G a devise installed in a cellular telephone that generates a constant low tone, which sounds like a traditional land line dial tone, as an audible indicator that a call may be made or received; The devise generates an audible indicator that is in addition to or instead of a visual indicator of signal strenght; S on a cellular phone: a tone (equavalent to a dial tone on a traditional land line phone) indicating that the RF signal strenght from the base station is adequate for a call to be made or received; G a devise installed in a cellular telephone that generates a constant low tone, which sounds like a traditional land line dial tone, as an audible indicator that a call may be made or received; The devise generates an audible indicator that is in addition to or instead of a visual indicator of signal strenght; S on a cellular phone: a tone (equavalent to a dial tone on a traditional land line phone) indicating that the RF signal strenght from the base station is adequate for a call to be made or received