They are ok if you do them correctly. First piece of advice would be do not use a dialer. There are very few things business owners hate more than talking to so

They are ok if you do them correctly. First piece of advice would be do not use a dialer. There are very few things business owners hate more than talking to some robot asking them to press 1. Second, cold calling is VERY hard work regardless of how good your product is. You might want to hire a sales professional. If you don't(and I presume you have no phone sales experience) they'll eat you alive. Finally, there are other ways of marketing you may have left out. Have you advertised in trade publications? Or asked for a story in the tech press? Remember that reporters have deadlines to meet and they'll cover almost anything that's interesting. Hope this helps. Good luck on your launch.