Abstract: In a portable communication device, such as a cellular phone, an identification data signal which includes both a directory number and a mail number of the other party is automatically registered in a memory of the portable communication device during a pause period in conversation. Both a bearer's directory number and mail address are automatically also transmitted to the other party during the pause period. This dispenses with manual complex operation for registering the directory number and the mail address in each portable communication device.

Abstract: In a portable communication device, such as a cellular phone, an identification data signal which includes both a directory number and a mail number of the other party is automatically registered in a memory of the portable communication device during a pause period in conversation. Both a bearer's directory number and mail address are automatically also transmitted to the other party during the pause period. This dispenses with manual complex operation for registering the directory number and the mail address in each portable communication device.

Abstract: A mobile telephone is composed of an antenna, a sending/receiving section, an automatic response control section, a memory, a key input section, a dial locking control section, a control section, a speech recognition section, a timer, a display section, a speech input section, a counter and a speaker. A character code from the key input section is stored in the memory. The control section determines if an aural signal is coincident with the character code stored in the memory. If there is coincidence, dial locking is set by the dial locking control section.