# US 8,751,667 B2 · Supporting hands-free services via a hands-free device for IP video calls

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- Number: US 8,751,667 B2
- Document ID: US8751667B2
- Status: Granted
- Kind: B2
- Application number: 13/223,266
- Filed: 2011-08-31
- Published: 2012-03-01
- Granted: 2014-06-10
- Earliest claimed: 2010-04-07
- Assignees: Apple Inc.
- Applicants: Justin Santamaria; Justin Wood; Matthew Klahn
- Inventors: Justin Santamaria; Justin Wood; Matthew Klahn
- Web page: https://patentgrep.com/patent/US8751667B2

## CPC

- 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}
- H04L 61/256: NAT traversal
- H04L 65/1069: Session establishment or de-establishment
- H04L 65/1073: Registration or de-registration
- H04L 65/1083: In-session procedures
- H04L 65/1089: by adding media; by removing media
- H04L 65/1094: Inter-user-equipment sessions transfer or sharing
- H04L 65/1104: Session initiation protocol [SIP]
- H04L 65/403: Arrangements for multi-party communication, e.g. for conferences (data switching systems for conference H04L12/18; arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities H04M3/56; television conferencing systems H04N7/15)
- H04L 65/4061: Push-to services, e.g. push-to-talk or push-to-video
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Hands-free services for Internet Protocol (IP) video calls through a peered hands-free device can begin when an IP video call invitation request that requests the client computing device participate in a P2P (peer-to-peer) IP video call is received. A generic incoming call object is generated based on the IP video call invitation request in a format that can be common for both incoming audio only cellular calls and IP video call invitation requests. The hands-free device is alerted of the incoming call based on the incoming call object. Responsive to receiving an indication from the hands-free device that a user has indicated to answer the incoming call, an IP video call accept message is transmitted and a P2P connection is established for the P2P IP video call, and the hands-free device can act as an auditory relay during the P2P IP video call.

## Claims

### Claim 1

A method performed in a client computing device for providing hands-free services for Internet Protocol (IP) video calls through a hands-free device, comprising:
receiving an IP video call invitation request that requests the client computing device participate in a P2P (peer-to-peer) IP video call;
generating a generic incoming call object based on the IP video call invitation request in a format that is common for both incoming audio only cellular calls and IP video call invitation requests, the incoming call object including a set of parameters regarding the incoming call, wherein the set of parameters regarding the call includes a status of the call, a call participant identifier, a start time, and a call identifier;
alerting the hands-free device of the incoming call based on the incoming call object;
responsive to receiving an indication from the hands-free device that a user has indicated to answer the incoming call, transmitting an IP video call accept message;
establishing a P2P connection for the P2P IP video call; and
routing an audio portion of the P2P IP video call through the hands-free device such that the hands free device acts as an auditory relay during the P2P IP video call, while displaying a portion of the video call on the client device.

### Claim 2 (depends on 1)

The method of claim 1, further comprising establishing an audio connection with the hands-free device after establishing the P2P connection for the P2P IP video call.

### Claim 3 (depends on 1)

The method of claim 1, wherein the hands-free device is a car-kit.

### Claim 4 (depends on 1)

The method of claim 1, further comprising routing the audio portion of the IP video call through the hands-free device responsive to receiving a command from the hands-free device to transfer the audio.

### Claim 5

A non-transitory machine-readable storage medium that provides instructions that, when executed by a processor, will cause the processor to perform operations for providing hands-free services for Internet Protocol (IP) video calls through a hands-free device, the operations comprising:
receiving an IP video call invitation request specific to the client computing device that requests the client computing device to participate in a P2P (peer-to-peer) IP video call;
generating a generic incoming call object based on the IP video call invitation request in a format that is common for both incoming audio only cellular calls and IP video call invitation requests, the incoming call object including a set of parameters regarding the incoming call, wherein the set of parameters regarding the call includes a status of the call, a call participant identifier, a start time, and a call identifier;
alerting the hands-free device of the incoming call based on the incoming call object;
responsive to receiving an indication from the hands-free device that a user has indicated to answer the incoming call, transmitting a device specific IP video call accept message;
establishing a P2P connection for the P2P IP video call; and
routing an audio portion of the P2P IP video call through the hands-free device such that the hands free device acts as an auditory relay during the P2P IP video call.

### Claim 6 (depends on 5)

The machine-readable storage medium claim 5, further comprising instructions to perform operations including establishing an audio connection with the hands-free device after establishing the P2P connection for the P2P IP video call.

### Claim 7 (depends on 5)

The machine-readable storage medium of claim 5, wherein the hands-free device is a car-kit.

### Claim 8 (depends on 5)

The machine-readable storage medium of claim 5, further comprising instructions to perform operations including routing the audio portion of the IP video call through the hands-free device responsive to receiving a command from the hands-free device to transfer the audio, while continuing to display a video portion of the video call on the client device.

### Claim 9

A client computing device, comprising:
a processor system including a system on an integrated circuit;
an internet protocol (IP) video call manager coupled to the processor system, to manage establishment of IP video calls and to generate and transmit a first call object, the first call object including a set of parameters regarding the IP video call;
a cellular call manager coupled to the processor system, to manage establishment of audio only cellular calls, and to generate and transmit a second call object, the second call object including a set of parameters regarding the audio only cellular call, wherein the first call object and second call object have a common format, and wherein the set of parameters regarding the IP video call and the set of parameters regarding the audio only cellular call each include a status of the call, a call participant identifier, a start time, and a call identifier;
a telephony manager coupled with the processing system, the IP video call manager and the cellular call manager to provide hands-free services via an external hands-free device for both IP video calls and audio only cellular calls on behalf of the IP video call manager and the cellular call manager, the hands-free services including: answer an incoming call via the external hands-free device, end a call via the external hands-free device, and initiate a call via the external hands-free device; and
a hands-free manager coupled to the telephony manager, to establish an audio connection with the hands-free device, wherein the hands-free manager sends a request to an audio manager to route an audio portion of the IP video call through the hands-free device while a video portion of the video call is displayed on the client device.

### Claim 10 (depends on 9)

The computing device of claim 9, wherein the external hands-free device is a car-kit.