<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Without being completely unhelpful, this all depends on the existing PBX with which you are trying to integrate asterisk. If it has analog extensions, probably easy. If not, probably harder. If it has a T1 interface that you could connect to Asterisk via a cross-over cable, possible, but it all depends.<DIV><BR class="khtml-block-placeholder"></DIV><DIV>Hard saying, not knowing what sort of system you are talking about.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Tom</DIV><DIV><BR><DIV><DIV>On Sep 27, 2005, at 5:00 PM, Paul Conn wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"> <DIV class="Section1"><P class="MsoNormal"><FONT size="2" face="Arial"><SPAN style="font-size:10.0pt; font-family:Arial">Is it possible to use Asterisk and a SIP device to create an off premise extension (OPX) from a traditional PBX? For example: I want to be able to have full internal PBX functions and features but be off site. I know this is easily done IF Asterisk is the PBX but in this case the customer already has an existing PBX and I want to augment it using Asterisk. In the past you would have to order a dry copper loop to wherever it was that you wanted the OPX.</SPAN></FONT></P><DIV><FONT size="2" face="Arial"><SPAN style="font-size:10.0pt; font-family:Arial"> </SPAN></FONT><BR class="khtml-block-placeholder"></DIV><P class="MsoNormal"><FONT size="2" face="Arial"><SPAN style="font-size:10.0pt; font-family:Arial">Thanks for any help.</SPAN></FONT></P><DIV><FONT size="2" face="Arial"><SPAN style="font-size:10.0pt; font-family:Arial"> </SPAN></FONT><BR class="khtml-block-placeholder"></DIV><P class="MsoAutoSig"><FONT size="3" face="Arial"><SPAN style="font-size:12.0pt; font-family:Arial">Paul Conn</SPAN></FONT></P><DIV><FONT size="3" face="Times New Roman"><SPAN style="font-size: 12.0pt"> </SPAN></FONT><BR class="khtml-block-placeholder"></DIV> </DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">--Bandwidth and Colocation sponsored by Easynews.com --</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Asterisk-Users mailing list</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="mailto:Asterisk-Users@lists.digium.com">Asterisk-Users@lists.digium.com</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">To UNSUBSCRIBE or update options visit:</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-converted-space"> </SPAN><A href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</A></DIV> </BLOCKQUOTE></DIV><BR></DIV></BODY></HTML>