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30 - 200 users, small business phone systems comparison

VoIP PBX (Private Branch Exchange) business telephony
Feature/ModelCXR2000 / XR2000CXE2000 / XE2000Software PBX (CompletePBX virtual machine)
For businesses with standard telephony requirements, where telephone traffic is typically at 40% usage, the XR series provides a reliable and cost-effective solution for three sizes of organizations.For businesses whose call volumes are higher than 40%, and/or are running additional applications which mandate a more powerful phone system, and/or have stricter policies about networking and reliability, the XE series is the right
Max. capacity (users)200200up to 5000 users, licensed per amount of extensions
Max. concurrent calls (SIP only)8585based on resources
Max. concurrent calls (PRI + FXS)4545-
Max. analog ports (FXS, FXO)160160via gateway
Max. digital ports
BRI ISDN1616via gateway
E1/T1 PRI, E1 R2, T1 CAS11via gateway
Ethernet ports1 x 1 GB2-3 x 1 GB-
Mass storage320 GB/1 TB/64 GB SSD320 GB/1 TB/64 GB SSD-
RAID1 (2 HDDs)image001image003-
Hardware Echo Cancellationoptionaloptional-
Analog Line Failoveroptionaloptional-
Rapid Recoveryimage003image003VM snaphot
Internal backup and restoreimage001image003VM snaphot
Power supply notificationimage001image003-
Front panel LCD and keypadimage001image003-
Front panel USB accessimage001image003-
Power supplyInternalInternal-
Size19" 2U19" 2U-
Fan redundancyimage001image003-
SoftwareCompletePBX5 software, free upgrade under warranty, or ElastixCompletePBX5 software, free upgrade under warranty, or ElastixCompletePBX VM, available for VMware, Hyper-V and Oracle VirtualBox
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