Scope:
The following steps will allow you to factory reset the following SIP phones.
Requirements:
Some phones & firmware may require admin password to reset. It is recommended to ask your service provider or phone vendor to provide these password prior to resetting them.
Polycom VVX without Admin Password
Reboot the phone
When you see Starting Application, press cancel to interrupt press Cancel
Immediately press and hold the 1, 3, and 5 keys until Enter password to reset settings appears
Use the MAC address as the password. This can be found on the back of the phone
Your phone is now factory reset and the default admin password should be 456.
Polycom VVX with Admin Password
Reboot the phone by press and hold the dial pad keys 0, 1, and 3 all at once for around three seconds or until you hear a confirmation tone.
Next press and hold the dial pad keys 1, 3, and 5 simultaneously until you are prompted to enter a password.
Then enter your administrator password to factory reset. Once this is done, the default admin password will be 456.
Polycom IP with Admin Password
Press Menu
Navigate to Settings > Advanced.
Once prompted for a password, enter your admin password.
Select Admin Settings
Navigate to Reset to Default then select Reset to Factory
Your phone is now factory reset and the default admin password should be 456.
Polycom IP without Admin Password
Reboot Phone
Immediately press and hold these buttons simultaneously:
If your phone is either a SoundPoint IP 320, 321, 330. 331, 335, 430, and 450, SoundStation IP 5000 or 7000 or Soundstation Duo, press and hold 1, 3, 5, and 7 keys.
If your phone is either a SoundPoint IP 301, 501, 550, 600, 601, and 650 and VVX 1500, press and hold 4, 6, 8, and * keys.
If your phone is a SoundStation IP 6000, press and hold 6, 8, and * keys.
Hold buttons until prompted for a password, then enter the MAC address of the phone.
Select Admin Settings
Navigate to Reset to Default then select Reset to Factory
Your phone is now factory reset and the default admin password should be 456.
Grandstream
Navigate to Menu > System > Factory Reset
Press Yes when prompted
Cisco SPA
From the handset press the Setup button
Scroll to Factory Reset (14)
Press Select
Press the OK button
The phone will reboot in a factory reset state.
Yealink
Press and hold the OK button until the message Reset to factory? appears
Press Yes
Once it restarts, the phone will be factory reset. The default password will be admin.