Can you please explain how many numbers can be written to one CallDirectoryHandler? I've tried to write to test app - and I managed to write 1 999 999 numbers. To my existing app I managed to write only 1 000 000 numbers, but they were all with different length. If the phone numbers are the same length (11 symbols) - I managed to write 1 500 000 numbers. What does it depends on?

Can you please explain why is it only 1 999 999 numbers can be written to one CallDirectoryHandler? Will this number be increased in the future? Is there a way to write more numbers to context?