Yes this phone has a redial button. There are three grey buttons in a row just below the screen and the redial button is the one on the right. At least that is how mine is configured. Hope this helps. Hope this helps.
By Mr. Arthur Graham on 09 June 2016
I also have very poor sound and do not know any way to alter it . with satisfaction. I have not been pleased with the phones the answer phone it very bad for sound as well
By G.Rickett on 26 January 2015