A single Google forwarding number to all of the user's phones
Unlimited free calls and SMS within the US and Canada, up to three hours in individual length.
Calling international phone numbers with rates starting at US$0.02 per minute
Call screening. Announcement of callers based on their number or by an automated identification request for blocked numbers
Listening in on someone's recording of a voice message before taking a call (press 2 while answering, * to "pick up")
Blocking calls from specified numbers
Blocking calls from numbers identified by Google as telemarketers
Send, receive, and store SMS online
Answering incoming calls on any configured phone
Call routing. Selection of phones that should ring based on calling number
Voicemail transcripts. Reading of voicemail messages online
Listening to voicemail online or from a phone
Notification of voicemail messages via email or SMS
Personalized greetings based on calling number
Forward or downloading of voicemails
Conference calling (press 5 when answering call)
Call recording and online archiving (press 4 while on a call)
Switching of phones during a call
Viewing the web inbox from a mobile device/phone
Customize preferences for contacts by group
Ability to change your number for a fee
Ability to port your mobile number for a fee
Specifying an existing phone number instead of the Google Voice number on initial setup for use with limited functionality, such as some voicemail functions. and using the voice mail system for the user's phone number (mobile devices only).
