Activating Call Forwarding With US Cellular James Updated May 27, 2019 13:34 Follow Please follow the interactive help guide to help activate YouMail for US Cellular. Related articles What is Conditional Call Forwarding? Activating Call Forwarding With AT&T How to Reconnect to My Carrier? How to Close My YouMail Account & Return to My Carrier's Voicemail Which Service Providers Are Supported by YouMail Drop Box? Comments 0 comments Please sign in to leave a comment.