Disable SIP ALG on Tomato Shibby

Mark Berry March 16, 2017

A PBX vendor like 3CX may tell you to disable SIP ALG on your router.

I’m running Tomato on my router, specifically Tomato Firmware 1.28.0000 MIPSR2-132 K26 Max. With the help of this thread, I checked and disabled SIP ALG.

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3CX SBC Invalid signature received: 0x10317

Mark Berry February 23, 2017

I’m using 3CX Session Border Controller (SBC) 15.0.56341 to connect to a 3CX v15 SP4 server running on Server 2012 R2 in the cloud. Usually it works fine. A couple days ago, though, even after re-starting the SBC, I was getting the error "Invalid signature received: 0x10317".

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3CX 15 Tunnel Not Listening

Mark Berry January 13, 2017

TL;DR If your 3CXPhone app and/or your desktop phone are not able to connect to a remote 3CX server, test connectivity to the server on 3CX tunnel port 5090. If there’s no connection, on the server, check if anything is listening on that port. If not, restart the 3CX SIP/RTP Tunneling Service.

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