1) Two voice ports (RJ11) for analog telephones or fax machines
2) Impedance agnostic: 8 configurable settings
3) Call waiting cancel call waiting call waiting id
4) Caller ID with name/number (multinational variants)
5) Caller ID Blocking
6) Call Forwarding: No Answer Busy All
7) Do not disturb
8) Call transfer
9) Three-way conference call with local mix
10) Message Waiting Indication: Visual and tone based
11) Callback
12) Call back if busy
13) Call barring with call barring
14) Delayed disconnection
15) Distinctive ring: call number and call
16) Off-hook warning tone
17) Rejection of selective / anonymous calls
18) Hotline and hotline call
19) Speed dial 8 numbers/addresses
20) Music On Hold
21) Fax: G.711 Pass Through or Real-time Fax over IP over T.38
