Methods, devices, and systems for mobile device operations during telephone calls

A method at a mobile device associated with a first user, the method comprising:

• determining, by a mobile device having at least one processor and memory, and during an ongoing call with a second user, a call context associated with the ongoing call, determining the call context associated with the ongoing call including:
• converting, by the mobile device via a speech-to-text conversion component on the mobile device, call audio of the ongoing call to text;
• and
• processing, by the mobile device via a natural language processing component on the mobile device, the text from the converted call audio to detect one or more keywords indicating the call context of the ongoing call;
• determining, by the mobile device and based on the call context, whether the ongoing call is related to a payment;
• responsive to determining, based on the call context, that the ongoing call is related to a payment:
• determining, by the mobile device and based on the call context, a first user interface including a first plurality of virtual keyboard buttons to display on a display screen associated with the mobile device, the first plurality of virtual keyboard buttons including a payment button;
• displaying, by the mobile device and during the ongoing call, the determined first user interface including the first plurality of virtual keyboard buttons;
• determining, by the mobile device, a user input, received via the payment button of the first plurality of virtual keyboard buttons, to process a payment transaction;
• sending, by the mobile device and to a payment server, a transaction request to process the payment transaction;
• responsive to determining, based on the call context, that the ongoing call is not related to a payment:
• determining, by the mobile device, a second user interface, the second user interface including a second plurality of virtual keyboard buttons that does not include the payment button;
• and
• displaying, by the mobile device and during the ongoing call, the second user interface including the second plurality of virtual keyboard buttons.

An apparatus comprising:

• at least one processor;
• a communication interface communicatively coupled to the at least one processor;
• and
• a memory storing computer-readable instructions that, when executed by the at least one processor, cause the apparatus to:
• determine, during an ongoing call with a user, a call context associated with the ongoing call, determining the call context associated with the ongoing call including:
• converting, via a speech-to-text conversion component on the apparatus, call audio of the ongoing call to text;
• and
• processing, via a natural language processing component on the apparatus, the text from the converted call audio to detect one or more keywords indicating the call context of the ongoing call;
• determine, based on the call context, whether the ongoing call is related to a payment;
• responsive to determining, based on the call context, that the ongoing call is related to a payment:
• determine, based on the call context, a first user interface including a first plurality of virtual keyboard buttons to display on a display screen associated with the apparatus, the first plurality of virtual keyboard buttons including a payment button;
• display, during the ongoing call, the determined first user interface including the first plurality of virtual keyboard buttons;
• determine a user input, received via the payment button of the first plurality of virtual keyboard buttons, to process a payment transaction;
• send, via the communication interface to a payment server, a transaction request to process the payment transaction;
• responsive to determining, based on the call context, that the ongoing call is not related to a payment:
• determine a second user interface, the second user interface including a second plurality of virtual keyboard buttons that does not include the payment button;
• and
• display, during the ongoing call, the second user interface including the second plurality of virtual keyboard buttons.