Sending data as voice mail to phone

Question

Hello,
 
I have an application. It deals with only couple of columns. 
                     customer Name  varchar(100)
                     customer Phone varchar(20)
                     Department varchar(50)

How it works:
The customer service takes input from the customer and enters the Name, Customer's Phone# and the department they would like to talk to.
Note: The Sales Person EMail ID, Cell#, Phone#, Pager# are stored with the department. The moment, the customer service takes input, an email, pager will be sent to the Sales Person and it's working fine.

The Sales Persons wanted that they notified in their regular phone, BlackBerry by voice mail as soon as their department has been selected.

The application has been designed using C#, SQL Server 2005.

My questions:
   (1) How do I convert the SQL data in a wave format?
   (2) Do I need an interface to dial the phones and convey the voice msg?
   (3) Are there any freewares available so that I can use it?

Appreciate your help.

Thanks again,
Oppili Venkat