Is it permissible to work in the field of international call forwarding despite the state's monopoly and prohibition of this service, with penalties of fine, imprisonment, or both, knowing that other companies have obtained licenses?

What we elucidated in Fatwa (definition) no. 137347 is sufficient to answer your question. However, the state's intensification of the penalty for violating the monopoly service law—that it is a fine or imprisonment or both, and that it is considered a state security issue—all of this strengthens the aspect of prohibition and the necessity of avoiding the violation, whatever the reason for the monopoly, in order to preserve the dignity of the Muslim, for the Prophet, peace and blessings be upon him, said: "It is not befitting for a believer to humiliate himself." They asked: "How does he humiliate himself?" He said: "He exposes himself to trials he cannot bear."