The term "Golden Number" is not commonly associated with GSM (Global System for Mobile Communications) technology or the mobile telecommunications industry. GSM is a widely used standard for cellular networks, and it primarily deals with the technical specifications and standards for mobile communication, including voice and data services.It's possible that you may be referring to something else related to GSM, but without more context or information, it's challenging to provide a specific answer. If you have a different question or if you could provide more details about what you mean by "Golden Number" in the context of GSM, I'd be happy to try to provide more information.