使用 Conexant USB CX93010 调制解调器从串口获取 Callerid？

Question

我有一个 C# 代码，但是当我将线路连接到电话时，它不需要从连接到 USB 端口的拨号调制解调器获取来电显示。它获得了 CallerID，但在程序运行和阅读行中，我只是 RING 没有别的。

这是我的代码：

public partial class Form1 : XtraForm
{
    public Form1()
    {
        InitializeComponent();            
    }

    SerialPort sp ;
    private void simpleButton1_Click(object sender, EventArgs e)
    {            
        sp = new SerialPort(textEdit1.Text);
        sp.NewLine = "\r\n";
        sp.Parity = Parity.None;
        sp.DataBits = 8;
        sp.StopBits = StopBits.One;
        sp.DtrEnable = true;
        sp.WriteBufferSize = 1024;

        sp.Open();
        sp.WriteLine("AT+VCID=1");
        sp.RtsEnable = true;
        timer1.Start();
    }

    void sp_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
    {

    }

    private void Form1_FormClosed(object sender, FormClosedEventArgs e)
    {
        sp.Close();
    }

    private void timer1_Tick(object sender, EventArgs e)
    {
        memoEdit1.Text += "\n" + sp.ReadExisting();
    }

    private void simpleButton2_Click(object sender, EventArgs e)
    {
        sp.Close();
    }

Answer 1

当您的调制解调器支持来电显示时，请使用 AT+CLIP=1。这将导致在调用调制解调器时显示未经请求的 +CLIP 消息。

+CLIP 主动消息通常表述如下：

+CLIP: <number>,<type>,,,,<cli validity>

其中<number> 是一个字符串，其中包含由<type> 定义的格式的数字。 <type> 地址八位字节，例如国际号码是 145。<cli validity> 确定号码是否被扣留等。

Answer 2

Conexant USB CX93010 ACF 调制解调器没有 FSK 协议

Answer 3

我根据我对科胜讯 USB CX93010 所做的一些测试发布了下面的代码。下面的代码是用 C（而不是 C#）编写的，并且在 Linux（而不是 Windows）上运行。但它应该为 C# 程序提供良好的基线。

代码是基于另一个由Sawdust编写的Stack Overflow answer，并有程序测试结果。

您还可以在http://www.arcelect.com 找到适用于科胜讯调制解调器的综合 AT 命令集。它的日期是 2001 年，但它为调制解调器提供的 AT 命令比我在网上其他地方找到的要多。

---

这是代码。

#include <errno.h>
#include <fcntl.h> 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>

#define DISPLAY_STRING 1

int set_interface_attribs(int fd, int speed)
{
    struct termios tty;

    if (tcgetattr(fd, &tty) < 0) {
        printf("Error from tcgetattr: %s\n", strerror(errno));
        return -1;
    }

    cfmakeraw (&tty);
    cfsetospeed(&tty, (speed_t)speed);
    cfsetispeed(&tty, (speed_t)speed);

    if (tcsetattr(fd, TCSANOW, &tty) != 0) {
        printf("Error from tcsetattr: %s\n", strerror(errno));
        return -1;
    }
    return 0;
}

void write_command(int fd, const void* cmd, size_t len)
{
    if (len == ~(size_t)0)
        len = strlen((const char*)cmd);

    printf("Send %d: %s\n", (int)len, (const char*)cmd);

    int wlen = write(fd, cmd, len);

    if (wlen != len) {
        printf("Error from write: %d, %d\n", wlen, errno);
    }
    tcdrain(fd);    /* delay for output */
}

void read_response(int fd)
{
    char buf[256];
    int rlen = read(fd, buf, sizeof(buf) - 1);

    if (rlen > 0) {
#ifdef DISPLAY_STRING
        buf[rlen] = 0;
        printf("Read %d: \"%s\"\n", rlen, buf);
#else /* display hex */
        unsigned char *p;
        printf("Read %d:", rlen);
        for (p = buf; rlen-- > 0; p++)
            printf(" 0x%x", *p);
        printf("\n");
#endif
    } else if (rlen < 0) {
        printf("Error from read: %d: %s\n", rlen, strerror(errno));
    } else {  /* rlen == 0 */
        printf("Timeout from read\n");
    }
}

int main(int argc, char* argv[])
{
    int fd;
    const char portname[] = "/dev/ttyACM0";

    fd = open(portname, O_RDWR | O_NOCTTY | O_SYNC);
    if (fd < 0) {
        printf("Error opening %s: %s\n", portname, strerror(errno));
        return -1;
    }

    /*baudrate 115200, 8 bits, no parity, 1 stop bit */
    set_interface_attribs(fd, B115200);

    write_command(fd, "ATZ\r", 4); /* Reset */

    read_response(fd);

    write_command(fd, "ATE0\r", -1);  /* Echo off */

    read_response(fd);

    write_command(fd, "AT+VCID=?\r", -1);  /* Query CallerID caps */

    read_response(fd);

    write_command(fd, "AT+CLIP=?\r", -1);  /* Query CallerID caps */

    read_response(fd);

    write_command(fd, "AT+VCID=1\r", -1);  /* Set CallerID */

    read_response(fd);

    printf("Entering loop, CTRL+C to break...\n\n");

    while (1)
    {
        read_response(fd);
    }

    return 0;
}

---

以下是使用手机的测试结果。我更改了姓名和电话号码；否则它就是程序的确切输出。

$ sudo ./modem.exe
Send 4: ATZ
Read 6: "
OK
"
Send 5: ATE0
Read 11: "ATE0
OK
"
Send 10: AT+VCID=?
Read 15: "
(0-2)

OK
"
Send 10: AT+CLIP=?
Read 9: "
ERROR
"
Send 10: AT+VCID=1
Read 6: "
OK
"

Entering loop, CTRL+C to break...

Read 8: "
RING
"
Read 67: "
DATE = 0214
TIME = 2116
NMBR = 2025551212
NAME = JANE DOE
"
Read 8: "
RING
"
Read 67: "
DATE = 0214
TIME = 2116
NMBR = 2025551212
NAME = JANE DOE
"
Read 8: "
RING
"
Read 8: "
RING
"
Read 8: "
RING
"

---

此外，您可以发送AT+GSR 以获取真正的调制解调器版本，而不是 Windows 提供的版本（这似乎有点不准确）：

Send 7: AT+GMR
Read 44: "AT+GMR
+GMR: CX93001-EIS_V0.2013-V92

OK"

Answer 4

1. 您必须将Country of Installation 设置为B5 AT+GCI=B5 经过三周的调查后我得到了它（在您的国家可能推迟它可以是 00 或 B4 或 B5，但 B5 用于大多数固定线路的工程):

2. 然后通过AT+VCID=1 或AT+VCID=2 启用CID 报告，如manual 所述：

3. 然后它完美地工作：

这是我基于你的工作代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CIDResolver
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        SerialPort sp;
        private void Connect_click(object sender, EventArgs e)
        {
            sp = new SerialPort(textEdit1.Text);
            sp.BaudRate = 11500;
            sp.NewLine = "\r\n";

            sp.Open();

            sp.WriteLine("AT+GCI=B5"); // can be 00 or B4 or B5
            sp.WriteLine("AT+VCID=1");

            sp.DataReceived += new SerialDataReceivedEventHandler((object _s, SerialDataReceivedEventArgs _e) =>
            {
                string newData = sp.ReadExisting();
                consoleOut.Invoke((MethodInvoker)delegate {
                    // Running on the UI thread
                    consoleOut.Text += newData+ "\r\n";
                });
            });
        }


        private void disConnectBtn_Click(object sender, EventArgs e)
        {
            sp.Close();
        }

        private void Form1_FormClosed_1(object sender, FormClosedEventArgs e)
        {
            sp.Close();
        }
    }
}