FYI: Use WASD to move and hold SPACE to sprint.
Took me a while to figure out that the location of the telephone and the levels are randomised. Every so often I was thrown in to a white void, I swear there was no to get out and pick up the phone.
Overall, I enjoyed this silly little game. Best walking animation evarrr! Art style is so MS paint it becomes quite endearing.
Definitely needs music (could literally just be a drum loop) and some more sound FX. Adding a ring to the telephone and making it location based would unlock this game a lot. Wouldn't be surprised if devs already had this in the pipeline.