There is one put the phone number "911" in and you will have cop clothes!!!
if you use the phone you got from nabooti island and write any code like 411, you can a surprise!!
You get it when you are in the cave of mountains of the moon
you play Mancala
411,911,111,211,611,511,811,011,000,544,1112,212,122.
911
When you have the cell phone on Nabooti Island, dial 1225 and you will get a removable ELF hat and a bag of toys. (see related question)
its in the bottom in one of the caves on nabooti island
5556789
You have to dial 5556789
911 , 411
555-6789
you call the number 555-6789