John R Gammino, Age 815067 Monroe Cir, Vero Beach, FL 32967

5809125, Sep 15, 1998

Jan 25, 1994

8/186820

John R. Gammino - Lincroft NJ

H04M 338

379189

Potentially fraudulent telephone calls are intercepted from public telephones. As the digits which correspond to a telephone number are entered into a telecommunications device, each number at a particular location is compared with a predetermined number. If, according to this comparison, telephone numbers which include certain digits at particular locations in the dialing sequence are entered, the telephone call is blocked. This technique may be implemented by including appropriate software into a microprocessor controlled public telephone. For public telephones which are not microprocessor controlled, a microprocessor driven system can be interposed between the public telephone and the telecommunications line. A similar algorithm can be implemented in conjunction with a PBX system. When a PBX system is being accessed from a public telephone in order to establish a telephone call using the PBX outgoing lines, the telephone numbers which are entered into the PBX can be compared with predetermined number sequences in the manner described above.

5359643, Oct 25, 1994

Jan 26, 1993

8/009318

John R. Gammino - Lincroft NJ

H04M 1700

379143

A telephone call is conveniently placed between a telecommunications device and a central office. A first plurality of signals representing a telephone dialing digit not including "0", followed by a multiple-digit phone number, is received. At least one signal which indicates a desired method of making payment for the telephone call is then received. Arrangements are made for payment of the telephone call according to the desired method of payment. The telephone call is then placed by transmitting a second plurality of signals representing the multiple-digit phone number to the central office.

5812650, Sep 22, 1998

Feb 23, 1994

8/200945

John R. Gammino - Lincroft NJ

H04M 338

379189

Potentially fraudulent telephone calls are intercepted from public telephones. As the digits which correspond to a telephone number are entered into a telecommunications device, each number at a particular location is compared with a predetermined number. If, according to this comparison, telephone numbers which include certain digits at particular locations in the dialing sequence are entered, the telephone call is blocked. This technique may be implemented by including appropriate software into a microprocessor controlled public telephone. For public telephones which are not microprocessor controlled, a microprocessor driven system can be interposed between the public telephone and the telecommunications line. A similar algorithm can be implemented in conjunction with a PBX system. When a PBX system is being accessed from a public telephone in order to establish a telephone call using the PBX outgoing lines, the telephone numbers which are entered into the PBX can be compared with predetermined number sequences in the manner described above.