Had dealings with Gordon today, brilliant service thank you very much. Great team at Birmingham Telecom. Always helpful.
One of the most important elements of writing Auto Attendant or Phone System Greetings is having an understanding of how your phone system is set up. Step 1: Your on-hold message provides an excellent opportunity for you to market to your customers, and share all of the details that make your company unique.

For those still using analogue or digital phone systems, voice on ISDN circuits has a bandwidth of around 4000Hz. The audio from an analogue phone is sampled at 8000Hz, and because of the nyquist theorem, must be low-pass filtered to 4000Hz. So any frequencies in the audio beyond 4000Hz are lost. Interestingly, the human ear and mind are good at recognising human speech, so this is considered "toll-quality" voice, i.e. good enough to pay for. This is the reason why certain vocalised letters are difficult or impossible to tell apart on the phone. For example, the differences between B, P, T, C, etc. are almost entirely above 4000Hz.
At Healthcare Messages On Hold, we specialize in delivering effective and informative custom telephone on hold messages to the healthcare industry. In any healthcare practice, on hold time is a fact of life. Patients’ calls often involve pulling a chart, looking into billing records or addressing questions that need attention from others.