<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br><div><div>On Dec 19, 2010, at 7:35 PM, Hendrik Schweppe wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi Conrad,<div><br></div><div>I guess this is the same problem I experienced. In fact, it is a problem</div><div>of Blink with your network's firewall configurations (at least for me).<br><div><div><br></div><div>Blink refuses to use the nameservers provided via DHCP but directly</div><div>queries your registrar's DNS servers. This fails for a lot of firewalls as they don't</div><div>allow direct DNS requests.</div><div><br></div><div>I asked for a changed behavior, but the response I got was that many local</div><div>routers (i.e. cheap DSL routers) can't handle SRV requests and thus blink</div><div>would not go for the configured DNS server, unfortunately.</div></div></div></div></blockquote><div><br></div><div>We did change this behavior.</div><div><br></div><div>The latest version first tries the local resolvers provided by DHCP, if they fail to probe some known NAPTR and SRV records from <a href="http://sip2sip.info">sip2sip.info</a> domain we use public Google recursive resolvers instead. If none work than of course is little DNS can do for you. Do both resolvers fail?</div><div><br></div><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><div>Hope this helps you to narrow down the problem. Try</div><div>"host -t SRV _sip._udp.voip.tierzero.net <a href="http://ns1.tierzero.net/">ns1.tierzero.net</a>" and see if you</div><div>get a response or whether it is firewalled.</div><div><br></div><div><br></div><div>Best,</div><div>Hendrik</div><div><br></div><div>PS: See "<span class="Apple-style-span" style="font-size: 12px; "><b>Re: [Blink] Fwd: sip: dns queries</b>" for the original thread (June 2010).</span></div><div><br></div><div>On Dec 18, 2010, at 7:33 PM, Conrad Heiney wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Hi:<br><br>When I try to use Blink with the latest release it fails to find the<br>SRV record for my provider. Example log:<br><br>2010-12-18 10:30:57 Account(<a href="mailto:'3107841375a@voip.tierzero.net">'3107841375a@voip.tierzero.net</a>') failed<br>to register: DNS lookup failed: Timeout in lookup for routes for SIP<br>URI <a href="sip:voip.tierzero.net">sip:voip.tierzero.net</a> (retrying in 9.11 seconds)<br>2010-12-18 10:30:57 Error: The account <a href="mailto:3107841375a@voip.tierzero.net">3107841375a@voip.tierzero.net</a><br>failed to register(DNS lookup failed: Timeout in lookup for routes for<br>SIP URI <a href="sip:voip.tierzero.net">sip:voip.tierzero.net</a>)<br>2010-12-18 10:31:21 Account(<a href="mailto:'3107841375a@voip.tierzero.net">'3107841375a@voip.tierzero.net</a>') failed<br>to register: DNS lookup failed: Timeout in lookup for routes for SIP<br>URI <a href="sip:voip.tierzero.net">sip:voip.tierzero.net</a> (retrying in 18.67 seconds)<br>2010-12-18 10:31:21 Error: The account <a href="mailto:3107841375a@voip.tierzero.net">3107841375a@voip.tierzero.net</a><br>failed to register(DNS lookup failed: Timeout in lookup for routes for<br>SIP URI <a href="sip:voip.tierzero.net">sip:voip.tierzero.net</a>)<br><br>However, other softphones do not have this problem. Additionally, a<br>command line lookup works:<br><br>tertius:~ conradh$ host -t SRV _sip._udp.voip.tierzero.net<br>_sip._udp.voip.tierzero.net has SRV record 0 0 5060 <a href="http://proxy01.voip.tierzero.net/">proxy01.voip.tierzero.net</a>.<br><br>If I set the proxy manually then Blink connects fine.<br><br>What could be the problem?<br><br>thanks,<br><br>Conrad<br><br>-- <br>Conrad Heiney, Senior System Administrator<br>Tierzero, Inc.<br><a href="mailto:conrad@tierzero.com">conrad@tierzero.com</a> | 213 784 1375<br>_______________________________________________<br>Blink mailing list<br><a href="mailto:Blink@lists.ag-projects.com">Blink@lists.ag-projects.com</a><br><a href="http://lists.ag-projects.com/mailman/listinfo/blink">http://lists.ag-projects.com/mailman/listinfo/blink</a><br></div></blockquote></div><br></div></div>_______________________________________________<br>Blink mailing list<br><a href="mailto:Blink@lists.ag-projects.com">Blink@lists.ag-projects.com</a><br>http://lists.ag-projects.com/mailman/listinfo/blink<br></blockquote></div><br></div></body></html>