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    <font size="+1">The official NPAC database is always up to date and
      is available from Neustar (for now) commercially on a per dip or
      per monthly charge.  You can pull down the updates every 15
      minutes to ensure the data is up to date for you network or you
      can just send them a dip for every call (Invite with 302 return).<br>
      <br>
      The NPAC members can get a nightly pull for the DB which means it
      is up to 24 hours of date, but normally that is accurate enough
      for wholesale providers.  Due to the large liability issues, for
      your application you should go with the 15 minute updates or
      direct Neustar dips.<br>
      <br>
      ~Glen<br>
      <br>
    </font><br>
    <div class="moz-cite-prefix">On 8/18/2015 3:04 PM, Carlos Alvarez
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAEu0Vi1-CwY52Pk2xJeR7Oen19ZjWAPe9_NFBR_89HL-eCOm4Q@mail.gmail.com"
      type="cite">
      <div dir="ltr">I'm going to answer a number of messages at once,
        because there were quite a few replies (thanks to all of you).
        <div><br>
        </div>
        <div>NPA-NXX filtering is already being done, and is useless. 
          So they also employ list scrubbing based on what appears to be
          old/cached LNP info or dips, and that is also insufficient
          both legally and practically.  The data sources being used in
          the industry now do not appear to comply with the law.</div>
        <div><br>
        </div>
        <div>For anyone who is saying that you can't determine a cell
          phone due to LNP, you are wrong.  Please look up these terms
          and you will see it's very possible:  LERG, LRN, OCN  As far
          as cell phones that are turned into "home" service, that's
          fine, we don't care about false positives.  We just need to
          make sure that a cell number is never dialed by mistake.  And
          the law allows a 15 day grace period from porting.</div>
        <div><br>
        </div>
        <div>On the "guarantee" that isn't something we'd provide, what
          I mean was simply a data source that is always accurate.  Such
          as LRN-LERG testing for every call.  The customer will accept
          ultimate responsibility.</div>
        <div><br>
        </div>
        <div>Some people recommended third-party services both on and
          off the list.  The one concern there is again, accuracy.  If
          the list scrubbers can't get it right...then any third party
          is suspect.  Are they using cached data?  Or acquiring data
          from dubious sources?  I don't know.</div>
        <div><br>
        </div>
        <div><br>
        </div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr">On Tue, Aug 18, 2015 at 2:31 PM Glen Gerhard <<a
            moz-do-not-send="true" href="mailto:ggerhard@sansay.com"><a class="moz-txt-link-abbreviated" href="mailto:ggerhard@sansay.com">ggerhard@sansay.com</a></a>>
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div bgcolor="#FFFFFF" text="#000000"> <font size="+1">Carlos,<br>
              <br>
              you can get a list of all NPA-NXXs that are used by cell
              carrier and use that as a starting point.  Then add to
              that the list of LRNs used by call carriers which may or
              may not be included in the first list.<br>
              <br>
              Then you need to dip your traffic and compare the DNIS/LRN
              to the combined list.  If the number is ported the LRN
              will match the list.  If the number is not ported and is
              cellular it will be in the list of NPA-NXX.  If not
              cellular it won't match the list.<br>
              <br>
              Either way if there is a match to the list then you can
              reject the call for that customer.  (I believe you are a
              Sansay customer so you can set up a route table with the
              combined list and then use it as the primary route table
              for those customers and then link to normal tables.  I can
              have our support team put together the list of current
              NPA-NXX but you'll need a LERG6 subscription to keep it
              current).<br>
              <br>
              Good luck,<br>
              <br>
              ~Glen<br>
              <br>
              PS this message is not copyrighted nor confidential ;-)<br>
              <br>
              <br>
              <br>
              <br>
            </font></div>
          <div bgcolor="#FFFFFF" text="#000000"><br>
            <div>On 8/18/2015 2:14 PM, Erik Flournoy wrote:<br>
            </div>
            <blockquote type="cite">
              <div dir="ltr">Derek, 
                <div><br>
                </div>
                <div>Is actually right. Legislation that blocks a
                  company from auto dialing a number based on it being a
                  cell phone or landline is extremely difficult to
                  prosecute. Straight talk has a home service that
                  essentially uses a wireless carrier backbone. I can
                  pickup the base plug it in at my neighbors house or
                  better yet put it in my car on a power inverter and
                  wah lah my home phone is what it truly is a cell phone
                  with a 110-220v power supply.  Number Portability
                  would make wireline and wireless number location
                  nearly impossible. Manual dialing would be the only
                  way to prevent an auto dialer issue. </div>
              </div>
              <div class="gmail_extra"><br clear="all">
                <div>
                  <div>
                    <div dir="ltr">
                      <div>
                        <div dir="ltr">Erik Flournoy
                          <div>808-426-4527<br>
                            301-218-7325
                            <div><br>
                            </div>
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                            </div>
                          </div>
                        </div>
                      </div>
                    </div>
                  </div>
                </div>
                <br>
                <div class="gmail_quote">On Tue, Aug 18, 2015 at 11:00
                  AM, Derek Andrew <span dir="ltr"><<a
                      moz-do-not-send="true"
                      href="mailto:Derek.Andrew@usask.ca"
                      target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:Derek.Andrew@usask.ca">Derek.Andrew@usask.ca</a></a>></span>
                  wrote:<br>
                  <blockquote class="gmail_quote" style="margin:0 0 0
                    .8ex;border-left:1px #ccc solid;padding-left:1ex">
                    <div dir="ltr">Isn't it impossible to decide if a
                      number is a cell phone or a land line because of
                      local number portability?<br>
                      <br>
                      <div class="gmail_extra"><br>
                        <div class="gmail_quote"><span>On Tue, Aug 18,
                            2015 at 2:34 PM, Matthew Crocker <span
                              dir="ltr"><<a moz-do-not-send="true"
                                href="mailto:matthew@corp.crocker.com"
                                target="_blank">matthew@corp.crocker.com</a>></span>
                            wrote:<br>
                          </span>
                          <blockquote class="gmail_quote"
                            style="margin:0 0 0 .8ex;border-left:1px
                            #ccc solid;padding-left:1ex">
                            <div style="word-wrap:break-word"><span>
                                <div><br>
                                </div>
                                <div><br>
                                </div>
                                <div>Depending on your switch you should
                                  be able to build a profile for the
                                  customer and reject calls going to
                                  cell phone LRN providers.  </div>
                                <div><br>
                                </div>
                                Personally, I wouldn’t take on the
                                liability of guaranteeing their
                                auto-dialer only calls landlines.   You
                                would end up being sued if you make a
                                mistake.  IMHO, let them manually dial
                                or find a list scrubbing company that
                                actually works.<br>
                                <div>
                                  <div
style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word"><br>
                                    —</div>
                                  <div
style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word"><br>
                                  </div>
                                  <div
style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">Matthew

                                    Crocker<br>
                                    President - Crocker
                                    Communications, Inc.<br>
                                    Managing Partner -
                                    Crocker Telecommunications, LLC<br>
                                    E: <a moz-do-not-send="true"
                                      href="mailto:matthew@corp.crocker.com"
                                      target="_blank">matthew@corp.crocker.com</a><br>
                                    E: <a moz-do-not-send="true"
                                      href="mailto:matthew@crocker.com"
                                      target="_blank">matthew@crocker.com</a><br>
                                    <br>
                                  </div>
                                </div>
                                <br>
                              </span>
                              <div>
                                <blockquote type="cite"><span>
                                    <div>
                                      <div>
                                        <div>On Aug 18, 2015, at 4:30
                                          PM, Carlos Alvarez <<a
                                            moz-do-not-send="true"
                                            href="mailto:caalvarez@gmail.com"
                                            target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:caalvarez@gmail.com">caalvarez@gmail.com</a></a>>

                                          wrote:</div>
                                        <br>
                                      </div>
                                    </div>
                                  </span>
                                  <div>
                                    <div>
                                      <div>
                                        <div>
                                          <div>
                                            <div dir="ltr">I have a
                                              customer in market
                                              research who is legally
                                              required to manually dial
                                              calls to cell phones. 
                                              Right now they are
                                              considering abandoning all
                                              of their auto/predictive
                                              dialer software and going
                                              to manual dial for
                                              everything, because the
                                              list-scrubbing services
                                              have been shown to be
                                              inaccurate.  There are
                                              extreme penalties for
                                              auto-dialing a cell phone,
                                              and "best effort" is NOT a
                                              defense to this, at all. 
                                              For example, Gallup just
                                              settle a claim for $12M.
                                              <div><br>
                                              </div>
                                              <div>So they need a
                                                totally accurate way to
                                                prevent a cell phone
                                                call from originating
                                                from their dialer.  The
                                                only thing I can think
                                                of is some sort of LRN
                                                dip +
                                                LRN-to-carrier-type
                                                response.  One of their
                                                people talked to
                                                Neustar, but didn't get
                                                great answers because he
                                                doesn't really
                                                understand telephony. 
                                                Before I get in touch
                                                with Neustar, I thought
                                                I'd see if people here
                                                have some ideas.</div>
                                              <div><br>
                                              </div>
                                              <div>If you provide a
                                                commercial product for
                                                this, please feel free
                                                to tell me so on or off
                                                list, the customer is
                                                willing to pay for the
                                                service and we're open
                                                to all options.  I don't
                                                have a budget number yet
                                                but manual dialing is
                                                going to cost them quite
                                                a bit for some types of
                                                studies.</div>
                                              <div><br>
                                              </div>
                                            </div>
                                          </div>
                                        </div>
                                      </div>
                                    </div>
                                    <span>
_______________________________________________<br>
                                      VoiceOps mailing list<br>
                                      <a moz-do-not-send="true"
                                        href="mailto:VoiceOps@voiceops.org"
                                        target="_blank">VoiceOps@voiceops.org</a><br>
                                      <a moz-do-not-send="true"
                                        href="https://puck.nether.net/mailman/listinfo/voiceops"
                                        target="_blank">https://puck.nether.net/mailman/listinfo/voiceops</a><br>
                                    </span></div>
                                </blockquote>
                              </div>
                              <br>
                              <span><font color="#888888"> </font></span></div>
                            <span><font color="#888888"> </font></span></blockquote>
                        </div>
                        <span><font color="#888888"><br>
                            <br clear="all">
                            <br>
                            -- <br>
                            <div>
                              <div dir="ltr">
                                <div>
                                  <div dir="ltr">Copyright 2015 Derek
                                    Andrew (excluding quotations)<br>
                                    <br>
                                    University of Saskatchewan<br>
                                    <br>
                                    Typed but not read.<br>
                                    <br>
                                    <img moz-do-not-send="true"
                                      src="http://homepage.usask.ca/dfa878/uofs.gif"
                                      height="15" width="200"><br>
                                  </div>
                                </div>
                              </div>
                            </div>
                          </font></span></div>
                    </div>
                    <br>
                    _______________________________________________<br>
                    VoiceOps mailing list<br>
                    <a moz-do-not-send="true"
                      href="mailto:VoiceOps@voiceops.org"
                      target="_blank">VoiceOps@voiceops.org</a><br>
                    <a moz-do-not-send="true"
                      href="https://puck.nether.net/mailman/listinfo/voiceops"
                      rel="noreferrer" target="_blank">https://puck.nether.net/mailman/listinfo/voiceops</a><br>
                    <br>
                  </blockquote>
                </div>
                <br>
              </div>
              <br>
              <fieldset></fieldset>
              <br>
              <pre>_______________________________________________
VoiceOps mailing list
<a moz-do-not-send="true" href="mailto:VoiceOps@voiceops.org" target="_blank">VoiceOps@voiceops.org</a>
<a moz-do-not-send="true" href="https://puck.nether.net/mailman/listinfo/voiceops" target="_blank">https://puck.nether.net/mailman/listinfo/voiceops</a>
</pre>
            </blockquote>
            <br>
          </div>
          _______________________________________________<br>
          VoiceOps mailing list<br>
          <a moz-do-not-send="true" href="mailto:VoiceOps@voiceops.org"
            target="_blank">VoiceOps@voiceops.org</a><br>
          <a moz-do-not-send="true"
            href="https://puck.nether.net/mailman/listinfo/voiceops"
            rel="noreferrer" target="_blank">https://puck.nether.net/mailman/listinfo/voiceops</a><br>
        </blockquote>
      </div>
    </blockquote>
    <br>
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