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200+ companies in VoIP
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Skype

Viber

CM.com

Tango

Dialpad

MessageBird

Aircall

Ooma, Inc.

Social Media +3

Elymentz

Voys

Sinch

Rebtel

ZCast

Node4

MNF Group

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How to change your Skype display name, to make it easier for friends or employers to find you

Microsoft in trouble after revelation unvetted Chinese contractors listened in on Skype calls with NO security

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UAE may lift ban on WhatsApp calls, head of country's cybersecurity authority says

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Sangoma Acquires VoIP Innovations, for Up To US$42M

The problem(s) with VoIP

Magnet Launches Business VoIP Service

New Vector scores $8.5M to plug more users into its open, decentralized messaging Matrix