[Asterisk-Users] VoIP experiences with Cable and DSL

[Steve Szmidt]

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Hi,

A thought occurred to  me;

Background;
In the early days of cable, the cable people seemed clueless to things like 
over selling bandwidth. But as time went along they got it better and better 
under control. 

Of course their natural competitor, DSL, created a bigger demand for them to 
get things under control.

Today cable is often giving 3-4Mb down and 384Kb up, and DSL is usually 768Kb 
down and 384Kb up. (At least in my area.)

Under normal Internet use all we really care about is downspeed. So cable is 
providing 68.27Kb/$-91.02Kb/$ and DSL 26.48Kb/$ making cable the easy choice.

But with VoIP it has to go both ways and things like latency can easily become 
a big issue. (I have cable and it seems that I get sound degradations much 
easier than I'm comfortable with, yes it's a shared connection with 
occational POP traffic. Also, I'm only talking about dedicated network 
connections for final implementation.)


So, what I realized was that I have no real data to operate with is, and has 
anyone done an evaluation of typical needs which shows DSL better suited for 
VoIP? F.ex. cable shares the pipe and unless QoS is implemented can 
reasonably have more traffic issues than DSL. 

This could easily make DSL to be better suited as focus shifts to up speed. 
Of course DSL has a narrow maximum length tolerance and so that can also be an 
issue (bad implementation).

For a few years now I've operated with cable as the obvious choice, at least 
in my area where RoadRunner really built up a good network. It could be that 
for nation wide implementation VoIP really should be on DSL. (Unless of 
course you need a big pipe where a split T is the only higher option.)

- -- 
Steve

"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
                                Benjamin Franklin

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