Whitlisted phone numbers are bloking in foreign country

[LoHub]

First of all thank you for this perfect open source application which block about ten unwanted phone call per day for me.

However, I recently traveled in a foreign country and my whitlisted phone numbers was blocked because my phone added the country prefix and Blacklist Blocker was not be able to recognize the number to authorize it.

Is it possible to make more flexible rules with international prefix number ? Many thanks.