Talking between the phones (intercom), To talk from the handset to the base phone, To talk from the base phone to the handset – Sony SPP-SS955 User Manual
Page 21: When you are done talking, If no one answers the phone
Talking between the phones (intercom), To talk from the handset to the base phone, To talk from the base phone to the handset | When you are done talking, If no one answers the phone | Sony SPP-SS955 User Manual | Page 21 / 61