System for providing high-efficiency push-to-talk communication service to large groups over large areas

A communication device to communicate with a receiving device, comprising:

• a speech-to-text converter to convert a first audio utterance into a text based message;
• and
• a transmitter to transmit, via a text delivery optimized communication network, said text based message;
• wherein said text based message is transmitted, via a broadcast optimized communication network, to at least one receiving device to convert said text based message into a second audio utterance.

A method of providing a communication to a receiving device, comprising:

• receiving, via a broadcast optimized communication network, a text based message;
• converting said text based message into a second audio utterance;
• and
• wherein said text based message is transmitted, via a text delivery optimized communication network, from a transmitting device converting a first audio utterance into said text based message.

A communication device, comprising:

• a receiver to receive, via a broadcast optimized communication network, a text based message;
• and
• a text-to-speech converter to convert said text based message into a second audio utterance;
• wherein said text based message is transmitted, via a text delivery optimized communication network, from a transmitting device converting a first audio utterance into said text based message.

A communication server, comprising:

• an input handler to receive, via a text delivery optimized communication network, a text based message;
• a subroutine, at said communication server, to identify a destination parameter associated with said text based message;
• and
• an output handler at said communication server to transmit, via a broadcast optimized communication network, said text based message to at least one receiving device based on said destination parameter;
• wherein said at least one receiving device converts said text based message into an audio utterance.