# Load and activate modem configuration

This sample app demonstrates how to load and activate modem configuration.

1. Get the ConfigFactory instance

auto &configFactory = telux::config::ConfigFactory::getInstance();
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2. Get ModemConfigManager instance and wait for sub system initialization

std::promise<telux::common::ServiceStatus> prom{};
    modemConfigManager_ = configFactory.getModemConfigManager(
         [&prom](telux::common::ServiceStatus status) {
             prom.set_value(status);
    });
    
    if (!modemConfigManager_) {
        std::cout << "Failed to get modem config Manager" << std::endl;
        return;
    }
    
     // Check if modem config subsystem is ready
     // If  modem config subsystem is not ready, wait for it to be ready
     telux::common::ServiceStatus managerStatus = modemConfigManager_->getServiceStatus();
     if (managerStatus != telux::common::ServiceStatus::SERVICE_AVAILABLE) {
         std::cout << "\nModem config subsystem is not ready, Please wait ..." << std::endl;
         managerStatus = prom.get_future().get();
     }
    
     // Exit the application, if TelSDK is unable to initialize modem config subsystem
     if (managerStatus != telux::common::ServiceStatus::SERVICE_AVAILABLE) {
         std::cout << "ERROR - Unable to initialize subsystem" << std::endl;
         return;
     }
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3. Load a modem config file from file path

std::promise<bool> p;
    auto status = modemConfigManager_->loadConfigFile(filePath, configType_,
              [&p](telux::common::ErrorCode error) {
              if (error == telux::common::ErrorCode::SUCCESS) {
                 p.set_value(true);
              } else {
                 std::cout << "Failed to load config" << std::endl;
                 p.set_value(false);
              }
    });
    
    if(status == telux::common::Status::SUCCESS) {
        std::cout << "Load config Request sent" << std::endl;
    } else {
        std::cout << "Load config Request failed" << std::endl;
    }
    
    if (p.get_future().get()) {
        std::cout << "Load config succeeded." << std::endl;
    }
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4. Request configuration list from modem’s storage

// configList_ is member variable to store config list
    std::promise<bool> p;
    telux::common::Status status = modemConfigManager_->requestConfigList(
         [&p, this](std::vector<telux::config::ConfigInfo> configList,
                                         telux::common::ErrorCode errCode) {
         if (errCode == telux::common::ErrorCode::SUCCESS) {
             configList_ = configList;
             p.set_value(true);
         } else {
             std::cout << "Failed to get config list" << std::endl;
             p.set_value(false);
         }
    });
    
    if (status == telux::common::Status::SUCCESS) {
        std::cout << "Get Config List Request sent" << std::endl;
    } else {
        std::cout << "Get Config List Request failed" << std::endl;
    }
    
    if (p.get_future().get()) {
        std::cout << "Config List Updated !!" << std::endl;
    }
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5. Activate modem configuration

// configNo denotes index of the modem config file in in config List.
    ConfigId configId;
    configId = configList_[configNo].id;
    
    telux::common::Status status = modemConfigManager_->activateConfig(configType_, configId,
             slotId_, [&p](telux::common::ErrorCode error) {
             if (error == telux::common::ErrorCode::SUCCESS) {
                 p.set_value(true);
             } else {
                 std::cout << "Failed to activate modem configuration" << std::endl;
                 p.set_value(false);
             }
    });
    
    if (status == telux::common::Status::SUCCESS) {
        std::cout << "Activate Request sent " << std::endl;
    } else {
        std::cout << "Activate Request failed" << std::endl;
    }
    
    if (p.get_future().get()) {
        std::cout << "config Activated !!" << std::endl;
    }
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Last Published: Aug 05, 2026

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