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Re: [PLUG] VOip
Anyone using commercial VOip? I was looking at the AT&T site. They claim
they need 90Kb Up/down BW/line/call. That really sounds excessive. What is
this super high fidelity phone connections! I would think they could get
by with a lot less then that even with overhead. Given a 3K voice channel
you should be able to sample at 12-16K, Add overhead and control.. so we
double that... 32K ... what the heck is the rest? I think verizon breaks a
T1 down into 23 voice channels / 1 control, each 48K. That always seemed
like a waste of BW to me.
Actually you probably do need that much bandwidth for some calls and to
help prevent what I call the "echo chamber" effect. Remember, telephone
calls are really two sets of audio signals, one from you and one from
the individual you're talking to. If you limit the audio to let's say
3Khz like phones used to, the audio often doesn't sound right
Anyhow it might make sense to change a DSL lines analog voice number to
absolute minimum service and get one of these all inclusive digital voice
packages. You can get everything under the sun for 29ドル and there are many
less expensive packages. The difference is that there are no hidden
charges like wireline or wireless where they hit you for darn near 20% of
your bill in hidden costs.
There are cheaper services like Lingo, Packet8 and Vonage. The only
downside is that to really use them throughout a house, you need
wireless phones with more than one phone able to access the same
service. It's not fun to be let's say on the 2nd floor and the only
phone connected is on the first. One hint though, get 5.8Ghz phones if
you do this. Also Verizon is offering VOIP too over broadband in case
you're not sick of them enough to avoid any additional services from
Verizon.
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