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.
الشركة هناك. كما يمكنك أيضا أن مراسلتنا عن طريق البريد الإلكتروني[email protected] لحظة من فضلك. سوف نكون معك بعد قليل.

SpotWorks writes and produces fun phone messages on hold. As heard below, they entertain your listener with fun light hearted facts. Many of the messages cleverly tie in with the fact that the listener is obviously on hold. After all, why ignore the obvious fact? Phone Messages on Hold Samples. Fun Fact Phone On Hold – Sample 1
Your phone system may allow you to add custom on hold voice messages based on the position of the caller in your queue. If you have such a system, consider working with us at ProVoiceUSA.com to record the messages on hold voice your callers hear. Professional Production of Messages On Hold Voice