Embodiments of interruption-sound devices for producing an interruption
sound signal in a telecommunications transmission signal comprising a
signal generator circuit and a processor circuit, in accordance with the
present invention. The interruption sound signals are input into the
appropriate location of the telecommunications device such that the
interruptee perceives characteristic sounds such as those encountered
when a mobile phone is about to drop a call. As a result, the interruptee
will place blame for call disconnection on the mobile-phone technology
and not on the interruptor. The interruption-sound device is suitable for
incorporated into an external interruption module, a landline phone, and
a mobile phone.