COMMUNICATION PATH ESTABLISHMENT METHOD

PROBLEM TO BE SOLVED: To provide a communication path establishment method that can automatically establish a communication path to an opposite phone even when the communication path cannot be established because a timing of hooking on the opposite phone is earlier than off-hook timing of its own phone. SOLUTION: The communication path establishment method includes a step S1 of whether or not a time difference between the timing of hooking on the opposite phone and the off-hook timing of its own phone slower than the on- hook timing is shorter than a setting time and a step S2 of discriminating the presence of a caller number as caller number discrimination when the step S1 discriminates that the time difference is shorter than the setting time. When the step S2 discriminates the presence of the caller number, dialing processing is automatically applied to the caller number, and when the step S1 discriminates that the time difference is longer than the setting time or the step S2 discriminates absence of caller number, ordinary dialing processing is conducted.