Is it possible to clog a phone channel?

Question

Telephony

In mobile phones, there is a blacklisting of a number as a service of the operator. We add the number, he can't get through to us. But the operator offers only 50 numbers on the black list, if I need to, let's say I put a program on my smartphone that drops calls from numbers from the black list. In the second case, is it realistic to fill the telephone channel with a shaft of calls so that ordinary numbers from the white list cannot reach it?