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Google Voice Discovered Allowing Pure VoIP Calls

Posted by CmdrTaco on from the who-needs-landlines dept.

From the article "Google Voice users learned late Monday that the service now has a way of making purely Internet-based phone calls. Making a SIP call with a 'sip:' prefix, the Google Voice phone number and @sip.voice.google.com skips the conventional phone network entirely, saving users cellphone minutes. Disruptive Telephony tested it and found that a call worked 'great.'"

5 of 110 comments (clear)

  1. Not responding SIP traffic now by Anonymous Coward · · Score: 4, Informative

    sip.voice.google.com now silent. See --> http://www.onsip.com/blog/rob/2011/03/08/google-voice-sip-address-no-longer-available-sipvoicegooglecom-now-silent

    1. Re:Not responding SIP traffic now by mysidia · · Score: 4, Insightful

      My (faint) suspicion is some VoIP telespammers/tele fraudsters saw the Slashdot article/blog and immediately started abusing the feature...

      As nice as 'free SIP access' to the POTS network through Google voice might sound, it's not sane.

      Even less sane than having offering open SMTP relays, anyways; since the telephone network is so poorly equipped to deal with any type of abuse (other than it actually being a crime if the perp happens to live in a 'civilized' country, and happens to be traceable).

  2. Re:Sniffing? by Onuma · · Score: 5, Informative

    Unless I'm misreading the chart, it seems like gvoice has SRTP encryption.
    http://en.wikipedia.org/wiki/Comparison_of_VoIP_software

    --
    What else can happen when an unstoppable force collides with an immovable object?
  3. Coolness, but you can already do this. by morgandelra · · Score: 4, Interesting

    If you take an android device with google voice installed. Tell it use google voice for all calls. The get an Xlink device (http://www.myxlink.com/index.aspx). Peer the XLink to your android device via bluetooth. Now you have analog dial tone coming out of the XLink and you can put it into a PBX or regular analog phones.

  4. Re:Intended? by Eponymous+Coward · · Score: 5, Funny

    I remember one time I accidentally created a SIP client. I was just trying to compute some fibonacci numbers.