<br><br><div class="gmail_quote">2009/9/29 Alec Davis <span dir="ltr"><<a href="mailto:sivad.a@paradise.net.nz">sivad.a@paradise.net.nz</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
When I say no reliable internet, some days it's good, others it's not, so to<br>
try to push a call over an IAX trunk is going to fail.<br>
<br>
For the choice of providers, when it comes to a business with branches<br>
around the country (NZ is small enough) we'd choose one provider.<br>
<br>
Subaddress is not limited to PRI, it's also available on BRI lines.<br>
<br>
We have 2 PRI connected sites and 1 BRI ISDN site, all 3 with asterisk, and<br>
non overlapping extension dial plans.<br>
SITE A: 8500-8599<br>
SITE B: 8800-8899<br>
SITE C: 8300-8399<br>
<br>
The flow goes something like this:<br>
Site A:<br>
8501 dials 8801<br>
dialplan sets CallingSubaddr to 8501<br>
dialplan calls SITE B's main number (perhaps 09 1234567) with<br>
CalledSubaddr set to 8801.<br>
<br>
Site B:<br>
the main number (09 1234567) is processed by asterisk<br>
dialplan sees that CallingSubaddr is set to 8501, so sets CallerId<br>
to 8501<br>
dialplan sees that CalledSubaddr was set to 8801 so dials 8801.<br>
<br>
Regarding POTS it will not work, but some ISDN PABX's have the dialling<br>
concept of dialling a '*' as the separator between Number and SubAddress and<br>
'#' as end of dialling.<br></blockquote><div><br>Looking at thread back, I wondered if this Subaddress feature :<br>A- either must be specifically allowed and actived by your Telco<br>B- or is an ISDN requirement and you don't need to order anything to your provider.<br>
<br>In case A, how does the activation and recurrent fees compare to DID costs ?<br><br>Cheers<br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<font color="#888888"><br>
Alec Davis</font><br></blockquote></div>