Delivering a toll-free caller ID on toll-free calls

Patent metadata

Field	Value
Publication number	US-9621715-B2
Application number	US-201514635684-A
Country	US
Kind code	B2
Filing date	Mar 2, 2015
Priority date	Mar 2, 2015
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A computer device may include logic configured to receive a Session Initiation Protocol (SIP) telephone call and identify the SIP telephone call as originating from a first toll-free telephone number and destined for a second toll-free telephone number. The computer device may further determine a screened telephone number associated with the first toll-free telephone number; generate a diversion header that includes the determined screened telephone number for the SIP telephone call, in response to identifying the SIP telephone call as originating from the first toll-free telephone number and destined for the second toll-free telephone number; and send the SIP telephone call to a local exchange carrier network associated with the second toll-free telephone number.

First claim

What is claimed is:

1. A method performed by a computer device, the method comprising:
receiving, by the computer device, a Session Initiation Protocol (SIP) telephone call;
identifying, by the computer device, the SIP telephone call as originating from a first toll-free telephone number and destined for a second toll-free telephone number;
determining, by the computer device, a screened telephone number associated with the first toll-free telephone number, wherein the screened telephone number is assigned to the first toll-free telephone number by a provider network that carries SIP telephone calls between a SIP network associated with the first toll-free telephone number and a local exchange carrier network associated with the second toll-free telephone number;
generating, by the computer device, a diversion header that includes the determined screened telephone number for the SIP telephone call, in response to identifying the SIP telephone call as originating from the first toll-free telephone number and destined for the second toll-free telephone number; and
sending, by the computer device, the SIP telephone call to the local exchange carrier network associated with the second toll-free telephone number.

2. The method of claim 1 , further comprising:
receiving an indication from the local exchange carrier network that the SIP telephone call was rejected by the local exchange carrier network;
generating an asserted identity header that includes an access number associated with the first toll-free telephone number, in response to receiving the indication that the SIP telephone call was rejected by the local exchange carrier network; and
re-sending the SIP telephone call to the local exchange carrier network with the generated asserted identity header.

3. The method of claim 2 , wherein the asserted identity header further includes the first toll-free telephone number as a display number.

4. The method of claim 1 , wherein the computer device functions as a back-to-back user agent for a SIP network associated with the first toll-free telephone number.

5. The method of claim 4 , wherein the computer device includes at least one of:
an Internet Protocol Private Branch Exchange device;
a Session Border Controller device; or
a Session Initiation Protocol Application Server device.

6. The method of claim 1 , wherein the computer device functions as a back-to-back user agent for the provider network that carries SIP telephone calls between a SIP network associated with the first toll-free telephone number and the local exchange carrier network associated with the second toll-free telephone number.

7. The method of claim 1 , wherein the SIP telephone call is received from a call center, and wherein the SIP telephone call is associated with another SIP telephone call between the call center and a user device associated with a customer of the call center.

8. The method of claim 1 , further comprising:
determining that the local exchange carrier network associated with the second toll-free telephone number requires an asserted identity header for telephone calls from the first toll-free telephone number to the second toll-free telephone number, based on information stored in the local exchange carrier network; and
generating an asserted identity header for the SIP telephone call that includes an access number associated with the first toll-free telephone number, in response determining that the local exchange carrier network associated with the second toll-free telephone number requires an asserted identity header for telephone calls from the first toll-free telephone number to the second toll-free telephone number.

9. A computer device comprising:
logic configured to:
receive a Session Initiation Protocol (SIP) telephone call;
identify the SIP telephone call as originating from a first toll-free telephone number and destined for a second toll-free telephone number;
determine a screened telephone number associated with the first toll-free telephone number, wherein the screened telephone number is assigned to the first toll-free telephone number by a provider network that carries SIP telephone calls between a SIP network associated with the first toll-free telephone number and a local exchange carrier network associated with the second toll-free telephone number;
generate a diversion header that includes the determined screened telephone number for the SIP telephone call, in response to identifying the SIP telephone call as originating from the first toll-free telephone number and destined for the second toll-free telephone number; and
send the SIP telephone call to the local exchange carrier network associated with the second toll-free telephone number.

10. The computer device of claim 9 , wherein the logic is further configured to:
receive an indication from the local exchange carrier network that the SIP telephone call was rejected by the local exchange carrier network;
generate an asserted identity header that includes an access number associated with the first toll-free telephone number, in response to receiving the indication that the SIP telephone call was rejected by the local exchange carrier network; and
re-send the SIP telephone call to the local exchange carrier network with the generated asserted identity header.

11. The computer device of claim 9 , wherein the computer device functions as a back-to-back user agent for a SIP network associated with the first toll-free telephone number.

12. The computer device of claim 11 , wherein the computer device includes at least one of:
an Internet Protocol Private Branch Exchange device;
a Session Border Controller device; or
a Session Initiation Protocol Application Server device.

13. The computer device of claim 9 , wherein the computer device functions as a back-to-back user agent for the provider network that carries SIP telephone calls between a SIP network associated with the first toll-free telephone number and the local exchange carrier network associated with the second toll-free telephone number.

14. The computer device of claim 9 , wherein the SIP telephone call is received from a call center, and wherein the SIP telephone call is associated with another SIP telephone call between the call center and a user device associated with a customer of the call center.

15. The computer device of claim 9 , wherein the logic is further configured to:
determine that the local exchange carrier network associated with the second toll-free telephone number requires an asserted identity header for telephone calls from the first toll-free telephone number to the second toll-free telephone number, based on information stored in the local exchange carrier network; and
generate an asserted identity header for the SIP telephone call that includes an access number associated with the first toll-free telephone number, in response determining that the local exchange carrier network associated with the second toll-free telephone number requires an asserted identity header for telephone calls from the first toll-free telephone number to the second toll-free telephone number.

16. A non-transitory computer-readable medium, storing instructions executable by one or more processors, the non-transitory computer-readable medium comprising:
one or more instructions to receive a Session Initiation Protocol (SIP) telephone call;
one or more instructions to identify the SIP telephone call as originating from a first toll-free telephone number and destined for a second toll-free telephone number;
one or more instructions to determine a screene

Assignees

• Verizon Patent & Licensing Inc

Inventors

• Lacroix Jeffrey

Classifications

• H04M15/08

  Metering calls to called party {, i.e. B-party charged for the communication} · CPC title

• H04M15/06

  Recording class or number of calling {, i.e. A-party} or called party {, i.e. B-party} · CPC title

• H04M7/0081

  Network operation, administration, maintenance, or provisioning · CPC title

• H04M15/63

  based on the content carried by the session initiation protocol [SIP] messages · CPC title

• H04M3/42042 Primary

  Notifying the called party of information on the calling party (details within substation equipment H04M1/57, signalling details H04Q3/72) · CPC title