Ian Knot = Ian's Fast Shoelace Knot. I tie my shoelaces with my own Ian Knot, the World's Fastest Shoelace Knot: Make a loop with both ends and simultaneously pull them through each other to form an almost instant knot. It's a truly revolutionary way to tie your shoelaces! Recommended!
Text telephone (TTY) mode is used for text communication over a telephone line. A TTY device must be connected to the computer to interpret the modified audio; otherwise you might experience poor audio quality during the call. Using TTY mode in a conference call might also cause audio quality issues. By default, TTY mode is turned off. You can turn on TTY mode by clicking Phones in the Lync - Options dialog box. You will then need to sign out of Lync 2010 and sign back in to use the feature.
Of course, nobody is going to buy something they don't understand, so let us explain. All these different names mean the same thing: TTY stands for teletypewriter, TDD stands for Telecommunication Devices for the Deaf and Text telephone means a phone that is enabled to send text over phone lines. All these terms are referring to the same device. So how does a TTY / TDD / Text Telphone work? This device or phone, when hooked up to a phone or analog jack, allows for the typing of messages back and forth between text telephones. Anybody can call in to a TTY phone (presumably to a hard of hearing or deaf person) from a relay service, also known as Telecommunications Relay Service or TRS (people love making up acronyms).