Good News for Google Voice Users, Obihai VoIP Adapters Now Officially Supported

September 26, 2014 by Nathan Miloszewski
Obihai Google Voice

Google Voice now officially supported on Obihai VoIP Adapters

This is combination of old news and new news.

Many people have been using Google Voice with Obihai VoIP adapters for some time now to take advantage of free calling with the wireless or corded phones they already own.

That’s why the company has this appropriately titled blog post, The Google Voice Service is Still Working on My OBi! How come?. Google was scheduled to drop the XMPP communication protocol that made this possible.

The new, good, news is that Google Voice is now officially supported on Obihai VoIP adapters.

What This Means

What this means now is that instead of crossing your fingers that your OBi device will still work with Google Voice, which Obihai could not confirm or support, is that you won’t have to switch to a new voice service afterall.

Obihai + Google Voice features:

  • Personalized greetings
  • Call blocking
  • Voicemail transcription, text alerts, and SMS to email
  • Free calling to the U.S. from the U.S. and Canada ($0.01 per minute from the rest of the world)
  • Low international calling rates
  • E911 VoIP service optional for a small fee
  • Your OBi phone rings when your Google Voice number is called, or when your Google ID is called through Google Hangouts or GMail
Update: Obihai announces Google Voice now officially supporated

Update: Obihai announces Google Voice now officially supporated

Supported Devices

Google Voice can be accessed via the:

  • OBi1032: OBi Series IP phone
  • OBi202: 2 Port adapter, supports OBiWiFi, also works with other SIP providers
  • OBi200: 1 FSX port, USB, OBiWiFi, supports up to 4 SIP accounts
  • OBi100: 1 Port adapter
  • OBi110: 1 FXS Port and 1 FXO port for existing analog phones and fax machines


  • Matt Becker

    Do Obihai VoIP Adapters work with an already existing IP phone? I have a Polycom VVX 500 and want to know if it will connect to the Obihai VoIP Adapter and Google Voice?

    • Hi Matt,

      Yes, it will. The OBi is configured as in the Voxilla tutorial. Following is the needed configuration on the Polycom IP Phone.

      1) To accept incoming calls from the unregistered OBi 2) To send outgoing calls to the unregistered OBi

      Note that Polycom’s do not use different SIP ports for each line, like the Linksys do. The phone listens on 5060 for all lines. What determines which line the call goes to is the “reg.x.auth.userId” value.

      If you have more questions, please submit a ticket here: Thank you!

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