Calling ID – If your phone has a Calling ID display screen, you will be able to see the number of the person calling you before you answer (or don’t answer) your phone. Note if the person calling blocks their caller ID, you won’t be able to see it.
Caller ID – When making an outbound call, your phone number will be presented to the person on the other end, provided they have Calling ID enabled on their side.
Three Way Calling – Enables you to conference in a third person to a call.
Call Forwarding – You can set your phone up to forward incoming calls to another number.
Do Not Disturb – If you need some peace and quiet, you can send all incoming calls directly to voicemail.
Voicemail – When you are unable to answer a call, sip voicemail will take a message for you. You can then listen to the voicemail over the phone.
V-Mail – Receive an email alert when a new voicemail arrives. The email will also contain a sound file of the voicemail that you can listen right on your computer.