The Motorola V171 is just a dated phone that has problems with locking up on the user requiring the removal of the battery to reset the phone. The phone also has no external caller id.
Most carries have discontinued selling the phone or is nearing its end of life phase. One of the main reasons to avoid the 171 is the lack of accessories; namely a car charger. You will have better luck finding ? The Lost Arc? than finding a car charger at your local dealer.