CCNA Voice 640-461- Part 2 historic voice- understanding analogue connectivity
Historic Voice : Understanding Analogue Connectivity
Analogue signaling: loop and ground start
Call Signaling
Supervisory signaling
Information signaling
Address signaling
Historic Voice : Understanding Analogue Connectivity
Analogue signaling: loop and ground start
Call Signaling
Supervisory signaling
Information signaling
Address signaling
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