If your users are trying to get on the Phoenix Blockchain network but have not added the network yet, here is a method to help switch them over when connecting to your dAPP:

const phoenixNetwork = {
          chainId: 0x${parseInt(Phoenix.chainId).toString(16)},
          chainName: “Phoenix”,
          nativeCurrency: {
               name: “Phoenix”,
               symbol: “PHX”,
              decimals: 18
          },
          rpcUrls: [“https://rpc.phoenixplorer.com/”],
          blockExplorerUrls: [“https://phoenixplorer.com/”]
     };
     useEffect(() => {
          if (isMismatched) {
                  // Prompt their wallet to switch networks
                  switchNetwork(Phoenix.chainId);