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Draytek 2820 IPPBX - Blocking SIP Register from the Internet

  • mlcook
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22 Jul 2011 14:54 #68722 by mlcook
I have a number of IP phones on the LAN side of my 2820 IPPBX. I need to continue using these to make and receive calls over SIP trunks to a range of ITSPs.

However, I want to block SIP clients out on the internet from registering, or trying to register, with the IPPBX via the public IP (WAN) interface.

Could someone please advise what setting I need to tweak to block external clients from registering, without compromising the ability of my LAN clients to make and receive calls?

Martin

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25 Jul 2011 16:59 #68732 by admin
Depending on the firmware you have, this should be set by default (either way, you should run the latest firmware). There is a setting for allowing remote registratio and then it's also per extension setting... sorry can't be more specific as I'm not with a PBX now. It's important you set this in order to stop people stealing calls from you if they find out your passwords etc.



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  • mlcook
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25 Jul 2011 23:56 #68738 by mlcook
Thanks for the response. I am running firmware 3.5.4_232201 and don't see the option to disable remote registrations.

Looking through the release notes it seems this was first added in 3.5.5 and refined further after that. I do usually run the latest firmware on my Draytek routers but with the IPPBX I have previously tried to upgrade only to find basic functions stopped working and I had to roll back. I might have to look into this further.

Martin

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26 Jul 2011 07:14 #68739 by admin
You should definitely upgrade.



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