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Re: Charter Voip advice

I can't speak as far as what they require contractors to do for installation. I beleive at least in this area we only do VoIP installs inhouse. I'm a headend tech for Charter and have been out of the installer loop for about 10years. Here is some technical info on the VoIP.

Uses different upstream/downstream frequencies from the HSD
256qam down/ 16qam up

Arris MTA (cable modem)

VoIP Codec G.711

Required testing after installation:

Signal leakage Test
Ingress Test
Input to modem -12dB to +12dB (as close to 0 as possible)
Transmit level around 40dB to 50dB
MOS(Mean Opinion Score) 4.0
R-Factor 90
Latency 100ms
Jitter 20ms

The techs in this area are using Trilithic 860DSPi for most of the testing.


Scott

This is CABL.com posting #175067. Tiny Link: cabl.co/mTHP
Posted in reply to: Charter Voip advice by oldschooldbstech
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