# Change SIP Digest Authentication Password
Configuration > Fax > IP-Fax Settings > Change SIP Digest Authentication Password

In order to use SIP for IP-Fax transmission, set or change the password for the Digest Authentication.

### New Password

Enter the password you want to use for SIP server Digest Authentication. You can enter up to 128 alphanumeric characters.

Note

- Symbols that can be used are:
  ! $ % & ' ( ) * + , - . ~ = _

### Confirm Password

Enter the new password again to confirm it.
The password entered here must be the same as that entered earlier in New Password. If it is not, the password cannot be changed.

## Buttons

### OK

Click to save the settings and return to the IP-Fax Settings page. The settings are applied when you click OK on the IP-Fax Settings page.

### Cancel

Click to cancel the settings.

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