While looking for a safer alternative, I came across a service from AT&T called You can carry on a conversation through a Bluetooth device after you’ve started a call, but that’s not the same. To make a call, you have to launch the app if it’s not already running, wait at least a few seconds until it’s ready, and then tap or press and hold a button if the app requires it-that’s too much to do safely while you’re behind the wheel, and it’s against the law in some states. Thanks to limitations in Apple’s iPhone software for developers, none of them fully support add-on Bluetooth headsets or car kits. If you’re expecting voice dialers to let you make hands-free calls while you’re driving, you’ll be disappointed. That probably explains the widely varying opinions that you’ll find in voice dialer reviews posted in the App Store. As someone who spends much of my time working with speech recognition systems, I’ve found that the results are often quirky, sometimes varying even from minute to minute. Noisy environments like the inside of a car or a busy office are especially challenging. Recognition accuracy depends on a host of factors, including ambient noise, how clearly you speak, and the name of the person you’re calling. VoiceBox Technologies’ VoiceBox Dialer) also recognize spoken phone numbers. If you don’t know the name of the person you’re trying to call, three of the programs (Fonix iSpeak, Say Who Pro Dialer & Maps from Voice Vote: Fonix iSpeak is a good choice for a voice-activated dialing app, as it’s pretty accurate and can be used without looking at the iPhone’s screen.None of the other apps require any training, and all of them let you dial contacts who have more than one phone number by saying which one you want (“call Steve Jobs at home” or “call Bill Gates mobile”). ’s VoiceDial forces you to record the name of every person that you want to dial in advance-the app is not practical if you have more than a handful of contacts. Voice dialers work by comparing your voice to the names of contacts in your iPhone’s address book, but only Like iSpeak, Vocalia from Creaceed doesn’t require any action before you issue commands, but it quits when you wake the iPhone. Oddly, though, iSpeak remains active even if you put the iPhone to sleep-Fonix ought to add a control to let you turn voice recognition off temporarily and keep it running. iSpeak also provides comprehensive audio feedback, optionally repeating the name of the person that you’re calling, so you know you have the right number. Fonix Speech listens for your commands whenever it’s running, so you can use it without looking at the display.
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