[ILUG] Help needed with VOIP & Digital Phone

[Alan Ryan]

Hi Michael,

That's a pretty comprehensive answer - I guess I'll go looking for a wired
connection.

Thanks,
Alan

2009/3/5 Michael Watterson <watty at eircom.net>

> Alan Ryan wrote:
>
>> 2009/3/5 Alan Ryan <alan at codecrunchers.ie>
>>
>>
>>
>>> Hi Joerg,
>>>
>>>
>>> The e270 is up and running, pretty reliable.  Used a softphone today, but
>>> the quality was pretty bad alright.  I could hear them fine, but the
>>> other
>>> side said that there was a delay and terrible echo.  Is it the e270 or
>>> the
>>> o2 connection that you think the problem might lie with?
>>>
>>> Alan
>>>
>>>
>> The problem is Mobile Internet, not specifically O2 or the Modem.
>
> It has 100ms to 2000ms latency, typically 150ms
> High Jitter
> speed varies from 0.050Mbps to  5Mbps +
> Packet loss can be high or OK.
>
> It's inherently unsuitable for VOIP. If more than about 10 people are using
> your sector it's likely to be poor.
> It's possible to get more consistent VOIP on 40Kbps dialup!
>



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