EPF Button: Like the teleport button, but this teleports you straight to the EPF Command Room (The button is at bottom of the EPF Phone).
Elite Puffle: If you have Herbert's Revenge, this allows you to call the Elite Puffle Flare. With an update, it is now for anyone who has a code for the DS game. Only the people who have the DS games can see the Elite Puffle icon on their phone though.
Field-Ops: This alerts you on any new Field-Ops, and it provides a quick reminder of what you have to do on current ones. This feature is removed after the upgrade on April 5, 2013, and was replaced with missions.
Recruit: This gives you information on how to make other Penguins join the EPF.
On April 5, 2013, all EPF Spy Phones were upgraded. They are thinner and bear less resemblance to any particular phone that exists in the real world. It was mentioned by Gary in February 2013, in an EPF message.
During the Prehistoric Party, if you travel back in time, you couldn't use it, since there is no signal available, so it disappears from the screen and it won't open if you try to access it from your Player Card.
On May 11 the Director of the E.P.F. sent a message to all penguins that said: All agents - upon completion of this weeks Field Op,please take some time to enjoy the Holiday party,and help out with Coins for Change.