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<br>
We too have staff in Manila. The phones in our Manila office
(Eastern Telecom) and also staff homes (PLDT) talk just fine to
our Sydney PBX.<br>
<br>
Our SIP server is open to the world, but there's nothing wrong
with that as long as you have appropriate security in place
(strong passwords, fail2ban, etc).<br>
<br>
Matt.<br>
<br>
On 13/11/2015 12:12 p.m., Nick Stallman wrote:<br>
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We have two staff in the Philippines
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to extend our phone support hours.<br>
<br>
We haven't really had any issues except them using the same
residential connection at the same time.<br>
We solved that one by one of them using SIP and the other using
IAX. IAX might solve some of your issues if you can use it.<br>
<br>
Our VoIP server is internet accessible however so we don't have
dynamic IP / VPN issues.<br>
<br>
<div class="moz-cite-prefix">On 13/11/15 09:59, Luke Iggleden
wrote:<br>
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Hi Noggers,<br>
<br>
We've recently been tasked with assisting getting SIP running
from Australia to the
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Philippines for remote staff workers on DSL tails. SIP server is
in Sydney, behind Vocus transit.<br>
<br>
It appears that CGNAT is a hurdle, plus 350-450ms of latency,
and the inability to obtain a static IP on a 'residential' grade
tail.<br>
<br>
We're now using Fortigate SSL VPN tunnel as a solution, and just
routing the SIP server down the split tunnel, but not sure if
this really makes the situation worse or not, and I'm looking to
hear other ideas and battle stories!<br>
<br>
What are people using out there to deliver a reliable service
that sounds good? -plus:<br>
<br>
- Get around CGNat RTP Audio/SIP transport issues<br>
- Ensure SIP server is not open to the world due to dynamic IP's
connecting<br>
- Keep the bandwidth requirements to a minimum - Assume low
speed DSL (2M/512k)<br>
<br>
Direct carrier links are not a possibility unfortunately as the
staff all work from home offices.<br>
<br>
<br>
<br>
Cheers,<br>
<br>
Luke<br>
<br>
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Agentpoint Pty Ltd <br>
The Real Estate Web Developers<br>
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