UCM6202 utilizing zero config. Firmware 22.214.171.124.
Zero config working well with four other GXP2135 phones.
Voice vlan 220 (10.0.220.x).
Factory default DP750, which then sets it back to the default vlan 1 (10.0.0.221). Unrecognized as a phone device by Meraki switch via LLDP.
Log into DP750, navigate to Network-Advanced-Settings and set Enable VLAN - Enabled, then set field Layer 2 QoS 802.1Q/VLAN Tag to 220. Save/Apply and reboot.
DP750 reboots and now pulls IP address 10.0.220.8 properly from voice vlan 220.
Navigate to UCM6202 zero config and DP750 shows up in list. Select DP750 and edit, then choose Use UCM for Profile1, SIPAccount 1, Profile1, ext 3103, Shared.
Brings us back to zero config page, and we select the cloud icon (refresh), answer OK to NOTIFY the device.
DP750 never receives any config.