It appears that there is no specific information about "EDGE MSC12" in the provided sources. However, if you are referring to a specific technology or standard related to mobile networks, it might be helpful to clarify what "EDGE MSC12" stands for or what context it is being discussed in.

If you are asking about EDGE (Enhanced Data Rates for GSM Evolution) technology in mobile networks, here is a brief overview:

History of EDGE:
- Introduction: EDGE was introduced in the early 2000s as an evolution of the GSM (Global System for Mobile Communications) network. It aimed to improve data transfer rates over GSM networks.
- Implementation: EDGE increased data transfer speeds by using a combination of GSM and EDGE technologies. It supported faster data rates, enabling applications like mobile internet, email, and multimedia messaging services (MMS).
- Deployment: EDGE was widely deployed in the mid-2000s and became a standard for many GSM networks. It played a significant role in the transition from 2G to 3G technologies.

If "EDGE MSC12" refers to a specific standard or technology within the EDGE framework, it would be a subset or enhancement of the original EDGE technology. However, without more specific information, it's challenging to provide detailed insights into what "EDGE MSC12" might represent. If you have more context or details, please provide them for a more accurate answer.