"Today just having a website with products and services on display is not enough to be successful. Promotion of your products and services can be done by using the website, Press releases, advertising and the media.
However, as the buyer has become "Unknown", and no interaction between potential buyer and your sales people exist, your sales people need to get more info from your website.
Registration for downloads do work, but not for all customers and not for all products or services. Moreover, the unknown buyer often uses fake or hosted email addresses, allowing to stay unknown.
Therefore: the more information one can filter out or generate form the website, by identifying the individual visitors and their origin (e.g. by company, country, language,...) and their interests, brings good reasons to start calling or sending a timely message to your prospects. Prospects which your sales people have identified on the Website."