I see a key point in trying to get in touch with the web developer. I may say I am usually rather disappointed with my request.

I try to explore ways to get the prospect/client to trust me, as I have the feeling they do not want to be kept aside at any time during the negotiation.
I always place the need for a conference call. In this way, the clients are there to act as a liaison and feel they keep control of the situation.
Have you used this approach? Do you have any other ideas or any other experiences to share? Thanks!!!!