Lara Barnett May 11, 2021:

@ Penny Could this reference to telephone be talking about radio signals maybe? So that signals are sent between the companies main server or network and the home or business owner's alarm system?

pennylyd (asker) May 10, 2021:

Some more context for you. This is from the initial page of the contract detailing which services are to be supplied;
il canone mensile anticipato di €...
con decorrenza contrattuale dal...
per servizi di: LU Vigilanza Notturna
Vigilanza Elettronica con collegamento monodirezionale
Vigilanza Elettronica con collegamento bidirezionale
Vigilanza Elettronica con collegamento bidirezionale GSM
Addebito semestrale in fattura del traffico telefonico
che l’istituto di........... effettuerà efficacemente ai locali siti a......

Lara Barnett May 10, 2021:

@ Penny Can you provide further context to these two lines? And which part of the contract is this?