IP Office External Expansion Modules provides additional Analog, Digital and Trunk ports for the telephones. The IP Offices External Expansion Modules help you reach the full potential of your Avaya IP Office Systems. These External Modules allow you to connect up to hundreds of user stations which will make your business more productive. The External Expansion Modules for the IP Office could either be rack mounted or stacked on top of your existing Avaya IP Office base unit.
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