These are instructions on how to replace the signal strength bars on your iPhone with a numerical representation of reception strength. (ie. numbers instead of bars). Press to launch MobilePhone from your Springboard. Tap the keyboard tab then dial *3001#12345#*.
The Suez Canal is in Egypt. It connects the Gulf of Suez with the Mediterranean Sea. There are three main cities along the canal: Suez, Ismailia, and Port Saeed/Said. The Suez Canal joins the Gulf of Suez to the Mediterranean Sea, running generally north-south, and passing roughly 80 miles east of Cairo at its closest.
The world's longest canal is the Grand Canal, which is located in  China. This canal is 1,115 miles long and is a popular tourist  spot.