Portable terminal device, incoming call screen display method, and program

An incoming call screen display method, comprising:

• receiving an incoming call signal including a caller number, caller information, and ring type information when an incoming telephone call is received from a nurse call extension unit in a nurse call system;
• generating caller text information based on at least one of the caller information and the ring type information included in the incoming call signal;
• and
• displaying an incoming call screen including the caller text information with a background color in accordance with the ring type information.

A non-transitory computer readable medium storing a program causing a processor to execute:

• receiving an incoming call signal including a caller number, caller information, and ring type information when an incoming telephone call is received from a nurse call extension unit in a nurse call system;
• generating caller text information based on at least one of the caller information and the ring type information included in the incoming call signal;
• and
• causing a frame work, to display an incoming call screen, which is configured to display the incoming call screen including the caller text information with a background color in accordance with the ring type information.