Nope, it's not a sketch of a telephone at all. In fact, ceci n'est pas un téléphone!
This is from a game... remember playing "telephone" at all as a kid? Everyone would sit in a circle and whisper something one to another and then whatever the last person heard was not what was originally said and usually really funny. Well, you do this with paper. One person writes a sentence and then the next person draws their interpretation and the person after that writes a sentence based on the picture... and so it goes that way until the circle is completed. Here is my sentence and what I ended up with. No drawings my me!
Snoop dog ends up as... trippin' Jesus somehow. Maybe he is.