Turn your telephone hold time into a sound investment, enhance customer awareness, improve customer loyalty, and increase your bottom line. Whether you own your message on hold equipment and just need to freshen things up with new content, or you want to implement a new message on hold program, On Hold Pros is ready to help. UPDATE: On Hold Pros is now specializing in Telephony Audio Imaging for VoIP systems of all makes and models. If your VoIP system can broadcast audio files, then we can produce a message on hold, music on hold or voice prompt for IVR program to work with your VoIP system. Whether you need mp3, G.711, G.729, or any type audio files for your VoIP system, we have the professional conversion software to make it work.