On 7/2/10 9:53 AM, Philippe Laurent wrote:
What are your opinions/experiences regarding the use of good/stable
home broadband connections (real world uplink speed of ~412kb) and
ITSP solutions for one or two lines? Of course, I would have an Atom
driven pc running SipX (gotta experiment somehow), and properly
configured firewall/gateway for traffic (this part I know very well).
Does it work well enough to toss out the local telco? I would rather
not be tied to one of the Skype/Vonage type accounts if I can avoid it.
or, if just for one or two lines, just get a couple voip.ms DID's and
point them to a sip phone or ata. even with sipx you would need a
couple of sip phones or ata's.
the 412K (uplink) speed? what is the download speed? what is the
latency? any latencies > 100ms can cause jitter and echo.
for G.711 you need anywhere from 80K to 128K per channel (depending on
how you count it and who you talk to).
G.729a, maybe 32K to 45K (with less latency. and 0 packet loss. I don't
think G.729a likes packet loss)
your home broadband might 'de QOS' voip in favor of their own, or just
not bother.
911 isn't the same.
and if you have kids playing games or downloading 'educational videos',
all bets are off.
(ps, I don't have a home landline, haven't have one for over 6 years.
Just use a cell phone for each person, was cheaper)
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