Abstract: In a system for checking performance quality of mobile telephony networks, specific electronic devices (15, 15?) are connected to digital data transmission lines (13, 13?, 14, 14?) between base stations controllers (11, 11?) and base transmitting stations (12, 12?) dedicated to peripheral areas, or cells, such devices being apt to acquisition of data transmitted onto said lines and to process said data for identification of specific network operating parameters and for correlation of said parameter between them. The above electronic devices are also connected to central processing units (30) where the above processed data are periodically transmitted to for later searching and processing according to design and network maintenance requirements, or any other requirement of users connected by means of remote terminals (31) to said central units.

Abstract: In a system for checking performance quality of mobile telephony networks, specific electronic devices (15, 15′) are connected to digital data transmission lines (13, 13′, 14, 14′) between base stations controllers (11, 11′) and base transmitting stations (12, 12′) dedicated to peripheral areas, or cells, such devices being apt to acquisition of data transmitted onto said lines and to process said data for identification of specific network operating parameters and for correlation of said parameter between them. The above electronic devices are also connected to central processing units (30) where the above processed data are periodically transmitted to for later searching and processing according to design and network maintenance requirements, or any other requirement of users connected by means of remote terminals (31) to said central units.

Abstract: An apparatus, and corresponding method, for verifying the procedure to access mobile telephony networks through SIM cards provides that said cards are stably placed in a single central electronic unit which, upon verification requests carried on by various phone service suppliers from remote terminals, is apt to read the parameters of the peripheral devices placed at the mobile telephony network area locations that are requested to be tested; in this way said devices act, in the various tests, as mobile telephones containing the specific SIM cards involved in the verifications. Data relating to verifications as well as said parameters are transmitted between peripheral devices and central electronic unit through dedicated digital transmission lines or through the telephony network itself.