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itriver is currently offline itriver

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We are getting occasional calls to some of our sip handsets from numbers like 100, 1000 etc. and when you answer there is noone there. These calls ring forever, you cant ignore them.

I think it is SIP spam. I cant tell if that means the sip spammer is attacking the Kerio operator server in the cloud, the SIP provider's server, or the handset directly, but I assume it must be the servers since the handsets are behind a NAT.

Is there anything we can do to reduce our exposure to this?
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itriver is currently offline itriver

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We also get a large number of emails from operator saying a user failed to authenticate and was blocked...
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aofnoy01 is currently offline aofnoy01

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Hello everyone
Thanks for getting me to log in to the good forum.



golden slot
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sobhsepid is currently offline sobhsepid

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Is there anything we can do to reduce our exposure to this?
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UnifiedTechs-Brian is currently offline UnifiedTechs-Brian

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How you resolve this depends on the cause. You need to determine if the calls are coming through Kerio Operator or direct to the phones. To do this just see if Operator is logging them or not.

Chances are they will not be in the Kerio Logs in which case google "Ghost Calls" and the make/model of phone you use for fixes.

- Brian
Kerio Preferred Partner, Reseller & Hosting Provider
Unified Technology Solutions
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