• Web interface and history of all text messages, phone calls and voicemails.
• Transcribes voicemail messages to text message and posts to web interface
• Transcribed voicemail messages and text messages are searchable for the user
• Missed call log when cell phone is out of service
• One phone number can ring multiple phones, work and cell
• Able to choose a new number when creating the account
• Pulls in contact list from gmail account
• Able to send text messages directly from web interface
• Able to send and receive text messages from any email address – Sept 09 2009
• Web interface is accessible over mobile phone web browser
• Can port the google voice number to a cell phone provider
• Record phone conversation
• Currently Free, no charges for all 50 US states  and Canada calling and text messaging
• Mass texting feature has been added, maximum 5 people at once.

Cons

• No official mobile application for Windows Mobile or iPhone
• No MMS or picturemail support
• No incoming email to text message support
• No short code support
• No scheduling for a text message to be sent at a later time
• No statistics/metrics on phone calls/text messages
• No 212 or 917 numbers available, limited combinations of 646 numbers
• Have new sets of 917 and 646 numbers available- Aug 13th 2009
• Can’t port a number to the google voice account
• Slight delay in voice conversation, around a full second lag – Oct 09 not as often
• Lose free minutes when dialing people on the same cell phone carrier
• Does not support “Calltones” or “Ringback” music
• Privacy concerns routing through Google

http://www.google.com/voice

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