Patent ID: 7343151

Claim:
A cellular phone device capable of receiving/transmitting an e-mail comprising: first means for judging whether or not the e-mail received includes a predetermined e-mail allotted to an inquiry concerned with a state of the cellular phone and second means for automatically transmitting a state response e-mail indicative of the state of the cellular phone device when the predetermined e-mail is received, wherein said second means generates time period information that identifies a time period for placement of an in-bound telephone call to said cellular phone device and includes said time period information in said state response e-mail in response to said predetermined e-mail; further comprising: out-bound call query transmitting means for transmitting a second predetermined e-mail to another cellular phone device prior to initiation of an out-bound telephone call to said another cellular phone device: and out-bound call query receiving means for receiving a second state response e-mail from said another cellular Phone device that is sent in response to said second predetermined e-mail.