Wal-Mart Gets into the Mobile Phone Business

Competition in the voice business is about to get more heated, as Wal-Mart now says it will be a  retailer of mobile phone service, partnering with American Movil to sell low-cost service pre-paid service under the "Straight Talk" brand. The company is offering unlimited voice and text minutes for $45 a month, or 1,000 minutes and 1,000 text messages for $30 a month.

AT&T just introduced a new $60 a month pre-paid service under its "GoPhone" brand with unlimited U.S. voice calls and unlimited text messaging to the U.S., Mexico, Canada and more than 100 other countries.

The plan includes unlimited IM picture and video messages. The service does not require a contract, and offers a range of full keyboard devices.

And AT&T recently reevaluated its position on use of Skype from its Apple iPhones, using the mobile network, not just Wi-Fi.

All the moves show the intensified competition in the prepaid wireless segment, one of the few areas of untapped growth for mobile providers.

Still, the new activity around voice pricing only accentuates the on-going trend, which is that voice, though the historic driver of revenue for mobile and fixed providers, will not be the driver in the future.

As JP Morgan analyst Mike McCormack notes, voice accounts for $50-$60 of the $95 in monthly revenue generated by the typical iPhone user. If the average user were to drop AT&T’s unlimited voice plan ($99.99 a month) in favor of its cheapest ($39.99 a month), the carrier could lose upward of 20 percent to 33 percent of its voice revenue, at least from iPhone users.

In the past, industry executives accurately could say they were in the telephone or voice business. That won't work in the future, when they primarily will be in the communications business, with significant operations in the content and application businesses as well.