问基于SIP调用的iOS裸SIP

EN

@IBAction func btnCallClick(_ sender: Any) {
    guard libre_init() == 0 else { return }

    // Initialize dynamic modules.
    mod_init()

    // Make configure file.
    if let path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first {
        conf_path_set(path)
    }
    guard conf_configure() == 0 else { return }

    // Initialize the SIP stack.
    guard baresip_init(conf_config(), 0) == 0 else { return }
    guard ua_init("SIP", 1, 1, 1, 0) == 0 else { return }

    // Load modules.
    guard conf_modules() == 0 else { return }

    let addr = "sip:101@xxx.xxx.com:port;auth_pass=aaaa;transport=udp;answermode=auto"

    // Start user agent.
    guard ua_alloc(&agent, addr) == 0 else { return }

    // Make an outgoing call.
    guard ua_connect(agent, nil, nil, "sip:100@xxx.xxx.com", VIDMODE_OFF) == 0 else { return }

    // Start the main loop.
    re_main(nil)
}