SIP scanners
Mango:
They're trying to break into IP PBX systems so that they can route their customers' high-cost calls, make illegal/scam calls, or make calls to numbers they get compensation for. I suspect they're not actually looking for us; we're just collateral damage.
Edited to add: an improperly-configured InboundCallRoute could allow a hacker to route calls via your OBi device. Use extreme caution when setting up an InboundCallRoute to route calls to spx or li and be sure you're doing it safely. (If you're routing calls to ph like Oleg demonstrated, that is fine.)
ianobi:
Hoping not to confuse things here :)
Quote
My final inbound call route is ">('myname'|123456@.):ph1"
Anything within the parentheses is simply a digit map, you can put anything you want in there. Anything matching that digit map will ring the phone. As oleg points out, whatever is sent in the SIP INVITE before the "@" is what has to match the digit map.
This is how we send digits in more complex InboundCallRoutes using rules such as {>(Msp2):sp2}, where any digits sent before the "@" in the SIP INVITE that also match Msp2 are sent out to sp2.
ianobi:
oleg,
Well you certainly got us all talking :)
This: ([^*+]@@[^+].<+:@>@@.|[^*]@@.'@'@@.) is my entry for the most bizarre OBi digit map competition :D It does have a use for sending SIP URI format calls over the OBiTALK network as described in another post. It does not have a function here as far as I can see!
Mango:
Wouldn't an InboundCallRoute of {>(Msp2):sp2} have the potential to be rather insecure? I would rather see it restricted to something like {('ianobi')>(Msp2):sp2}, thus preventing anyone who's not you from using it. That is, assuming whatever you've configured for sp2 is not intended to be publicly accessible.
Ostracus:
Quote from: ianobi on March 21, 2013, 09:08:21 am
oleg,
Well you certainly got us all talking :)
This: ([^*+]@@[^+].<+:@>@@.|[^*]@@.'@'@@.) is my entry for the most bizarre OBi digit map competition :D It does have a use for sending SIP URI format calls over the OBiTALK network as described in another post. It does not have a function here as far as I can see!
Indeed. Aside from the nerdiness what advantage does one gain using SIP URIs vs the traditional way of calling, remembering that the ATAs and VoIP providers handle most of the complexity anyway?
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