I'm researching corporate wireless plans. My company currently has about 30 lines scattered among various providers, and I'm supposed to figure out whether to consolidate these. I've tried calling the various providers, and they act like used car salespeople -- their prices seem to be based on what they think they can charge, not a standard price.

So maybe someone at TC can help...

What does your company pay per line for a corporate plan with unlimited data? Do you pay per-line for the data? (e.g., Cingular & Sprint don't seem to want to do an add-a-phone deal where the data is included.) What about for international calling rates?

If you got a good deal, do you have any suggestions how to handle the negotiation?