ok, been looking round AND I HAVE NO IDEA, WTF is the issue with the iphone headset jack????? bloody hell, fill me in
Whoa, you can hook the iPhone up to a TTY and make calls with one?
Can you receive calls with a TTY too?
You need to buy a TTY device adapter:
http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore?productLearnMore=MA854LL/A
But once you do you can make and receive TTY calls.
Thats not really the issue here. The issue is that you cant use ANY other type of headphone besides the horrible-sounding earbuds
a) the headphones aren't as bad as they used to be (think iPod)
b) with a stanley knife you can modify any set of headphones, although that's undesirable.
Apple want full functionality. i.e. if you get a call, you answer with your headphones rather than pull out headphones and speak like a 'normal' phone.