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2.4 IP Office 500 Standard Edition / Professional Edition
By default the IP Office 500 control unit runs a subset of the full IP Office functionality called IP Office Standard Edition. In this mode the IP Office 500 is restricted to a maximum of 32 users (32 Analog extensions maximum, 24 Digital Station ports maximum, 32 IP extensions maximum or a combination of all types of extension ports) in the base control unit with no support for expansion modules.
IP Office Standard Edition supports Embedded Voicemail, Phone Manager Lite/Pro/PC Softphone, SoftConsole, TAPI, SMDR, CBC, SIP Trunking and IP DECT by adding the optional licenses where relevant.