For IP Office 5.0+, the IP500 Upgrade Standard to Professional license is no longer required. Features previously restricted if this license was not present and valid can now be used. That include support for the Voicemail Pro and Conferencing Center applications, support for external expansion modules and support for the Conference Meet me short code.
By purchasing the upgrade license from Standard Edition to Professional Edition, additional functionality is enabled.
- Ability to expand the system using up to eight external Expansion Modules, allowing the IP Office 500 to support a maximum of 272 phones through a mixture of analog, digital or IP handsets.
- Support for additional analog trunks via IP Office Analog Trunk 16 Module.
- Professional Edition also enables the licensing of advanced applications such as Voicemail Pro, CCC, etc.