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ctiefel · 09-19-2016 07:29 PM

Any idea how to get rid of them? We have it behind a firewall but still keep getting ghost calls. I have turned off SIP IP calls but there is no option for the SIP Trust Control.

***Leah_Yealink*** · 09-29-2016 11:24 AM

Hi,

Please refer to this FAQ.
http://support.yealink.com/faq/faqInfo?id=429

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