Hi Mark,<div><br></div><div> Thanks for the reply. So if I understand correctly, I am thinking too big. K.I.S.S as some say.</div><div><br></div><div>The existing PBX's are extremely old, so breakdowns & phones are a problem and we don't want to repair anymore. In the suggested scenario would you recommend replacing the existing hardware (as they breakdown) with IP phones and Asterisk at each office then or just ditch the Asterisk and have all the phones register to OpenSIPS directly at HQ? My concern is call quality with 110ms to HQ then 75ms to provider = 185ms from furthest office, is this still not an issue?</div>
<div><br></div><div>Thanks,</div><div><br></div><div>Skyler<br><br><div class="gmail_quote">On Sat, Jan 15, 2011 at 4:55 PM, Mark Sayer <span dir="ltr"><<a href="mailto:datapipes@avtb.co.nz">datapipes@avtb.co.nz</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Here is one suggestion:<br>
- single OpenSIPS & Asterisk at central office<br>
- use Asterisk as gateway to PSTN (for all offices)<br>
- connect remote office PBXs to central office using using multi-port<br>
FXS gateways<br>
- 110ms is no problem<br>
- single system admin point, single cpu, 200 or more concurrent calls<br>
- no admin, low cost at remote offices<br>
<br>
Mark<br>
<div><div></div><div class="h5"><br></div></div></blockquote></div></div>