Depending on how large your business is, you may want more than one on hold messaging option. If you have several departments to take care of, you should consider the customizable extensions feature available through most systems. This feature allows you to craft specific messages for various phone extensions throughout your organization. If you need to provide different information to different callers, this is the best way to do it.
The term “ring” has long been an anachronism, as there haven’t been actual bells on phones for decades. The first ringback tones were created in Finland in 1998, when the Finnish mobile operator Radiolinja began offering the service of hearing customized monophonic ringtones and ringback tones that were sent over the air. Ringback tones, for whatever reason, never really caught on in America the way they did internationally.

Music – during voice over messages, the music will be slightly raised in volume. It is important to select a piece of music that compliments your brand.
I haven't used this device for an extended period, but since there are no mechanical parts, I expect that it will last. We have been using a professional on hold service for many years at about $60/month. The box that the professional company gave us sounded great when customers would call from a Lan Line. But, when calling from cell phone the voice messages were lower volume and the music would sound horrible. Music keeps cutting in and out and sounds very staticky. So we decided to save some $ and cancel our subscription and buy this unit. We are using the default music and voice messages that came preloaded instead of doing our own music and messages.