OnSip

OnSIP is a renowned provider of communications for businesses regardless of their sizes. Some of its clients include Tumblr, Mozilla and Disqus. The service is top-rated among companies that embrace a bring-your-own-device (BYOD) policy, making the app easy to use regardless of the device or operating system.

The service provider offers one of the most outstanding solutions for businesses with competitive pricing, numerous features, and flexible pricing and payment options. Users can exploit the robust admin portal to change and manage various features. One feature that makes the service so popular is its flexibility. Users can use desk phones solely if that is what their businesses entail. Alternatively, companies can use a softphone with the software you wish. OnSIP is also the most convenient way to combine both softphones and desk phones.

OnSIP comes with all the features that typical VoIP software has except group ring, personal attendant and voicemail. Furthermore, you can get premium features, such as third-party softphone integration, voicemail-to-email, and web-based PBX.