On Wednesday T-Mobile launched new Small Business Value Rate Plans, including one for $45 a month per line for unlimited talk, text and data, with the first 5 GB doled out on full speed. That offer expires November 1, requires a two-year contract and business federal tax ID number, and has a limit of 99 voice lines per account. The company, which says it is strengthening its support for small business, is also refreshing its small business web site and rolling out dedicated in-store merchandising and customer support for small business customers in retail stores nationwide.

In other T-Mobile news, on Tuesday the company announced its Direct Carrier Billing program which lets customers make online purchases and charge them to their monthly phone bills. The company says it expects Direct Carrier Billing to be available later this month. A company executive said T-Mobile was the first U.S. carrier to offer direct carrier billing for the Android Market in 2009 and that the new program extends the payment option to virtually any online source and across a variety of mobile devices.

Read more about T-Mobile’s new rate plans ^[1] and Direct Carrier Billing ^[2].