It’s been a rough day for SIP. Out of nowhere my Asterisk server stopped working properly. I suspected the SonicWALL and began a 2 hour long process of generating the configuration from factory defaults. I did this because a SonicWALL technician in his Indian accent chastised me for loading Beta firmware without having good backups. He blamed this for having a malfunctioning CFS policy. Anyway, I loaded new configuration and as it was it had no effect on the symptoms. Specifically, there was 1-way or no audio and the call disconnected right at about 30 seconds. <\/p>\n
Every Asterisk forum and support post always describes the cause of this issue to be bad NAT-ing. However nothing had changed. I loaded the same configuration into the SonicWALL as was before the wipe. <\/p>\n
Ultimately after much searching I came across a working solution. I added RTP ports UDP 10000-20000 to the firewall. Also I opened up the firewall to All incoming connections instead of my SIP trunk providers IP address. Possibly they changed the IP address for the media gateway but only a call to tech support would determine that. Fortunately I’ll do that tomorrow. <\/p>\n
Side note that I also went through a couple hours worth of free SMTP quota in about 3 seconds. I turned on email alerts on the default SonicWALL configuration. I also had Geo-IP filter engaged for a measly few 12 of the baddest countries in the malware world. Let’s just say it’s a dangerous Internet out there. My SonicWALL sent an email every time someone tried to connect and was blocked yet the Geo-IP filter. <\/p>\n","protected":false},"excerpt":{"rendered":"
It’s been a rough day for SIP. Out of nowhere my Asterisk server stopped working properly. I suspected the SonicWALL and began a 2 hour long process of generating the configuration from factory defaults. I did this because a SonicWALL technician in his Indian accent chastised me for loading Beta firmware without having good backups. … Continue reading “Don’t Forget the RTP Stream!”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[4,3],"tags":[],"class_list":["post-129","post","type-post","status-publish","format-standard","hentry","category-sonicwall","category-technology"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p7BMx4-25","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.curli.us\/index.php?rest_route=\/wp\/v2\/posts\/129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.curli.us\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.curli.us\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.curli.us\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.curli.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=129"}],"version-history":[{"count":1,"href":"https:\/\/www.curli.us\/index.php?rest_route=\/wp\/v2\/posts\/129\/revisions"}],"predecessor-version":[{"id":130,"href":"https:\/\/www.curli.us\/index.php?rest_route=\/wp\/v2\/posts\/129\/revisions\/130"}],"wp:attachment":[{"href":"https:\/\/www.curli.us\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.curli.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.curli.us\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}