3CX Phone vs Zoiper

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3CX Phone
mockupsMobile-iPhone-Android3CXPhone is a VoIP phone client for Windows, Mac, Android and iOS. It’s a softphone that is integrated in 3CX Phone System and by connecting it to a VoIP Provider users can make calls to any mobile or landline number. The VoIP phone client can be installed on laptops, PCs, smartphones and tablets boosting your company’s productivity and mobility while at the same time slashing your telecommunications costs.
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Zoiper
Zoiper, the free softphone to make VoIP calls through your PBX or favorite SIP provider. Available for iPhone, Android, WP8, windows, mac and linux.