Can you explain how business wireless plans have been historically designed by carriers?

In the wireless world for businesses, you used to have corporate lines in a "voice pool," and you would play with the numbers in the voice pool. Let's say there's a 10-person company. The company or a partner would figure out how many voice minutes all 10 employees use, and they may pick a big plan because it’s a better overall value -- for example, 6,000 minutes. Then they would also include a 10 percent buffer in case of overages. Then, there would be a data plan of (for example), 2 gigs per phone, and (a specific number of texts) or unlimited texting for each phone line. If you add that all up, you're in the range of up to over $100 a line.

About two or three years ago, mobile carriers started offering wireless plans with unlimited voice and text, but they still pooled data. At the time, these "sharing" plans were targeted at consumers and SMBs, but we deal with the enterprise, so we started using these plans for our enterprise customers.