Unsolicited "100" calls on desktop app
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				Kataris
 - Just Passing Thru
 - Posts: 3
 - Joined: 06/15/2015
 - SIP Device Name: Freephoneline
 - ISP Name: Rogers Cable
 - Computer OS: Windows 7
 - Router: CGN2-ROG
 
Unsolicited "100" calls on desktop app
Every now and then I'll get calls from a "100" number which I cannot block as the desktop app claims that it's an invalid number. Is there anything I can do to defend against this if I only use the desktop app? Most solutions seem to involve some other hardware.