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Factory reset an IP phone

Last updated: 2026-07-15

Factory-reset a phone before you move it to a new location, hand it to a new user, or if RPS provisioning isn't picking it up. The steps depend on the vendor.

VendorReset method
YealinkHold OK for 10 seconds, confirm Reset to factory.
FanvilHold # for 5 seconds during boot, or use the web UI: System → Configurations → Reset.
SnomOn boot, press Settings → System info → Factory reset.
GrandstreamWeb UI: Maintenance → Upgrade → Factory reset.
PolyHold 1 3 5 together during boot; enter the MAC address as the password.