Uniden Cordless Phone "amp handset wont connect" Questions

...handset & make sure that the battery pack is installed correctly, and not upside down. Also make sure the little wires that come from battery pack are plugged into the tiny jacks of the phone ...

...amp; my other phone worked prefectly fine. What is the product code? Finding the product name/model number. Finding the product name/model number: Look on the bottom of your phone for the serial ...