Intro to Telephony, Call Routing and VoIP

I came across this great little video series the other day by elithecomputerguy and though it was well worth a share.

We are in the process of releasing a superb new IP telephony / unified comms product at work and I found the following videos most useful in augmenting our training.

It goes right through the technologies from PSTN, PBX etc, to the latest VoiP systems.

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