The telephone or phone is a telecommunications device which is used to transmit and receive sound (most commonly voice and speech) across distance.
The circuit below show simple circuit of the Telephonelamp 1700 W.
Figure1 Schematic of Telephonelamp 1700W
Figure 2 Completed Circuit of Telephonelamp 1700W
Figure 2 Show Completed circuit The Telephonelamp 1700W and Applied
Data sheet :
The MOC3021 Series consists of gallium arsenide infrared emitting diodes,optically coupled to a silicon bilateral switch.
Telephonelamp 1700W 
