| http://www.w3.org/ns/prov#value | - et header prior to accepting the call; if the call is from the analog cellular system, then activating a first indicator to signal to a user receipt of an analog call; if the call is from the digital cellular system, then determining if the call is a voice or a data call; if the call from the digital cellular system is determined to be a voice call, then activating a second indicator to signal to
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