How to install Zoiper on CentOS 7

This video explains the installation of Zoiper on CentOS 7. Zoiper is an free, open-source and multi-platform VOIP based soft-phone tool which is similar to skype and viber.
For more explanation on this video: https://www.linuxhelp.com/how-to-install-zoiper-on-centos-7/

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centos 7