unlock car via cellphone

can u unlock a car with a cellphone heres the situation i lock my keys in the car i call the person with the spare key and tell them to hold the key next to the cell phone and press unlock while i hold my phone next the some area of the car i have a 09 2dr wrangler (jk is the model letters) i have seen this in the int some cars it works some cars it doesnt so if any of u have done this let me know where to hold my cell phone up to the car at if its possible with this model i know they use frequencys tailored to each car so maybe a cellphone cant carry them over a phone to the car could u record the frequency and then play it back thru ur cellphone?????????

no, thats an internet legend. when people test it they are generally so close the other transmitter is able to unlock the vehicle.