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Permission flags can be added to each parameter in an XML provisioning file, to define whether that setting is read-only, read/write, or read/write-protected. Valid values for the permission flag are:
perm="!": (defined in SRAPS as: 'Read & Remain') The configuration parameter can be changed by the user. In case the user changed the value from the default, the value will not be overwritten during provisioning.
(perm="!" is not recommended for credential-related settings like http_pass or admin_mode_password, as the phone does not track the interface used for the first-time configuration. Because of this, any subsequent provisioning of those settings with new values will fail as the current values are considered as changed by the user. Please also see the hint related to this type of setting)
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