reminds me of https://www.sparkfun.com/tutorials/51 https://www.sparkfun.com/tutorials/51 where they give full instructions for wiring up a whitebox cellphone t

reminds me of https://www.sparkfun.com/tutorials/51 https://www.sparkfun.com/tutorials/51 where they give full instructions for wiring up a whitebox cellphone to an old rotary.