Acquired VoIP Companies

I have listed some acquired VoIP companies on this article. As you probably have noticed many corporations have got into VoIP space especially in the last ten years.  Some of these corporations include the gigantic ones such as Google, Microsoft and Facebook.

As you will read below Google came up with its Google Voice after it bought Grand-Central and Gizmo5, Microsoft with Skype and Facebook with WhatsApp.

List Of Acquired VoIP Companies

Let's start with recent acquisitions:

Vocalocity Logo

Vocalocity was a small business VoIP provider. Mainly offered hosted PBX systems to small and medium sized companies in Canada and the United States with no-contract term. The company was founded in 2006 in Altanta, Georgia. Vocalocity and was acquired in October 10, 2013 by Vonage and is now replaced with/or called Vonage Business.

Products and Services:

  • Unlimited Extensions
  • Metered Extensions
  • Virtual Extensions
  • VoIP Phones
  • Routers

Plans and Pricing:


Vocalocity has been acquired by Vonage. More about Vocalocity here



WhatsApp Logo

WhatsApp was founded in 2009. It is one of the most popular and free mobile application. WhatsApp offers you free phone calls, real-time instant messaging (IM) and audio record. The company was acquired in February 19, 2014 for $19 Billion. More about whatsapp here.


Skype Logo

Skype was founded in 2003 by Skype Communications SARL. It is the most renown and powerful VoIP soft-phone used by millions of people around the world. The company has been acquired by Microsoft in 2010. Visit Skype article to read more.


Google Inc. came up with its Google-Voice service after acquiring GrandCental in 2007 and Gizmo5 in 2009.

Gizmo Logo

Gizmo5 was a VoIP softphone similar to messengers like AIM, Jabber, MSN and Yahoo. Gizmo  was also known as Gizmo Project and SIPphone.

Among its features were:

  • Voice and videos Calls
  • Photo and files sharing on your mobile phone
  • Cheap international calling

Gizmo was acquired in November 2009 by Google.


GrandCentral Logo

GrandCentral was another cool VoIP solution that merged to Google Voice. With GC you would manage your phones as a unified communication in a single platform and set a rules. For example when your contacts call at your GrandCentral number all the phones that you set a rule to receive calls would ring at the same time. Those numbers can be home, work and mobile phones.

GrandCentral was also acquired by Google Inc. in March 11, 2007.


Sipura Technology Inc. used to supply the famous VoIP Phone Adapters  SPA-2000. The company has been acquired by Cisco in April 26, 2005. Brief info about Sipura here.

More acquired VoIP companies

And below are some more acquired, ceased/retired companies that probably are forgotten...

Dialpad Logo

Dialpad Communications Inc. was one of the first VoIP provider that offered free computer to phone calls in 1999. The company claimed to attract and register over 14 million users in less than two years. And its users placed over 300 million calls, generating up to 2 billion minutes of traffic to and from North- America and 200 countries. Dialpad was founded in 1999 and acquired by Yahoo Inc. in June 13, 2005. More about Dialpad here.


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What are your thoughts about these acquired VoIP companies ? Let us know in the comments section below!

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