You need the cell phone from the Mountains of the Moon. Climb up and beat the old man at mancala to enter the cave.
You use the phone at Giza when you get the shovel from the tomb raiders. The number on the shovel is 555-6789. When you are brought to Vince (the head man) call the number to distract him. You can recover the Moonstone from his bag while he is looking for his phone.
Put the Moonstone in the ring above the Sphinx's head to open the tomb.
you call the number 555-6789
The Moonstone. It is in the knapsack that Vince has. If you call him on the cell phone, you can distract him and get it. (His number is on the shovel.)
His number is on the shovel (555-6789). Call him to distract him so you can grab his bag. (see related question)
You call Vince using the cell phone (his number is on the shovel, 555-6789). When he goes away, get the Moonstone from his backpack.
The leader of the tomb raiders is Vince Graves : his phone number is on the shovel. If you call him at 555-6789, he will be distracted and you can get into his bag. (see related question)
555-6789
you call the guy in Giza with the phone and the number that is on the shovel. Then you go to his backpack and get the moonstone, and you use it on top of the weird building/statue and it will open.
You need a cell phone. Call Vince at the number on the shovel (555-6789) and it will distract him. (see related question)
Call him on the cell phone (his number, 555-6789, is on your shovel). Then you can get the Moonstone from his knapsack. (see related question)
First fly from Nabooti to Giza which is at the very top of the map you get . Take out the phone and call this number. 555-6789. The director of the two guys standing in front of the maze will go into the tent to find is phone and the diggers will make a run for it.
You call the number on the shovel and a phone rings it is the boses phone when he walks away the other guys run away and your free to go in
You have to get the shovel and that is where you will find his number.