sim-access

A Python module for managing SIM modules

Setup

The setup is:

• A serial sim module SIM7500A.
• A USB to serial module connecting my computer with SIM7500A.

To receive SMS and calls, you need to write a class from base class SIMModuleBase. There are two method you need to implement. on_sms() and on_call(). Here is one example.

class MySIM(SIMModuleBase):
    def on_sms(self, number, content):
        print('Text from: {0}, Content: \"{1}\"'.format(number, content))

    def on_call(self, number):
        print('Got phone call from {0}'.format(number))
        time.sleep(5)
        self.call_hangup()
        time.sleep(5)
        self.sms_send(number, 'You called me!')

if __name__ == '__main__':
    MySIM().mainloop()

Whenever you received an SMS, on_sms() willl be called. If you receive a phone call, on_call() will be called. Please note that on_call() could be called multiple times during a phone call.

There is no implemenation of answering the phone call right now. The SIM module I bought does not support answering phone calls.

Implementation

Internally, I use a thread to monitor incoming texts and calls.