Your Meridian Digital Telephone provides easy access to a wide range of business features. Your telephone system administrator assigns features to your feature keys, and provides you with passwords and other codes as required. One of the codes provided by the administrator is the Special Prefix Code (SPRE) which you need in order to use some features. For other features, the SPRE is optional. There are three models of Meridian Digital Telephone. The M2006 has six feature keys. The M2008 has eight feature keys, and the M2008HF includes a built-in microphone. The M2616, shown below, has 16 feature keys and also includes a built- in microphone. The M2216ACD and M2016S Secure Set also have 16 feature keys. Many of the features described in this manual are also available on the M2616CT Cordless Telephone. Please refer to the documentation packaged with the M2616CT. Use the Hold feature to place a call on hold. An example of where hold would be useful would be to answer a call on a second line without disconnecting from your original call.