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Home › Methods and apparatus for performing primary rate interface (PRI) B-channel direct connectivity in an integrated services digital network (ISDN) communications system

Methods and apparatus for performing primary rate interface (PRI) B-channel direct connectivity in an integrated services digital network (ISDN) communications system

US Patent 6549535 · Granted Apr 15, 2003

Estimated economic value: $245,000 ⓘ

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