method and apparatus for determining the telephony features assigned to a telephone (us patent...

8/22/2019 Method and apparatus for determining the telephony features assigned to a telephone (US patent 5485511)

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8/22/2019 Method and apparatus for determining the telephony features assigned to a telephone (US patent 5485511)

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8/22/2019 Method and apparatus for determining the telephony features assigned to a telephone (US patent 5485511)

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8/22/2019 Method and apparatus for determining the telephony features assigned to a telephone (US patent 5485511)

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8/22/2019 Method and apparatus for determining the telephony features assigned to a telephone (US patent 5485511)

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8/22/2019 Method and apparatus for determining the telephony features assigned to a telephone (US patent 5485511)

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8/22/2019 Method and apparatus for determining the telephony features assigned to a telephone (US patent 5485511)

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8/22/2019 Method and apparatus for determining the telephony features assigned to a telephone (US patent 5485511)

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8/22/2019 Method and apparatus for determining the telephony features assigned to a telephone (US patent 5485511)

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