In the cellular telephone having recognized the entry of the numeric string and the pressing of the predetermined function key, a database is searched by using as a key {HEAD ~ the entered numeric string} or a character string obtained by {TAIL ~ character conversion} of the entered numeric string in accordance with the above mentioned assignment relationship, and e mail destination candidates associated with the numeric string or the character string are extracted and displayed on a display 
In the cellular telephone having recognized the entry of the numeric string and the pressing of the predetermined function key , a database is searched by using as a key { HEAD ~ the entered numeric string } or a character string obtained by { TAIL ~ character conversion } of the entered numeric string in accordance with the above mentioned assignment relationship , and e mail destination candidates associated with the numeric string or the character string are extracted and displayed on a display
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH