Twilio 外呼

builder.Services.AddTwilioOutboundCall(options =>
{
    options.AccountSid = "ACxxxxxxxxxxxxxxxxxx";
    options.AuthToken = "your-auth-token";
    options.From = "+12025550123";
    options.Cps = 3;
    options.Twiml = TwilioOutboundCallOptions.BuildInlineTwiml("您好，这是一条测试通知。");
    options.EnableMachineDetection = true;
    options.StatusCallback = "https://your-app.com/callback";
});

builder.Services.AddTwilioOutboundCall(options => { /* 见上 */ });

// Twilio 通过 IOutboundCallService 映射到逐通拨号
public class CallService(IOutboundCallService outbound)
{
    public async Task StartBatchAsync(List<string> contacts)
    {
        // CreateCampaign 在内存中创建活动
        var resp = await outbound.CreateCampaignAsync(new CreateCampaignRequest { Name = "batch-001" });
        await outbound.ImportContactsAsync(new ImportContactsRequest
        {
            CampaignId = resp.CampaignId,
            Contacts = contacts,
        });
        // StartCampaign 触发 CampaignDialer 逐通拨号（CPS 节流）
        await outbound.StartCampaignAsync(new StartCampaignRequest { CampaignId = resp.CampaignId });
    }
}