I use Verizon. Every Verizon phone, in addtion to a phone number, has an email address. For example, Verizon's is [10-digit number]@vtext.com, or [10-digit number]@vzwpix.com for picture messages. Basically every major service provider has this feature, except with other email extension addresses (?) of course.
It would be nice to receive texts for whenever I'm able to take my turn. It would also be nice (I mean, necessary) to enable/disable this feature whenever I wanted. Would this be accomplished through a server? Or would I have some sort of script that makes my own email address do this? I have no idea what I'm talking about.