During initial power up, the IP Office automatically creates extension and user entries for all analog and digital extension ports in the system. This allows those devices to be connected immediately.

•! Warning
If the system has been upgraded from a previous release of IP Office software, all phones are restricted from making any calls until an upgrade license has been entered. The dialing restriction includes not being able to make emergency calls.

•This section does not cover the installation of DECT, H323 and SIP telephones. For installation of those devices refer to the appropriate supplementary installation manuals.