摘要 |
A geographic zone base (ZB) radio voice/text chat group communication system where users register to become subscribers of the communication system and join various zone based chat groups to become members of such groups. Any member can broadcast to all listening members of the chat group who, along with the member, are physically located within the geographic zone defined for the chat group. A chat group is created by a subscriber or by the communication system that operates and manages the chat groups. The communication system, in managing the chat groups, is coupled to a communication network (e.g., a cellular communication network) via the Internet and allow users of the cellular communication network to become members and participate in the ZB radio chat groups through the use of their cellular phones to transmit messages to the communication system via the Internet for broadcasting to their respective chat groups. |