I will check RoMON out, thank you. I have seen it but never looked into it.I am able to mac-telnet from the 3011 to the QRT panels [...]
Enable RoMON and you're set.
I did try with offset ports with no success. I mac-telneted into the panels and changed the service port.Use non-standard ports for WinBox access to the PTPs. Then it’s just standard NATting to get to them from the internet.
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Thank you!The CPU of the CRS is very underpowered and struggles to reach anything close to a gig. This is a very common complaint and scenario on the CRS. You really need an RB3011, 100AHx2 or 4 or CCR1009 for the routing part.
Are you talking about on the phone itself?Change this to be less than 180 seconds, say 120. The remote server maybe terminating them. MikroTik's timeout is 300. Linux is 180 I think.I believe they re-register every 240 seconds, according to the vendor.
Did disabling the SIP ALG make any difference to the observed behaviour?
You need a packet capture of a phone that is failing to register. SIP is quite readable in Wireshark.