Tip 21 - Simpler domain entry
If you're entering a .com domain name into the web address box in Safari you don't actually have to add the http://www bit at the start or the .com at the end. Just type in the core name and hit Go - the iPhone will add the rest for you.
Tip 22 - Clearing stored search terms
The iPhone automatically keeps a list of terms you've searched for in Safari so it can suggest them again the next time you go to enter a similar term. However, there are times when you'll want to clear this. The quickest way to do this is to tap on the Bookmarks button, select History and then press the Clear button at the bottom of the screen.
Tip 23 - View hyperlinks
Not sure where a hyperlink is going to take you? You can find out the full address of the link by pressing and holding your finger on the link. A pop-up box will show you the full URL of the link that you've selected.
Tip 24 - How to scroll in frames
Thankfully, web pages built using scrollable frames are dying off. However, if you do happen to come across one on your iPhone you may be pretty stumped as to how to just scroll a frame of the site and not the whole site. The trick is to use two fingers to scroll within the frame and one finger to scroll around the whole site. This trick can also work when viewing PDF files on a website.
Tip 25 - Send a call to voicemail
If you're in a situation where you can't answer a call, just send it to voicemail. There are two ways to do this. You can simply double press the standby button on the top of the iPhone, or alternatively if you're using the headset, just press and hold in the microphone button for two seconds. Two low beeps will confirm that the call was declined.