Business phone systems by the size: Up to 30 users Phone System for SMB (small business): Spark CXS1000 CXR1000 30 - 200 users Business Phone Systems: CXR2000 CXE2000 200 - 1500 users Enterprise Phone Systems: CXR3000 CXE3000 Blue Steel CXT3000 Blue Steel...

Business Phone Systems – IP PBX Appliances
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