• Exchange where calls are established, maintained and released
  • Database for all subscribers and their associated features.
  • Communicates with the BSCs on the A interface and with PSTN on fixed line.
  • MSC is weighted on the number of subscribers it can support. For example, an MSC of 1 lakh subscribers means one MSC is enough till subscriber base increases up to 1 lakh, beyond which another MSC is required.