<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">This seems like a STIR/SHAKEN event... could be wrong here but this was just enforced recently.<div class=""><br class=""></div><div class="">Here's one of the many threads that have taken place: <a href="https://www.mail-archive.com/voiceops@voiceops.org/msg05700.html" class="">https://www.mail-archive.com/voiceops@voiceops.org/msg05700.html</a></div><div class=""><br class=""></div><div class="">"Mary Lou" has had some of the best content and explanations on this subject. Searching the archives for her threads may help you here as she has been quite the goto for information on this subject. Very appreciated.<br class=""><br class=""><blockquote type="cite" class="">On Jul 13, 2023, at 14:34, Ross Tajvar via VoiceOps <<a href="mailto:voiceops@voiceops.org" class="">voiceops@voiceops.org</a>> wrote:<br class=""><br class="">Hi all,<br class=""><br class="">I have an asterisk PBX for personal/business use. I use Flowroute for both origination and termination.<br class=""><br class="">Recently I've started needing to make some international calls (specifically mostly to the UK, but also some other places in Europe and Australia). There've been a few numbers where completion is very hit-or-miss, and a few that seem not to work at all (in both cases I get a SIP 500 back from the carrier).<br class=""><br class="">I'm wondering if this is a carrier issue - maybe Flowroute just has low-quality routes to some destinations? I'd like to try other carriers, and ideally keep a second one as a fallback, but I'm not sure who's out there with no commit.<br class=""><br class="">Looks like voip.ms is one option. Does anyone have any other suggestions?<br class=""><br class="">Thanks,<br class="">Ross<br class="">_______________________________________________<br class="">VoiceOps mailing list<br class=""><a href="mailto:VoiceOps@voiceops.org" class="">VoiceOps@voiceops.org</a><br class="">https://puck.nether.net/mailman/listinfo/voiceops<br class=""></blockquote><br class=""><div class=""><br class="">-- <br class=""><br class="">J. Hellenthal<br class=""><br class="">The fact that there's a highway to Hell but only a stairway to Heaven says a lot about anticipated traffic volume.<br class=""><br class=""><br class=""><span><img apple-inline="yes" id="07323415-E013-40F1-8FBE-FE28A72B1B69" src="cid:DBFF14B0-8769-45D8-8DD3-3D8ABC5038C4" class=""></span><br class=""></div><br class=""></div></body></html>