Directions: First you are going to want to take the small felt circle and cut a circle in the middle of it (to do this I just folded it in half and cut a half circle). Then you are going to want to take a hole punch and make 10 holes around the circle, spacing them so that it looks like the old fashioned phone dial. Here's a fun picture of one for reference:
Now you are going to want to sew the phone base to the muslin book page (I applied the snaps very last- so they went through the felt and the muslin- I did this to make them a bit sturdier, and to make it easier so I didn't have to sew around the snaps when sewing the base to the page). Place the phone base where you want it on the page and sew it around the age. Leave a little opening at the bottom side of the phone where you can stick the other end of the coily shoelace/phone cord in. Reinforce the stitch where you are tucking in the phone cord to make it really sturdy (that phone cord will get stretched!). The last thing to do is apply the bottom halves of the snaps to the 2 little protruding things (I don't know what to call these!) on the phone base. Make sure they line up with the snaps you've sewn on the handset.
You can also sew on a text box if you want at the top of the page introducing the phone! Mine reads "Make a phone call!". Another idea for this page is to make it look like a cell phone (since phones like this one aren't really around anymore- but then of course you miss out on the fun little coily phone cord which in my opinion is one of the highlights of this page).
Here's a picture of where I got my inspiration- good ol' Alice's (my mom's) quiet book:And here's a link to a sketch she made (way back in the 70's) when she was creating her quiet book. Feel free to enlarge it/print it off and use it as a template: