Note: if you have deleted the default music on hold and would like to restore it you may download the file from here. In the Upload audio file box, click Choose File to select a file from your computer, or type the location of the file.
Whether you need multiple IVR menu options, out of hours messages or on hold messaging we have a telephone audio package to suit your requirements. Our telephone audio is as good as any contract-based competitor. We just demystify the process and provide an affordable pay as you go alternative.

My company is based in Stockport. The team at Birmingham Telecommunications remotely accessed my disabled telephone system. Shaun and Lee efficiently and quickly fixed the problem, enabling us to function again.Their efforts deserve high praise. I would not hesitate to recommend this company.
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.