In early-stage digital payment markets, mobile platforms operate as isolated, closed systems. A user on Mobile Wallet Alpha cannot send funds directly to a consumer on Mobile Wallet Beta, forcing citizens to carry multiple devices and increasing transaction costs. To fix this friction, central banks mandate Interoperability. [1]

[Wallet Provider Alpha Node] <--- Local Token Send ---> [Central National Switch Hub]
                                                                  |
                                                                  v
[Wallet Provider Beta Device] <--- Settled Net Reserves <--------+

Central banks implement a central National Switch to link disparate payment platforms. The switch acts as a clearinghouse, allowing real-time transfers to clear instantly across competing mobile networks, commercial banks, and microfinance systems. This connectivity lowers fees, improves market liquidity, and increases the utility of digital money for retail merchants.