California Public Utilities Code Section 224.4

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(a) "Mobile data service" means the delivery of nonvoice
information to a mobile device and includes nonvoice information
communicated to a mobile telephony services handset, nonvoice
information communicated to handheld personal digital assistant (PDA)
devices and laptop computers, and mobile paging service carriers
offering services on pagers and two-way messaging devices. Unless
specified, "mobile data service" does not include nonvoice
information communicated through a wireless local area network
operating in the unlicensed radio bands, commonly known as a "Wi-Fi"
network.
   (b) "Mobile paging service" means the transmission of coded radio
signals for the purpose of activating specific small radio receivers
designed to be carried by a person and to give an aural, visual, or
tactile indication when activated.
   (c) "Mobile satellite telephone service" means voice communication
to end users over a mobile satellite service involving the provision
of commercial mobile radio service, pursuant to Parts 20 and 25 of
Title 47 of the Code of Federal Regulations.
   (d) "Mobile telephony service" means commercially available
interconnected mobile phone services that provide access to the
public switched telephone network (PSTN) via mobile communication
devices employing radiowave technology to transmit calls, including
cellular radiotelephone, broadband Personal Communications Services
(PCS), and digital Specialized Mobile Radio (SMR). "Mobile telephony
services" does not include mobile satellite telephone services or
mobile data services used exclusively for the delivery of nonvoice
information to a mobile device.

Last modified: July 31, 2008