Accountants and solicitors are familiar with consultative sales. This is because they have their technical abilities first and foremost, and then have to sell those skills to prospective customers. This is something that is less common in manufacturing but it still happens, albeit in a watered down form. This will often consist of a professional sales person cultivating leads and then handing the contact over to a technical person who can then see the client and discuss matters on a technical level as the prospective client wishes.
The trick of consultative sales is to appear to answer all questions in a non technical way as initially required, but to demonstrate at the same time that your company knows what it is doing and will actually add value to the client. In short, it fills the client with confidence.
It is important that people selling in this way undergo at least as much sales training as a traditional sales person. They also need to recognise that they are selling. This is particularly important in professional services where many accountants and solicitors find it difficult to sell, and even to accept that once they reach a certain level, it is their prime job.