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.
Seasonal and time sensitive message encompass information that may be relevant for a limited period. Common areas of focus might be season products – such as pools or outdoor equipment, special events and holidays, disease awareness and prevention and time limited promotional discounts.

A lot of on-hold music is just wrong for the phone. It’s too pitchy, the tempo’s all wrong and half the time it’s too loud. If your callers can barely keep the phone up to their ear, they’re not going to stay on the line for very long. This is why we offer a collection of royalty-free music channels with every account, ensuring that you
In the first instance, we work closely with you to better understand the process you expect your staff to follow and can offer guidance on best practice and identify any obvious issues before we even begin. Once we start analysing your calls, we will simply listen to real customer and prospect calls and measure both the ‘process’ and ‘experience’ aspects. You can then expect to receive detailed, monthly reporting that allows you to quickly understand your current performance and identify where you need to be and how to get there, so you’ll be one step closer to achieving your business goals.