U.S. carriers are desperate to keep ARPUs from falling even as voice usage plummets in the face...

|By:, SA News Editor

U.S. carriers are desperate to keep ARPUs from falling even as voice usage plummets in the face of growing text messaging and e-mail use. Their solution: phase out calling plans that offer a bundle of minutes in favor of more costly unlimited plans. AT&T (T) and Verizon Wireless (VZ, VOD) both reported Y/Y declines in voice revenue in Q1, though this was offset by higher mobile data revenue. AT&T's CEO recently suggested the industry would eventually see data-only plans.