Used Cisco 2600 Series -
Channelized T1/E1 and ISDN Network Module

Part # NM-8B-U

Product Description: 8-Port ISDN-BRI with NT-1 Network Module; 4- and 8-Port ISDN BRI network modules: enable you to query the network module; have traps to monitor the network module; integrate with CiscoWorks and CiscoView management tools; support the ISDN MIB; support plain old telephone service (POTS) call redirection to internal digital modems; support four or eight ISDN BRI ports; do not allow the ISDN S-bus to be shared; support the 128 KB ISDN leased line, but not the 144 KB leased line; and support modem dialup with the NM-DM Digital Modem modules in Cisco IOS® Version 12.0(2)XC and later.

 

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