephony device associated with a callee, a communication system, comprising:

network access equipment that includes a first type of wireless air interface which supports circuit-switched communications with at least some of a plurality of wireless handheld devices, and a second type of wireless air interface that supports packet-switched communications with the at least some of the wireless handheld devices, wherein the one or more wireless handheld devices each include a first wireless air interface to support wireless circuit-switched communications and a second wireless air interface to support wireless packet-switched communications;

a database server coupled at least partially via an internet protocol (IP) packet-switched network to the network access equipment; and

a call setup protocol operative to set up a call from a particular wireless handheld device to the telephony device associated with the callee, wherein;

the particular wireless handheld device transmits via the network access equipment, to the database server the call destination identifier specified by the subscriber of the particular wireless handheld device;

in response to receiving the call destination identifier, the database server sends back to the particular wireless handheld device, at least partially via the IP packet-switched network and via the network access equipment, a first destination IP address where the telephony device associated with the callee can be presently reached at least partially via a path through the IP packet-switched network;

the particular wireless handheld device causes to be established a first IP connection comprising a voice over Internet (VoIP) communication connection, with the telephony device associated with the callee, using the first destination IP address, wherein the particular wireless handheld device wirelessly transmits to the network access equipment a stream of voice data packets, to thereby enable a user of the particular wireless handheld device to engage in voice communication with the callee;

wherein the communication system is configured to support the establishment of both dialed circuit-switched telephone calls and packet-switched VoIP telephony connections between respective wireless handheld devices associated with different ones of the plurality of subscribers and respective telephony devices associated with different respective callees; and

wherein the particular wireless handheld device is configured to wirelessly support both circuit-switched telephone calls and packet-switched VoIP telephony calls using one or more wireless connections.

14. The communication system of claim 13, wherein the call setup protocol is further operative to send back to the particular wireless handheld device a second destination IP address for use in establishing a second IP connection between the particular wireless handheld device and the telephony device in order to support communication of an additional media type other than VoIP media data.

15. The communication system of claim 14, wherein the second IP connection is used to send a digital picture from the particular wireless handheld device to the telephony device.

16. The communication system of claim 14, wherein the second IP connection is used to send a video clip from the particular wireless handheld device to the telephony device.

17. The communication system of claim 14, wherein the second IP connection is used to support two-way real-time video communication between the particular wireless handheld device and the telephony device.

18. The communication system of claim 14, wherein the second IP connection is used to couple textual characters entered into the particular wireless handheld device to the telephony device.

19. The communication system of claim 14, wherein the second IP connection is used to support a two-way real-time chat session between the particular wireless handheld device and the telephony device.

20. The communication system of claim 13, wherein the VoIP communication connection connects the particular wireless handheld device to multiple designated callees by making use of a packet-based teleconferencing protocol that supports multi-way packet-based teleconferences between a plurality of participants.

21. The communication system of claim 20, wherein the packet-based teleconferencing protocol is an H.323 protocol.

22. The communication system of claim 13, wherein the IP packet-switched network comprises a portion of the ubiquitous global Internet.

23. The method of claim 13, wherein the internet protocol comprises an Internet protocol.

24. For use in a communication environment comprising a plurality of subscribers each having a respective wireless handheld device which provides a respective user interface to enable a respective subscriber to specify a set of dialing digits corresponding to a telephone number of a callee where the callee can be reached via telephone calls originated from a public switched telephone network (PSTN), a communication system, comprising:

network access equipment coupled to an internet protocol (IP) packet-switched network, wherein the network access equipment supports packet-switched communications to support wireless data communications with respective ones of the wireless handheld devices;

a database server coupled at least partially via the IP packet-switched network to the network access equipment and that provides dynamic information indicative of active IP addresses available for use in communicating with respective ones of the wireless handheld devices; and

a call setup protocol operative to set up a call from a particular wireless handheld device to a telephony device associated with the callee, wherein;

the particular wireless handheld device transmits to the database server a particular set of dialing digits specified by the respective subscriber of the particular wireless handheld device, via the network access equipment and at least partially via the IP packet-switched network;

in response to receiving the particular set of dialing digits, the database server sends back to the particular wireless handheld device, at least partially via the IP packet-switched network and via the particular network access equipment, a first destination IP address where the telephony device associated with the callee can be presently reached; and

the particular wireless handheld device causes to be established a first IP connection comprising a voice over Internet (VoIP) communication connection, to complete the call with the telephony device, using the first destination IP address;

wherein at least a portion of the VoIP communication connection is wirelessly carried between the particular wireless handheld device and the network access equipment; and

wherein the particular wireless handheld device is configured to wirelessly support both circuit-switched telephone calls and packet-switched VoIP telephony calls using one or more wireless connections.

25. The communication system of claim 24, wherein the call setup protocol is further operative to return a second destination IP address for use in establishing a second IP connection between the particular wireless handheld device and the telephony device in order to support communication of an additional media type other than VoIP media data.

26. The communication system of claim 25, wherein the second IP connection is used to send a digital picture from the particular wireless handheld device to the telephony device.

27. The communication system of claim 25, wherein the second IP connection is used to send a video clip from the particular wireless handheld device to the telephony device.

28. The communication system of claim 25, wherein the second IP connection is used to support two-way real-time video communication between the particular wireless handheld device and the telephony device.

29. The communication system of claim 25, wherein the second IP connection is used to couple textual characters entered into the particular wireless handheld device to the telephony device.

30. The communication system of claim 25, wherein the second IP connection is used to support a two-way real-time chat session between the particular wireless handheld device and the telephony device.

31. The communication system of claim 25, wherein the second IP connection is used to couple an application layer data stream from a first application program in the particular wireless handheld device to a second application program in the telephony device.

32. The communication system of claim 31, wherein the second IP connection is used to cause an application window to be popped onto a display surface of the telephony device.

33. The communication system of claim 24, wherein the user interface of the particular wireless handheld device comprises an interface selected from a group consisting of a keypad interface which enables the respective subscriber to specify the particular set of dialing digits by manually keying in the particular set of dialing digits to thereby dial the telephone number of the particular callee, and a menu-based user interface which enables the respective subscriber to select the particular set of dialing digits via interaction with the menu-based user interface.

34. The communication system of claim 24, wherein the IP packet-switched network comprises a portion of the ubiquitous global Internet.

35. The communication system of claim 24, wherein the particular wireless handheld device supports multi-way packet-based teleconferences between a plurality of participants by conforming with a VoIP teleconferencing standard.

36. The method of claim 24, wherein the internet protocol comprises an Internet protocol.