You could have downloaded X-Pro-Vonage 2.0 for Mac from our software library for free. This software for Mac OS X is an intellectual property of Vonage, Inc. The application lies within Internet & Network Tools, more precisely General.
From the developer:
X-Pro-Vonage is a VoIP software solution that offers the freedom and convenience of making and receiving calls from your Mac using the Vonage service. More information about the SoftPhone service is available.
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Device Assistants