Hosted PBX

CornerStone’s hosted IP PBX service delivers on the promise of proven performance, scalability and cost savings that you demand. Our flexible, feature-rich service will help you increase productivity and transform the way you do business.

No matter where they are located, customers will be able to reach your employees easily, and colleagues will communicate seamlessly with each other. CornerStone will install IP desk phones that work on your LAN. You’ll have a straightforward web interface for making changes on-the-fly.

Interested in a phone system but not sure hosted PBX is for you? Explore our SMART Plan offer or talk with your CornerStone account executive about our phone systems from ESI or Samsung.

Gain all the advantages of a PBX office phone system without the hassles of managing your own communications server. Along with an IP deskphone, your hosted PBX service includes:

Local Presence

We’ll port your existing local numbers, or you can get new numbers in any market you want your customers to find you.


Incoming calls can reach you no matter where you are, with sim-ring and find-me/follow me and integration with smartphones and tablets.


Your calling provides unlimited outbound domestic usage.


Expand by adding phones and lines as you need them. And for those road warriors who are never in the office, subscribe to virtual phone service and avoid the additional one-time cost of an IP desk phone.


Voicemail: Don’t miss a call with voicemail that lets you listen to your messages by receiving them in e-mail or by dialing in from any phone to hear your messages.

Call routing with Auto Attendant: Easily route incoming callers to where they need to go with auto-attendant. Make sure calls reach the departments or individuals they’re looking for, even if they’re at different offices.

Talk with your CornerStone representative about how you can benefit from these optional services:


  • Toll-free inbound
  • Fax to e-mail
  • Softphone to make and receive calls from your laptop or computer

Contact your CornerStone technical sales specialist to discuss how we can support your line of business software, or any of your organizations’ computing requirements. Our custom pricing plans are designed to accommodate organizations of any size. Click here to chat with a representative and place your order.