| 摘要 |
A service provider such as a physician or an automobile mechanic is identified from a wireless communicator based on categories of service providers such as physicians or automobile mechanics. In particular, a radiotelephone call is initiated from the wireless communicator to a first telephone number that corresponds to a first service provider of a first category, for example a first physician. The wireless receiver then detects that the radiotelephone call is not successfully completed, for example by detecting that a busy signal is obtained from the first telephone number, by detecting that a radiotelephone call to the first telephone number is repeatedly initiated during a predetermined time and/or by detecting that radiotelephone calls to multiple telephone numbers corresponding to service providers of the first category are initiated during a predetermined time. If the radiotelephone call is not successfully completed, a listing is obtained at the wireless communicator of at least a second telephone number that corresponds to at least a second service provider of the first category. At least part of the listing is displayed on the wireless communicator, so that a radiotelephone call may be initiated from the wireless communicator in response to selection of the second service provider of the first category. Thus, in the example where the service provider is a physician, if a radiotelephone call to a first physician is initiated and is not successfully completed, a listing of physicians may be displayed on the wireless communicator display so that other physicians may be called.
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