如何使用Python中的AT命令拒绝或接受GSM调制解调器的来电？

我编写了下面的Python程序来等待传入呼叫并接受或拒绝它们。根据文档和文档，接受来电的适当AT命令是

ATA

或

ATS0

或

ATS0

。另外，拒绝来电的适当命令是

ATH

或

AT H

我尝试了上面所有的命令，但是来电既没有应答也没有拒绝

我的Python程序：

import time
import serial

phone = serial.Serial("COM10",  115200, timeout=5)

try:
    time.sleep(1)

    while(1):
        x = phone.readline()
        print(x)
        if (x == b'RING\r\n'):
            phone.write(b'AT H') # I replaced this 'AT H' with all the above
                                 # commands, but nothing changed about the
                                 # incoming call. It always ringing.
            time.sleep(2)

finally:
    phone.close()

>>> ================================ RESTART ================================
>>> 
b''
b''
b'\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATS0\r\n'
b'RING\r\n'
b'ATS0\r\n'
b'RING\r\n'

H时

的结果

：

import time
import serial

phone = serial.Serial("COM10",  115200, timeout=5)

try:
    time.sleep(1)

    while(1):
        x = phone.readline()
        print(x)
        if (x == b'RING\r\n'):
            phone.write(b'AT H') # I replaced this 'AT H' with all the above
                                 # commands, but nothing changed about the
                                 # incoming call. It always ringing.
            time.sleep(2)

finally:
    phone.close()

>>> ================================ RESTART ================================
>>> 
b''
b''
b'\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATS0\r\n'
b'RING\r\n'
b'ATS0\r\n'
b'RING\r\n'

ATH的结果：

import time
import serial

phone = serial.Serial("COM10",  115200, timeout=5)

try:
    time.sleep(1)

    while(1):
        x = phone.readline()
        print(x)
        if (x == b'RING\r\n'):
            phone.write(b'AT H') # I replaced this 'AT H' with all the above
                                 # commands, but nothing changed about the
                                 # incoming call. It always ringing.
            time.sleep(2)

finally:
    phone.close()

>>> ================================ RESTART ================================
>>> 
b''
b''
b'\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATS0\r\n'
b'RING\r\n'
b'ATS0\r\n'
b'RING\r\n'

ATA的结果：

import time
import serial

phone = serial.Serial("COM10",  115200, timeout=5)

try:
    time.sleep(1)

    while(1):
        x = phone.readline()
        print(x)
        if (x == b'RING\r\n'):
            phone.write(b'AT H') # I replaced this 'AT H' with all the above
                                 # commands, but nothing changed about the
                                 # incoming call. It always ringing.
            time.sleep(2)

finally:
    phone.close()

>>> ================================ RESTART ================================
>>> 
b''
b''
b'\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATS0\r\n'
b'RING\r\n'
b'ATS0\r\n'
b'RING\r\n'

ATS0的结果：

import time
import serial

phone = serial.Serial("COM10",  115200, timeout=5)

try:
    time.sleep(1)

    while(1):
        x = phone.readline()
        print(x)
        if (x == b'RING\r\n'):
            phone.write(b'AT H') # I replaced this 'AT H' with all the above
                                 # commands, but nothing changed about the
                                 # incoming call. It always ringing.
            time.sleep(2)

finally:
    phone.close()

>>> ================================ RESTART ================================
>>> 
b''
b''
b'\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'
b'AT H\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'
b'ATH\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'
b'ATA\r\n'
b'RING\r\n'

>>> ================================ RESTART ================================
>>> 
b''
b''
b''
b'\r\n'
b'RING\r\n'
b'ATS0\r\n'
b'RING\r\n'
b'ATS0\r\n'
b'RING\r\n'

如上所述，无论我向GSM调制解调器发送的AT命令是什么，它都会继续鸣响。我的程序怎么了

请注意，我的调制解调器是一个，我可以在Python中使用它成功地发送SMS或拨打电话。

---

提前感谢。

在每个

AT

命令的末尾添加一个CR以使其成为有效的

AT

命令

我们不能直接拒绝来电。要拒绝来电，我们应该配置语音挂断控制命令

AT+CVHU（语音挂断命令）

---

ATH命令取决于AT+CVHU。

您有什么类型的GSM模块？@KhalilAmmour-它是a。然后您应该参考它的手册了解正确的AT命令！。。。让我检查一下out@KhalilAmmour-每个调制解调器类型的AT命令是否不同？我认为这些是所有GSM调制解调器的标准配置。我错了吗？不确定，但是你，你自己，为我们提供了不同的命令，不是吗？

phone = serial.Serial("/dev/ttyAMA0", baudrate=9600, timeout=1)

try:
    time.sleep(1)

    while(1):
        x = phone.readline()
        print(x)
        if (x == b'RING\r\n'):
            phone.write('ATH'+'\r\n') 
            time.sleep(2)

finally:
    phone.close()