Jan 17 2011
I noticed recently that I’ve been accidentally calling my contacts when my phone has been locked and in my pocket, and I’ve found out why.
If the home button gets pressed for a couple of seconds it enters voice activation mode and it sometimes misinterprets background noise as names from your contact list and calls them, which can annoy your contacts and prove to be expensive. It could also let a thief call your contacts with out accessing your phone, even in you have a Passcode set.
To stop this from happen you will need to set a Passcode Lock and follow these instructions
1) Launch the Settings App
2) Select the General Option
3) Select the Passcode Lock Option
4) Select Turn Passcode On
5) Enter a 4 digit Passcode
You have now set a Passcode, this will also protect your phone against un-authorised access to your phone.
6) Set the Voice Dial option to Off.
7) Your iPhone now won’t try and make voice calls if the home button gets accidentally pressed, or someone tries to access your contacts using voice dialing