Yealink
W70B (with W73H / W74H / W78H handsets).
DECT base and cordless handset. 10 SIP accounts, one per registered handset.
At a glance
What this phone asks for, and how it finds it
- Vendor
- Yealink
- Family
- DECT base and cordless handset
- Capacity
- 10 SIP accounts, one per registered handset
- Provisioning file
- <mac>.cfg (the base station's MAC; the cordless handsets do not provision separately)
- Other files it requests
- y000000000000.cfg (shared file, no credentials) and y000000000146.cfg (model defaults, shared across the whole W7x family)
- DHCP option
- Option 66, then 43
- MAC address
- Printed on a label on the underside of the base station, not on the handset.
The base station is what asks for a provisioning file; the handsets that pair to it never touch the network directly.
Factory reset
Returning this phone to defaults
Steps
- On the base station's own display (or through a paired handset's menu): Settings, then Upgrade, then Reset to Factory Settings.
Source: Yealink support: How to factory reset the DECT base.
If it does not come up
- Confirm the base station, not a handset, has the network cable.
- Confirm the handsets are paired to the base before expecting a line to ring on one of them.
- Confirm a line is assigned to the device in the portal.
- If the base previously worked elsewhere, factory reset it before enrolling.
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.