Hello Matthew,<br><br>CER will work in the UK<br><br>CER is compatible with any emergency number (for example, 999 in UK, E1-1-2 across Europe)
<br><br><br>Cris<br><br><div class="gmail_quote">2009/6/26 Matthew Melbourne <span dir="ltr"><<a href="mailto:matt@melbourne.org.uk">matt@melbourne.org.uk</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;">
I am interested in finding out what others do for handling emergency calls<br>
(specifically 999/112 in the UK), in centralised multi-site deployments. In<br>
the UK, DNs are registered on a database which provides the DN-to-address<br>
mapping. With Extension Mobility, users' numbers may move between sites so<br>
can't accurately reflect location. I have used one technique where the<br>
Device CSS is used to point towards a unique 'emergency' partition which<br>
contains a Route Pattern which presents a specific, registered, DN for that<br>
site by manipulating the outbound CLI (and the Line CSS effectively manages<br>
the Class of Service). However, for a large number of sites this quickly<br>
becomes a management issue, and any phone moves must have their Device CSS<br>
updated accordingly.<br>
<br>
A similar idea could be used for sending emergency calls out from a local<br>
FXO port at each site (rather than through centrally-located trunks).<br>
Similar CSS/Partition arrangements still may be required, although this may<br>
be easier to implement achieve with the use of local route groups in CUCM<br>
7.x.<br>
<br>
Are there any other possible solutions; can CER operate in a non-US<br>
environment?<br>
<br>
Cheers,<br>
<br>
Matt<br>
<br>
--<br>
Matthew Melbourne<br>
<br>
<br>
<br>
<br>
_______________________________________________<br>
cisco-voip mailing list<br>
<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<a href="https://puck.nether.net/mailman/listinfo/cisco-voip" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a><br>
</blockquote></div><br>