When a new SIP phone is registered to Cisco Unified Communications Manager, it keeps failing and showing an “unprovisioned” error message in the phone display. Which problem is a possible cause of this issue?
- Auto-registration is disabled on the Cisco Unified Communications Manager nodes and the phone device does not have a DN configured.
- The DN assigned to the phone is already in use by another SIP phone.
- The phone cannot download and install the latest firmware.
- The DHCP settings are set incorrectly and the phone does not have an alternate TFTP defined.
- The DN configuration for this phone is shared with an SCCP phone, which is not supported.
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