second cassette tape 604 a second magnetic head 502 for receiving the signal from tape 604 the first amplifying transistors 503 504 the final amplifying transistors 505 506 and an output transformer 507 coupled to the connecting means 7 pulse dialing means 6 comprises a resistor 601 connected to the power source a resistor 602 connected to resistor 601 an infrared emitting diode 603 a second cassette tape 604 movably inserted between diode 603 and a photo transistor 605 a photo transistor 605 receiving the light emission from diode 603 an amplifying transistor 606 and a reed switch 607 having contacts 608 for coupling output transformer 507 to telephone lines l1 l2 in fig3 typical telephone dialing pulses are shown in that the period t of each dialing pulse is 100 milliseconds the duration t1 of each break pulse being 662 3 milliseconds the duration t2 of each make pulse being 331 3 milliseconds and the rest time interval t3 being set from 400 to 500 milli seconds to utilize the principles of fig3 on the second cassette tape 604 the cassette tape 604 is formed as shown in fig4 wherein tape 604 is formed with a transparent end 604a and the tape runs with a constant speed of 4 75 centimeters per second within the transparent portion 604a several opaque zones 604b are formed adapted for calling or emergency telephone number if 34 110.