How to secure access to PSTN line through Linksys gateway?
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Posted by Vincent Delporte on November 20, 2006, 6:51 pm
Please log in for more thread options Hello I successfully hooked up a Linksys 3102 SIP gateway (http://www.voip-info.org/users/683/21683/images/716/SPA3102_lrg.jpg) to an Asterisk server, but since it's connected to a PSTN line, I must make sure it cannot be used by unauthorized users from the Net. Actually, even legit users with an account on the Asterisk server shouldn't be able to use it (outgoing calls should go through a VoIP provider instead). Does someone know what steps must be taken in Asterisk and on the Linksys to secure access to the Linksys box? Thank you. | ||||||||||||||||||||||||||||
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Posted by Jonathan Roberts on November 20, 2006, 7:25 pm
Please log in for more thread options Vincent Delporte wrote: Have you set it up as its own trunk in Asterisk? Jonathan PS-- is this 'plain vanilla' Asterisk or TrixBox/freepbx? | ||||||||||||||||||||||||||||
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Posted by Vincent Delporte on November 20, 2006, 7:28 pm
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On Mon, 20 Nov 2006 18:25:08 -0600, Jonathan Roberts >Have you set it up as its own trunk in Asterisk?
No idea :-) I just added an account for this device in sip.conf. >PS-- is this 'plain vanilla' Asterisk or TrixBox/freepbx?
plain vanilla (with hot fudge on top, I confess). | ||||||||||||||||||||||||||||
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Posted by Jonathan Roberts on November 20, 2006, 7:46 pm
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Vincent Delporte wrote: > On Mon, 20 Nov 2006 18:25:08 -0600, Jonathan Roberts
>> Have you set it up as its own trunk in Asterisk?
>
> No idea :-) I just added an account for this device in sip.conf. > >> PS-- is this 'plain vanilla' Asterisk or TrixBox/freepbx?
>
> plain vanilla (with hot fudge on top, I confess). Looks like Enzo got to you first :) Good luck! Jonathan | ||||||||||||||||||||||||||||
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Posted by Enzo Michelangeli on November 20, 2006, 7:26 pm
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> Hello
> > I successfully hooked up a Linksys 3102 SIP gateway > (http://www.voip-info.org/users/683/21683/images/716/SPA3102_lrg.jpg) > to an Asterisk server, but since it's connected to a PSTN line, I must > make sure it cannot be used by unauthorized users from the Net. > Actually, even legit users with an account on the Asterisk server > shouldn't be able to use it (outgoing calls should go through a VoIP > provider instead). > > Does someone know what steps must be taken in Asterisk and on the > Linksys to secure access to the Linksys box? It's very easy to prevent outgoing calls initiated by Asterisk: just don't put anywhere in the dialplan a "Dial()" statement referencing the 3102 (or if you do, don't make the context where it occurs accessible by regular users). If you worry about direct SIP sessions from SIP clients to the 3101, you might register the 3102 to an Asterisk account and set "Make Call Without Reg:" to "No" in the "PSTN Line" screen. Or, if nobody should be authorized to dial out, just disable the "VoIP-to-PSTN" function. In the SPA-3100 you can set the "VoIP-To-PSTN Gateway Enable:" to "No" in the same "PSTN Line" screen: the 3102 should be similar. Enzo | ||||||||||||||||||||||||||||
>
> I successfully hooked up a Linksys 3102 SIP gateway
> (http://www.voip-info.org/users/683/21683/images/716/SPA3102_lrg.jpg)
> to an Asterisk server, but since it's connected to a PSTN line, I must
> make sure it cannot be used by unauthorized users from the Net.
> Actually, even legit users with an account on the Asterisk server
> shouldn't be able to use it (outgoing calls should go through a VoIP
> provider instead).
>
> Does someone know what steps must be taken in Asterisk and on the
> Linksys to secure access to the Linksys box?
>
> Thank you.