Yealink
SIP-T33G.
Entry colour desk phone. 4 SIP accounts, 12 line keys.
At a glance
What this phone asks for, and how it finds it
- Vendor
- Yealink
- Family
- Entry colour desk phone
- Capacity
- 4 SIP accounts, 12 line keys
- Provisioning file
- <mac>.cfg
- Other files it requests
- y000000000000.cfg (shared file, no credentials) and y000000000124.cfg (model defaults)
- DHCP option
- Option 66, then 43
- MAC address
- Printed on a label on the underside of the phone, and on the outer box.
The phone checks a custom option if one is configured, then option 66, then option 43, before falling back to whatever address is already saved in its flash memory.
Factory reset
Returning this phone to defaults
Steps
- On the phone: Menu, then Advanced (enter the admin password), then Reset to Factory Settings, then OK.
- This phone's admin password is set per device by this platform and is not the Yealink default. If you do not have it, contact support rather than guessing at the vendor default.
If it does not come up
- Confirm the phone has a network cable in the internet/PoE port, not the PC-passthrough port.
- Confirm the model recorded for this device matches the label on the phone exactly. The wrong model number means the phone never receives its model-specific defaults.
- Confirm a line is assigned to the device in the portal. A phone with no line assigned is refused before it ever reaches rendering.
- If the phone previously worked elsewhere, factory reset it before enrolling: an old provisioning server address in flash memory can outrank a freshly issued one.
Next
Set the matching DHCP option once on your own network, and every Yealink phone you plug in after this one finds the platform on its own.