The following is a list of features and options for single-line telephones.
Some features require activation codes.
There is no monthly charge for features unless stated. Standard Features Primary Directory Number - Telephone number unique to that particular station. This number can appear on other stations, if required. A second dial tone is also provided to originate an outgoing call or to activate another feature. Permanent Hold - Using a feature code, you can hold a call and replace the handset on the phone.