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DSX-1 Support
Three Music on Hold inputs
The TA 904 2nd Gen 4212904L4 offers an all in one package that adds SIP-gateway capabilities
4200624L1 Gateway
Adtran Atlas 550 AC Base Unit 1200305L2 with T1 Description:
Nortel Meridian D-Channel PRI Board NTAK93AB Modules DSX-1 SupportNortel Meridian D Channel DCHI D CH PRI Board NTAK93AB The D Channel Handler Interface DCHI Card provides the transfer of layer three sign information between two adjacent network switches with a minimum of one for each PRI link. If there is more than one PRI link connected to the same end location, the DCHI can support a maximum of eight PRI connections.
