RingCentral provides a cloud-based business phone system. We itl for our office number and direct RingCentral Office User Guide numbers (like a personal phone number). With RingCentral we make phone calls, send text messages and make team meetings. The great thing about RingCentral is that you can use it to make phone calls from the office IP Phone, from your personal mobile phone, or from a computer.
Windows App
Link for downloading the programs
https://www.ringcentral.com/desktop-app.html
https://www.ringcentral.com/apps/rc-meetings
Mobile App
Link for the Mobile app