Virtual Sales Ltd (VSL) offers over 50 years experience in telesales, telemarketing, appointment setting, lead generation, market research, channel sales, channel marketing and lead generation services.our model offers best of breed sales people but on a part-time basis. You can have a dedicated caller on your account from as little as 1 day per week!see for full details of the services offered or call us on 01798-875040 for a no obligation chat about your requirements.