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Home › Emulation of analog modem signaling over IDSN for translation-less interoperability with PSTN based H.324 system

Emulation of analog modem signaling over IDSN for translation-less interoperability with PSTN based H.324 system

US Patent 5961589 · Granted Oct 5, 1999

Estimated economic value: $132,199,000 ⓘ

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