US 12,745,321 B2Granted

Methods and systems for switching push-to-talk mode to voice over IP

AssigneeT-Mobile USA, Inc.

InventorsJagannadha Anudeep Datla, Harikishore Allu Balan

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Abstract

Methods and systems for switching a push-to-talk (PTT) session to a voice over IP session are described herein. In one implementation, a device configured to support PTT service may receive an interaction performed by a user with the device. The device then transmits a request to establish a PTT session with a second user to a PTT server connected to an evolved packet core (EPC) network. Once the PTT session is established, the PTT server may monitor the real-time audio quality of the PTT session. When the audio quality is determined to be low, the PTT server may send a notification to the device to switch the PTT session to a two-way audio session (e.g., voice over IP). Upon receiving the user's confirmation, the device may send a session initiation protocol (SIP) invite to an IP multimedia subsystem (IMS) to establish the voice over IP session.

Claims20

Dependent claims

A device comprising:

a processor;
and
a non-transitory computer-readable memory storing computer-executable instructions that, when executed by the processor, cause the processor to:
receive an interaction performed by a user with the device, the interaction generating a request to establish a push-to-talk session with a second user;
in response to the interaction, transmit, to a server associated with push-to-talk service, the request;
receive, from the server, a response indicating the push-to-talk session being established between the device and a second device associated with the second user;
receive, from the server, a notification providing an option to switch the push-to-talk session to a two-way audio session, the notification being generated by the server based on a Mean Opinion Score (MOS) code value associated with an audio quality associated with the push-to-talk session being below a threshold;
cause, on the device, the notification to be presented to the user including a selectable element for the user to confirm the switch;
receive, via the selectable element, a confirmation from the user to switch the push-to-talk session to the two-way audio session;
and
in response to the confirmation, transmit, to a second server associated with an Internet Protocol Multimedia Subsystem (IMS), a Session Initiation Protocol (SIP) invite message to establish the two-way audio session between the device and the second device.

8 more elements

A method implemented by a device, the method comprising:

receiving an interaction performed by a user with the device, the interaction generating a request to establish a push-to-talk session with a second user;
in response to the interaction, transmitting, to a server associated with push-to-talk service, the request;
receiving, from the server, a response indicating the push-to-talk session being established between the device and a second device associated with the second user;
receiving, from the server, a notification providing an option to switch the push-to-talk session to a two-way audio session, the notification being generated by the server based on a Mean Opinion Score (MOS) code value associated with an audio quality associated with the push-to-talk session being below a threshold;
causing, on the device, the notification to be presented to the user including a selectable element for the user to confirm the switch;
receiving, via the selectable element, a confirmation from the user to switch the push-to-talk session to the two-way audio session;
and
in response to the confirmation, transmitting, to a second server associated with an Internet Protocol Multimedia Subsystem (IMS), a Session Initiation Protocol (SIP) invite message to establish the two-way audio session between the device and the second device.

5 more elements

A computer-readable storage medium storing computer-readable instructions, when executed by a processor, cause the processor to perform operations including:

receiving an interaction performed by a user with a device, the interaction generating a request to establish a push-to-talk session with a second user;
in response to the interaction, transmitting, to a server associated with push-to-talk service, the request;
receiving, from the server, a response indicating the push-to-talk session being established between the device and a second device associated with the second user;
receiving, from the server, a notification providing an option to switch the push-to-talk session to a two-way audio session, the notification being generated by the server based on a Mean Opinion Score (MOS) code value associated with an audio quality associated with the push-to-talk session being below a threshold;
causing, on the device, the notification to be presented to the user including a selectable element for the user to confirm the switch;
receiving, via the selectable element, a confirmation from the user to switch the push-to-talk session to the two-way audio session;
and
in response to the confirmation, transmitting, to a second server associated with an Internet Protocol Multimedia Subsystem (IMS), a Session Initiation Protocol (SIP) invite message to establish the two-way audio session between the device and the second device.

5 more elements

Dependencies are inferred from the claim text.