<p>Doesn't matter how good VoIP is, there is no comparison with a real physical line. For absolutely 0 tolerance, guaranteed voice quality and 99.999% uptime, a physical T1 is the only solution.</p>
<p>However as it is becoming an increasing trend in North American market, including many major and big (careless) corporations, to switch to cheap and crap voice quality and let the callers suffer, so if the customer doesn't care about quality, reliability and stability, SIP only solution should just be perfectly fine. Poor ordinary public is after all made to get used to it anyways.<br>
</p>
<p>Zeeshan A Zakaria</p>
<p>--<br>
<a href="http://www.ilovetovoip.com">www.ilovetovoip.com</a><br>
<a href="http://www.pbxforall.com">www.pbxforall.com</a> (beta)</p>
<p><blockquote type="cite">On 2010-10-30 4:50 AM, "David Knell" <<a href="mailto:dave@3c.co.uk">dave@3c.co.uk</a>> wrote:<br><br>Hi Brian,<br>
<p><font color="#500050"><br>> Gotta client that is moving to a VoIP PBX. Will need 10 concurrent<br>> calls with ability to grow ...</font></p>Option (a) gives you diversity - ask yourself just how bad it'd be if<br>
their phone system went down because their DSL line wasn't working, and<br>
then balance this against the extra cost of the PRI.<br>
<br>
--Dave<br>
<br>
<br>
> --<br>
<p><font color="#500050">> _____________________________________________________________________<br>> -- Bandwidth and Colocatio...</font></p>David Knell, Director, 3C Limited<br>
T: +44 20 3298 2000<br>
E: <a href="mailto:dave@3c.co.uk">dave@3c.co.uk</a><br>
W: <a href="http://www.3c.co.uk" target="_blank">http://www.3c.co.uk</a><br>
<font color="#888888"><br>
<br>
--<br>
</font><p><font color="#500050">_____________________________________________________________________<br>-- Bandwidth and Colocation Pr...</font></p></blockquote></p>