Methods and systems for providing wide-band voice service via a telephone switch system

• US 7,236,484 B2
• Filed: 07/22/2002
• Issued: 06/26/2007
• Est. Priority Date: 07/22/2002
• Status: Expired due to Fees

• Current Assignee: WSOU Investments, LLC (WSOU Holdings, LLC)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Posthuma, Carl Robert, Kott, Joseph John
• Primary Examiner(s): Nguyen, Chau
• Assistant Examiner(s): Rose, Kerri M
• Application Number:
  US10/200,368
• Publication Number:
  US 20040013122A1
• Time in Patent Office: 1,800 Days
• Field of Search: 370/352, 370/353, 370/354, 370/355, 370/356, 370/395.2, 370/395.21, 370/401, 370/465, 370/484, 370/498, 370/540, 370/468
• 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

Methods and systems for providing wide-band voice service via a telecommunications switch are described herein. A call can be initiated from a wide-band telecommunications device (e.g., an IP telephone) to another telecommunications device through a gateway (e.g., an IP gateway) associated with one or more telecommunications networks, such as, for example, a WAN, LAN and/or PSTN. One or more digital signals (e.g., 4 or fewer DS0s) can then be reserved for the call, if a telecommunications switch (e.g., a class 5 circuit switch, 5ESS®, etc.) associated with one or more of the telecommunications networks determines that at least one timeslot is available to permit a transfer of the call to the other telecommunications device. Thereafter, a wide-band signal converted from the digital signal carrying the call from the gateway to the other telecommunications device can be passed over a telecommunications interface, such as a GR-303 connection, as determined by the telecommunications switch to the other telecommunications device.

Claims

1. A method for providing wide-band voice service via a telecommunication switch, the method comprising the steps of:

initiating a call from a wide-band telecommunications device to another telecommunication device through a gateway associated with at least one telecommunication network;

reserving up to four digital signals for the call, in response to a request from a gateway to a telecommunications switch associated with the at least one telecommunication network;

analyzing an identification number associated with the another telecommunications device utilizing the telecommunications switch to determine if the another telecommunications device comprises a wide-band telecommunications device or a narrow-band telecommunications device, thereby permitting a completion of the call from the wide-band telecommunications device to the another telecommunications device utilizing the up to four digital signals and the telecommunications switch over the at least one telecommunications network; and

sending a busy signal to the wide-band telecommunications device if at least one timeslot is not available to permit a transfer of the call to the another telecommunications device when reserving the up to four digital signals for the call.

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

completing the call from the wide-band telecommunications device to the another telecommunications device as a wide-band call utilizing at least one of the up to four digital signals, if the another telecommunications device comprises a wide-band telecommunications device; and

completing the call from the wide-band telecommunications device to the another telecommunication device as a narrow-band call utilizing at least one of the up to four digital signals, if the another telecommunications device comprises a narrow-band telecommunication device.

3. The method of claim 1 wherein the step of reserving up to four digital signals for the call, in response to a request from a gateway to a telecommunication switch associated with the at least one telecommunications network, further comprises the step of:

reserving at least one digital signal for the call, if a telecommunications switch associated with the at least one telecommunications network determines that the at least one timeslot is available to permit a transfer of the call to the another telecommunication device.

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

converting the up to four digital signals carrying the call to a wide-band signal at the gateway; and

transferring the wide-band signal to the another telecommunications device for a completion of the call.

5. The method of claim 1 further comprising the step of:

utilizing a lead digital signal to establish a connection between the wide-band telecommunications device and the another telecommunications device, of the another telecommunication device comprises a non-wide-band telecommunications device.

6. The method of claim 5 further comprising the step of:

converting the wide-band signal at the gateway to a narrow-band signal if the call is terminated at a line, which is not wide-band equipped.

7. The method of claim 1 wherein the telecommunications device comprises an IP telephone.

8. The method of claim 1 wherein the telecommunications interface comprises a GR-3O3 connection.

9. The method of claim 1 wherein the telecommunications switch comprises a class 5 circuit switch.

10. A method for providing wide-band, voice service via a telecommunication switch, the method comprising the steps of:

initiating a call from an IP telephone to another telecommunications device through a IP gateway associated with at least one telecommunications network;

reserving up to four digital signals for the call if a telecommunications switch associated with the at least one telecommunications network determines that at least one timeslot is available to permit a transfer of the call to the another telecommunications device;

utilizing a lead digital signal to establish a connection between the IP telephone and the another telecommunications device, if the another telecommunications device comprises a non-wide-band telecommunications device;

converting the up to four digital signals carrying the call to a wide-band signal at the IP gateway;

thereafter passing the wide-band signal converted from the IP gateway to the another telecommunications device over a telecommunications interface as determined by the telecommunications switch to thereby complete the call from the IP telephone to the another telecommunications device; and

sending a busy signal to the IP telephone if the at least one timeslot is not available when reserving the up to four digital signals for the call.

11. A system for providing wide-band voice service via a telecommunication switch, the system comprising:

an IP telephone from which a call is initiated to another telecommunications device through an IP gateway associated with at least one telecommunications network;

an IP gateway associated with the at least one telecommunications network, wherein up to four digital signals are reserved for the call, in response to a request from a gateway to a telecommunications switch associated with the at least one telecommunication network; and

a telecommunications switch associated with the at least one telecommunications network, wherein the telecommunications switch analyzes an identification number associated with the another telecommunications device to determine if the another telecommunications device comprises a wide-band telecommunication device or a narrow-band telecommunications device, thereby permitting a completion of the call from the wide-band telecommunications device to the another telecommunications utilizing the up to four digital signals and the telecommunications switch over the at least one telecommunications network;

wherein a busy signal is sent to the IP telephoner if at least one timeslot is not available to permit a transfer of the call to the another telecommunications device when reserving the up to four digital signals for the call.

12. The system of claim 11 wherein:

the call from the wide-band telecommunications device is completed to the another telecommunications device as a wide-band call utilizing at least one of the up to four digital signals, if the another telecommunications device comprises a wide-band telecommunications device; and

the call from the wide-band telecommunications device to the another telecommunication device is completed as a narrow-band call utilizing at least one of the up to four digital signals, if the another telecommunications device comprises a narrow-band telecommunications device.

13. The system of claim 11 wherein at least one digital signal is reserved or the call, if the telecommunications switch determines that the at least one timeslot is available to permit a transfer of the call to the another telecommunications device.

14. The system of claim 11 wherein a lead digital signal establishes a connection between the IP telephone and the another telecommunications device, if the another telecommunications device comprises a non-wide-band telecommunication device.

15. The system of claim 11 wherein the telecommunications interface comprises a GR-303 connection.

16. The system of claim 11 wherein the telecommunications switch comprises a class 5 circuit switch.

17. The system of claim 11 further comprising a conversion module, which converts the wide-band signal at the gateway to a narrow-band signal if the call is terminated at a line which is not wide-band equipped.

18. The system of claim 17 wherein the conversion module further comprises:

instruction media residing in a computer for instructing the computer to convert the up to four digital signals to the wide-band signal; and

signal-bearing media.

19. The system of claim 18 wherein the signal bearing media further comprises transmission media.

20. The system of claim 19 wherein the signal-bearing media further comprises recordable media.