The iPhone launched by Apple Inc. in 2007, is a multimedia and internet enabled mobile phone with the functions of a camera phone and iPod along with text messaging and visual voice mail. The iPhone even provides Internet services including e-mail, web browsing and local Wi-fi connectivity.The features provided by iPhone include conferencing, call holding, call merging, caller ID, and integration along with other cellular network features and iPhone functions. The functions of an iPhone even include visual voicemail that permits the users to view current voicemail messages on-screen needing no call into their voicemail. The customers were allowed to buy custom ringtones through the ring tone feature that was introduced on ...