Abstract: Wireless-conferencing radios communicate directly with each other without a base station using a multiple access protocol, such as Time Division Multiple Access (TDMA). First data and second data packets are received. The data packets include preambles and bodies. Code in the preambles of the data packets identifies portions of data in the data packets as voice data and portions of data in the data packets as non-voice data. The voice data in the data packets can be combined to create combined voice data that excludes the non-voice data.

Abstract: Wireless-conferencing radios communicate directly with each other without a base station using a multiple access protocol, such as Time Division Multiple Access (TDMA).

Abstract: A first radio has duplex communication with a second radio, without using a base station by using a multiple-access protocol system. The first radio is configured to perform as a slave radio and then switch to be a master radio based on a master flag. A master radio provides timing synchronization and/or assigns transmission slots for radios in the multiple-access protocol system.

Abstract: Wireless-conferencing radios communicate directly with each other without a bases station using a multiple access protocol, such as Time Division Multiple Access (TDMA). Wireless-conferencing radios can be formed into groups and larger mesh networks.

Abstract: A wireless-conferencing system enables two or more radios to communicate with each other in full-duplex communication, such as by using time division multiple access (TDMA). To use the wireless-conferencing system in a narrowband radio service system, such as GMRS having channel spacing of 25 kHz, one or more techniques are used to implement the wireless-conferencing system.

Abstract: A first radio has duplex communication with a second radio, without using a base station by using a multiple-access protocol system. The first radio is configured to perform as a slave radio and then switch to be a master radio based on a master flag.

Abstract: A first wireless-conferencing radio and a second wireless-conferencing radio communicate directly with each other. After a connection is lost, the first radio automatically dials a phone number to the second radio and the first radio connects with the second radio using a cell tower.

Abstract: A first radio has duplex communication with a second radio and a third radio, without using a base station by using a multiple-access protocol system. The first radio is configured to perform as a master radio and then switch to be a slave radio. A master radio provides timing synchronization and/or assigns transmission slots for radios in the multiple-access protocol system.

Abstract: A first wireless-conferencing radio and a second wireless-conferencing radio communicate directly with each other. After a connection is lost, the first radio automatically dials a phone number to the second radio and the first radio connects with the second radio using a cell tower.

Abstract: A first radio has duplex communication with a second radio and a third radio, without using a base station by using a multiple-access protocol system. The first radio is configured to perform as a master radio and then switch to be a slave radio. A master radio provides timing synchronization and/or assigns transmission slots for radios in the multiple-access protocol system.

Abstract: A multivoice radio system allows users to speak and listen, at the same time, to others using multivoice radios without using a base station. Several embodiments of the present invention are directed toward combining a multivoice radio with push-to-talk (PTT), long-range radio. Other embodiments combine two or more multivoice systems and/or use an extender to increase a distance that multivoice radios can communicate with each other. Combining multivoice systems, in some embodiments, creates a voice and/or data mesh network. Switch-to-talk (STT) functionality can be added to systems to increase a number of users and promote radio discipline. Additionally, a combined in-ear microphone and speaker is disclosed. Further embodiments are directed to combining duplex radios, such as mobile phones, to multivoice systems, and/or PTT systems.

Abstract: Wireless-conferencing radios communicate directly with each other without a bases station using a multiple access protocol, such as Time Division Multiple Access (TDMA). Wireless-conferencing radios can be formed into groups and larger mesh networks. Some groups of wireless-conferencing radios use frequencies in a cellular band to communicate.

Abstract: Wireless-conferencing radios communicate directly with each other without a bases station using a multiple access protocol, such as Time Division Multiple Access (TDMA). Wireless-conferencing radios can be formed into groups and larger mesh networks. Some groups of wireless-conferencing radios use frequencies in a cellular band to communicate.

Abstract: A first radio has duplex communication with a second radio and a third radio, without using a base station by using a multiple-access protocol system. The first radio is configured to switch back and forth between being a master radio and a slave radio in the multiple-access protocol system. In some embodiments, time-division multiplexing is used as the multiple-access protocol system for the first radio, the second radio, and the third radio to communicate. In some embodiments, the master radio provides timing synchronization and/or assigns transmission slots for radios in the multiple-access protocol system.

Abstract: A wireless-conferencing system enables two or more radios to communicate with each other in full-duplex communication, such as by using time division multiple access (TDMA). To use the wireless-conferencing system in a narrowband radio service system, such as GMRS having channel spacing of 25 kHz, one or more techniques are used to implement the wireless-conferencing system.

Abstract: Wireless-conferencing radios communicate directly with each other without a bases station using a multiple access protocol, such as Time Division Multiple Access (TDMA). Wireless-conferencing radios can be formed into groups and larger mesh networks. Some groups of wireless-conferencing radios use frequencies in a cellular band to communicate.

Abstract: Wireless-conferencing radios communicate directly with each other without a bases station using a multiple access protocol, such as Time Division Multiple Access (TDMA). Wireless-conferencing radios can be formed into groups and larger mesh networks. Some groups of wireless-conferencing radios use frequencies in a cellular band to communicate.

Abstract: A first radio has duplex communication with a second radio and a third radio, without using a base station by using a multiple-access protocol system. The first radio is configured to switch back and forth between being a master radio and a slave radio in the multiple-access protocol system. In some embodiments, time-division multiplexing is used as the multiple-access protocol system for the first radio, the second radio, and the third radio to communicate. In some embodiments, the master radio provides timing synchronization and/or assigns transmission slots for radios in the multiple-access protocol system.

Abstract: A first radio has duplex communication with a second radio and a third radio, without using a base station by using a multiple-access protocol system. The first radio is configured to switch back and forth between being a master radio and a slave radio in the multiple-access protocol system. In some embodiments, time-division multiplexing is used as the multiple-access protocol system for the first radio, the second radio, and the third radio to communicate. In some embodiments, the master radio provides timing synchronization and/or assigns transmission slots for radios in the multiple-access protocol system.

Abstract: A multivoice radio system allows users to speak and listen, at the same time, to others using multivoice radios without using a base station. Several embodiments of the present invention are directed toward combining a multivoice radio with push-to-talk (PTT), long-range radio. Other embodiments combine two or more multivoice systems and/or use an extender to increase a distance that multivoice radios can communicate with each other. Combining multivoice systems, in some embodiments, creates a voice and/or data mesh network. Switch-to-talk (STT) functionality can be added to systems to increase a number of users and promote radio discipline. Additionally, a combined in-ear microphone and speaker is disclosed. Further embodiments are directed to combining duplex radios, such as mobile phones, to multivoice systems, and/or PTT systems.