This is something worth trying, at least for all you people that are able to convince others by the use of your voice. I came accross a service called Sales Force Audio . This is a simple service that allows you to dial a number and record any message. You also record the email address of the person or persons you would like to receive the message. Immediately, the people you choose are sent an audio postcard with your voice message.
The service costs less than $20/month for unlimited calls/emails and you can try it out for 7 days for $1.
According to Duct Tape Marketing
One of the best things about this new service is that you don’t need to be in front of your computer to put it to work. If you have a cell phone, you can send audio emails.