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Kazoo is a nightmare to run yourself and expensive to host.

Ok dumb question, in the log snippet above are you using [MYEMAILADDRESS@SITE.COM] to obscure your email address or is that actually what you see in the logs? I've had a lot of intermittent trouble with voicemail to email but its usually due to the lua script that does transcription messing...

Friend B needs to get their own internet if they want to host anything. It's that simple. If you're in a bind financially go rent a vps , they're dirt cheap and you'll get an IP in a data center.

This is usually a NAT issue.

Daz, does freeswitch send out an options message to the extensions like the asterisk "Qualify" function? I'm wondering if for some reason the phone goes off line if freeswitch is holding the socket open on the pfsense box.

I'm wondering if perhaps my TCP connection timers on the pfsense are too conservative (long). Every time this happens I can kill the associated states on the pfsense box and they'll register right away. My thinking is perhaps the states become orphaned because they stay open too long.

Kenny were you Fusion PBX boxes also behind pfsense?

'insert via rport' and 'handle via rport' are enabled. So the phones were on a site behind a pfsense router that registered over the public network to our FusionPBX box also behind a pfsense router. The workers were sent home with their phones and are behind different consumer grade routers. I...

Ok I'm supporting a few Cisco spas and am seeing the same behavior when using TCP. I'm behind a pfsense firewall and the Cisco were recently moved from an enterprise that also had a pfsense router out into home offices. I'm thinking the cheap routers at the home offices probably have their TCP...

I think your external profile isn't running.

Wow thanks so much for the detailed response. I'll give this a shot and report back.

I've just been asked for this as well. The above solution is very clever, but I have no idea how you would ever automate that in provisioning. It would be cool to get this working.

In your keep alive message field try $REGISTER instead of $NOTIFY. Honestly I'm not sure why this would have a different effect, but its something to try.

Update: I talked with Mack at dSIPRouter about adding teams as an endpoint and he's willing to do it but its going to require some dev $$$. If anyone's interested in contributing to this feature DM me an we'll co-ordinate with Mack. I'd rather pay Mack than Anynode or Ribbon.

I've never tried to make that work.

Unfortunately I can't copy paste my profiles but I can try and describe it: On Fusion PBX box create one profile for external phones to register to, make sure It has it's own listening port and its ext-nat settings set to the public IP. Profile two has a different listening port and is labelled...

No, it's not just a SIP trunk with TLS, its also special options messages and headers.

Hi guys I found this: https://skalatan.de/en/blog/kamailio-sbc-teams I haven't tried it yet but seems promising, except I know nothing about Kmailio :).

I am also interested in this. Please let me know if you get a response.

That is the holy grail of voip high availability, zero call drops during fail over! Also version control and tight automation are very cool benefits. The flip side is that you're adding a lot of complexity. Having one thing go wrong could lead to cascading failures and a lot of tail chasing...