Hi, I want to ask. Can I set those things in Comodo?
thank you
1,2,3 - no such features available yet 
Regarding 2, you can add as many numbers to black list which will be blocked as you wish. There is no “block all except these: […]” option.
Ok, it is shame. Do you not know if it adds in next versions?
I’ve asked about 1 (also, including numbers containing letters) to be added some time ago. Let’s wait and see.
I have to use Avast free because this features is still missing in CMS
what is audible about it?
Regarding point 1, today update log says :“Calls from unknown number can be added to blocked list”
I gave it some tries, but without any success.
Any clue about it ?
These must be calls shorter that 15 secs or rejected by you.
I keep the phone ringing until the end.
A popup appears telling : “null” is an unknown number. Whould you like to blacklist it ?
Choosing yes, but nothing is done. The blacklist stays empty.
When manually adding a phone number (import from phone records) and selecting the empty entry, it just adds a “-2” in the blacklist, but the next incoming private number is not blocked.
What am I doing wrong ? 
I think it is still not working.
Ok, so we will wait for the next release, with the hope this functionality will be fixed 
That’s because you are trying to add private number. Black list cannot handle it.
So any chance private numbers will be handled ?
Hopefully. I requested feature to block private numbers.
For me does not work hidden numbers and unknown numbers too.
Avast have this options. It works very well.
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coolly here such function would add in Comodo
This issue we will test, thank you for your feedback. If it is BUG, we will in the next version fixed.