<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Verdana; font-size: 10pt; color: #000000'>Your PSTN provider can chose to:<br><ol><li>ignore all PBX settings and apply the billing telephone number</li><li>pass only telephone numbers that you are billed for on that billing telephone number and ignoring all others</li><li>pass any telephone number that you apply (even 0000000000)</li></ol>This typically depends on your agreement. So, if AT&T is telling you that they don't block the calling number, you should be good to go.<br><br>That being said, in Canada only LDNs have directory listings associated with them (hence the acronym: listed directory number), DIDs have no directory listing associated with them. So if you dial 911 with a DID as the calling number, the PSAP gets a blank screen. This is fixed by subscribing to the PSALI service which allows you to update the address associated with DIDs.<br><br>External calling masks are set on the phone, route pattern, route list (or group?), and gateway - in order of trumping. You'll have to check down the line to see if your 911 route patterns, router list, group, etc have an external calling mask set on them.<br><br><br><br>---<br>Lelio Fulgenzi, B.A.<br>Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>"Bad grammar makes me [sic]" - Tshirt<br><br><br>----- Original Message -----<br>From: "John C. Lund" <LUNDJC@uwec.edu><br>To: "cisco-voip@puck.nether.net" <cisco-voip@puck.nether.net><br>Sent: Friday, October 30, 2009 4:49:07 PM GMT -05:00 US/Canada Eastern<br>Subject: [cisco-voip] PSAP sees Billing Telephone Number, not DID associated with phone<br><br>
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<p class="MsoNormal">Hi,</p>
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<p class="MsoNormal">We purchased a PRI (Cisco 2851 Gateway) from ATT, and while
testing I find out the PSAP only sees the BTN when I make a test 911 call.
I called the ATT trouble line and they told me they never block the calling
number and that it is configurable on each PBX.</p>
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<p class="MsoNormal">Are they correct and is it a setting I can change to allow
the PSAP to see individual DIDs? </p>
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<p class="MsoNormal">CUCM 7.02</p>
<p class="MsoNormal">2851 MGCP</p>
<p class="MsoNormal">NM-4VWIC-MBRB / VWIC2-1MFT-T1E1-T1</p>
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<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Consolas;">Thanks,</span></p>
<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Consolas;"> </span></p>
<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Consolas;">John </span></p>
<p class="MsoNormal"><span style="font-size: 10.5pt; font-family: Consolas;"> </span></p>
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