Your audio image is important. Phone contacts are often the first impression people have of your business. If they must hold on the phone, this is your chance to impress them with relevant greetings and telephone hold messages. Callers can be existing clients, future clients, potential customers, and they are all important. A professional voicemail recording boosts your credibility, and encourages prospects and potential connections to leave a voicemail when you can't answer the phon.
Besides that, its a music player that goes full screen on landscape mode and has a funny sound board. I made a toggle button that hangs so you can use it for hold music during a call. Thus whenver someone puts you on hold just hit the hovering musical note and start playing music. Or play music while someones on the phone with you.

Voice over Internet Protocol, similar to cellular networks, is handled digitally. Ringback is one way in which VoIP is setting itself apart from traditional telephony services. When you subscribe to business VoIP, your phone will most likely come pre-programmed with both ringback and on-hold music. VoIP providers, unlike cell phone carriers, don’t charge extra for ringback tones. Not only that, you can upload your own custom ringback and on-hold music, such as a favorite song, a customized soundtrack, or even a customized greeting or up-sell message. VoIP subscribers can select different connect and on-hold music by accessing their online portal.
Phone call analytics are certainly not something that came with the original 1960s technology. However, it has become one of the most useful aspects of on hold messages today. Now, you can track and view how calls went through an online portal connected to your messaging service. This will allow you to see when callers hung up on toll free numbers, who chose to purchase something due to the messages and more. If you want a new way to keep track of your business calls, the analytics services that come with on hold messages could be a big help.