That’s a big piece of a trillion dollar pie! The good news is, you don’t have to let all these callers off the hook. Studies show that with creative, professional sounding on hold messages your business will retain customers holding on the line (in fact callers will wait up to 3 times longer than silence or music), but you can also generate revenue by marketing additional products and services.
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.

So youre saying I cant add my own music and ATT actually has their own hold music? Apr 14, 2009 2:23 PM User profile for user: roaminggnome roaminggnome User level: Level 10 (106,314 points) Apr 14, 2009 2:27 PM in response to PsychedelicWonders In response to PsychedelicWonders
Although most clients select just one voice talent to read their entire script, some choose two voices for a more interesting finished product. The most common choice is to have both a male and female read the script in an alternating format.