3CX vs ShoreTel


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3CX
3CX Phone System for Windows is a software-based IP PBX that replaces a proprietary hardware PBX / PABX. 3CX’s IP PBX has been developed specifically for Microsoft Windows and is based on the SIP standard, making it easier to manage and allowing you to use any SIP phone (software or hardware).
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ShoreTel
Brilliantly simple VoIP, PBX and mobile solutions tailored to your phone system needs. Designed from the ground up to simplify phone system administration and delight users, ShoreTel’s PBX phone solution software runs on our solid state appliances or virtualized on your servers, and is ideal for organizations that want hands-on control. For companies that want to get out of the business of running a phone system, our end-to-end business VoIP phone system is packed with phones and features that help you become more efficient, more mobile and more productive than with any alternative solution.