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Cisco Voice

https://www.cisco.com/c/en/us/support/docs/voice/voice-quality/30141-symptoms.html#anc14 https://www.cisco.com/c/en/us/support/docs/voice/digital-cas/14007-net-signal-control.html DSP Debuging...

Adtran Netvanta 838

  Built a custom patch cable with two 50 pin champ connectors (set for pairs 1 thur 8) and krone disconnect modules in the middle which allows you to manually busyout/fault a line using a small slice of plastic It could be used to tap into and out of the...

Cisco Digital Modems Module

    Its all about Channelized E1….. And the Modem CSM MICA (Modem ISDN channel aggregation)   c3725 isdn switch-type primary-net5 ! controller E1 1/0 pri-group timeslots 1-31 ! interface Serial1/0:15 no ip address encapsulation hdlc isdn...