Connecting an ISDN BRI trunk

Last Updated : May 26, 2020 |
Prolog information
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In the U.S., you need to connect a separately purchased NT1 device to each ISDN port that you use to connect an ISDN BRI trunk.
  1. Connect the trunk to any ISDN port on an MM720, MM721, or MM722 media module.
    ADDITIONAL INFORMATION:
    The following images show the ISDN port location on MM720, MM721, and MM722 media modules.
    Figure: MM720 media module ISDN ports
    Figure: MM721 media module ISDN ports
    Figure: MM722 media module ISDN ports