I do this for a living for other companies (no I do not want your business) but the most overlooked aspect of B2B selling is patience. Your prospect has many suitors vying for their attention, many bosses that must sign off an the sale, and a legal department and IT department that all want to feel included. Measure your pipeline/sales by quarter, not month. Patience. Patience. Patience. Build rapport, be useful and valuable. Be prepared to do this for a long time.

That's how it works.