8 Comments. 1  Good article and beautiful snake pictures. 2  Thereâs the coral snake and its non-venomous look-alike, the king snake. 3  Hog nose snakes (puff adders) meet pretty much all of these traits listed but are not considered venomous (to humans).
Buzzer or Ringer. When the radio components of the handset receive the ringer signal from the base, they send electrical signals to the buzzer. The buzzer changes those electrical signals into sound much like the speaker does. You hear the buzzer sound and know that someone is calling you.
When someone tries to call you, the tower sends your phone a message over the control channel that tells your phone to play its ringtone. The tower also gives your phone a pair of voice channel frequencies to use for the call. The control channel also provides the pathway for SMS messages.