Cisco UC500 series Configuration Manual page 27

4.3.17 Click on the "Device" tab in CCA. This is more informational & shows if the
UC500 is an 8, 16, 32 or 48 user system, the hardware installed & the system type. Make
sure you select "Configure as a PBX" as your Voice System Type for SIP Trunking.
Figure 4.3.17 Device
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