Patent ID: 6917806

Claim:
A mobile radio communication system which, in addition to providing services of a telephone conversation and exchange of a stored message between a plurality of mobile radio communication terminals, can provide said exchange of the stored message between external terminals connected via a computer network and said mobile radio communication terminals, wherein said mobile radio communication system comprises: group registration means, which stores at least one destination group having a plurality of first destination information each corresponding to one of said mobile radio communication terminals or said external terminals, and a second destination information corresponding to the plurality of first destination information; destination information determining means, which compares the destination information of the stored message received from said mobile radio communication terminals or said external terminals with said second destination information to determine whether there is any destination group satisfying a predetermined condition in said destination groups or not; and broadcasting means for, in the case where there is a destination group satisfying said predetermined condition, sending said stored message to all of said mobile radio communication terminals and/or said external terminals corresponding to any of the said first destination information included in the destination group.