Oddly i am unable to see the phone option.
Viewing post in From where you live v0.12 (vore game) comments
You do not start with the phone. Go to the pool in the morning, get eaten by Amy, have her leave the pool, talk to her about the shrink gun while still inside her, she will tell you about Amanda's shop. Struggle your way out of Amy, go to Amanda's shop, talk to Amanda, buy the phone from her. The phone partially appears on the bottom right of the screen when you are allowed to use it.