| 70 |
| What (2) |
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| ü | Lightweight |
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| ü | Interoperable
with other service discovery protocols |
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| ü | Tailored to
Bluetooth's extremely dynamic |
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| environment |
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| – | Can determine
that services are unavailable based on RF |
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| proximity |
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| ü | Does not provide access
to services |
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| – | Must be provided
by a non-SDP protocol |
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| ü | No event-driven
notification when service becomes |
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| unavailable |
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| – | But polling is
possible |
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| ü | Does not provide
billing facilities |
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