What is MSRN Mobile Station Roaming Number?

The Mobile Subscriber Roaming Number (MSRN) is used in the home network to forward approaching calls for the mobile station to the network it visits. It is stored in the Home Location Register (HLR). It is utilized to route telephone calls in a portable network from a GMSC (Gateway Mobile Switching Centre) to the MSC. It can likewise be characterized as a directory number briefly allotted to a mobile for a mobile terminated call.