Overall amount of blacklisted numbers shouldn't exceed 9999

[BryanN]

Good day,

Trying to block some numbers we had this warning pop-up, saying that "Overall amount of blacklisted numbers shouldn't exceed 9999 ". Is there a way to solve this? as we have a lot of numbers still to blacklist.

Thanks in advance,

Bryan

 

[leejor]

It may be a limitation, based on the amount of time required to scan all of the numbers in a given time. I can't recall this issue coming up before, so I have to assume that most users don't require that many.

 

[BryanN]

Yeah, just wondering if there is an option to increase that limit, to be able to block more numbers

 

[VoIPTools]

I didn't realize there was a 3CX limit.

You might want to consider a similar approach to our 3CX Do Not Call tool. We needed to block millions of phone numbers (outbound). We created an in-memory hash table containing all our blocked numbers (over 6 million phone numbers). When an agent places a call, we search the list and if the number is found, we automatically drop the call.

You could do something similar with the CFD to block inbound calls. Because the list is read into the hash table one time at startup, and the list is in-memory, you can search the list incredibly quickly.

 

[ChrisC_3CX]

@BryanN

I would recommend checking to see if you could use the asterisk * symbol as a wildcard within the "Blacklisted Number" entries in order to allow one entry to match more than one call. Alternatively, you could actually specify more than one numbers in one entry by separating them with a comma.

Worst case scenario you could always create CID Rules and have them end the call if you need to block additional numbers.