What is the price of SupportSoft Kana or eGain products?

It depends on what type of software you are inquiring about. Typically you can rent or outright buy the knowledge management and VoIP software solutions that these companies offer. For an outright buy, you will pay a lump sum, plus a cost per seat. When renting, you will pay a monthly flat fee, plus a fee per seat. These companies charge between $200-$300/month per seat for renting. Of course volume discounts are offered. That's about all the information that I can offer you.