Sanyo Mirro User Manual page 12

Certain mobile phone features are dependent on the capabilities
and settings of your service provider's network. Additionally certain
features may not be activated by your service provider, and/or the
provider's network settings may limit the feature's functionality.
Always contact your service provider about feature availability and
functionality. All features, functionality and other specifications, as
well as the information contained in this user guide are based upon
the latest available information and are believed to be accurate at
the time of printing. Kyocera Communications, Inc. reserves the
right to change or modify any information or specifications without
notice or obligation.
4 1A. Setting Up Service