Patent ID: 7912488

Claim:
In a communication system, a method comprising: receiving first audio data, which a first mobile telephone sent in response to a press-and-hold of a talk button of the first mobile telephone; sending a first portion of the first audio, which the first mobile telephone sent in response to the press-and-hold of the talk button of the first mobile telephone, to a second mobile telephone configured to receive and automatically play the first portion of the first audio as part of a half-duplex communication between the first and second mobile telephones; receiving second audio data, which the second mobile telephone sent in response to a press-and-hold of a talk button of the second mobile telephone; and as part of a full-duplex communication between the first and second mobile telephones: sending a second portion of the first audio, which the first mobile telephone sent in response to the press-and-hold of the talk button of the first mobile telephone, to the second mobile telephone, wherein the second mobile telephone is configured to receive and automatically play the second portion of the first audio as part of the full-duplex communication between the first and second mobile telephones; and while sending the second portion of the first audio to the second mobile telephone, sending the second audio, which the second mobile telephone sent in response to the press-and-hold of the talk button of the second mobile telephone, to the first mobile telephone, wherein the first mobile telephone is configured to receive and automatically play the second audio as part of the full-duplex communication between the first and second mobile telephones.