https://docs.gammu.org/python/index.html#python-gammu

dialvoice.py

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+#!/usr/bin/env python
+
+from __future__ import print_function
+import gammu
+import sys
+
+# Create object for talking with phone
+state_machine = gammu.StateMachine()
+
+# Read the configuration (~/.gammurc or from command line)
+if len(sys.argv) > 2:
+    state_machine.ReadConfig(Filename=sys.argv[1])
+    del sys.argv[1]
+else:
+    state_machine.ReadConfig()
+
+# Connect to the phone
+state_machine.Init()
+
+# Check whether we have a number to dial
+if len(sys.argv) != 2:
+    print("Usage: dialvoice.py NUMBER")
+    sys.exit(1)
+
+# Dial a number
+state_machine.DialVoice(sys.argv[1])

sendmessage.py

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+#!/usr/bin/env python
+# Sample script to show how to send long (multipart) SMS
+
+from __future__ import print_function
+import gammu
+import sys
+
+# Create object for talking with phone
+state_machine = gammu.StateMachine()
+
+# Optionally load config file as defined by first parameter
+if len(sys.argv) > 2:
+    # Read the configuration from given file
+    state_machine.ReadConfig(Filename=sys.argv[1])
+    # Remove file name from args list
+    del sys.argv[1]
+else:
+    # Read the configuration (~/.gammurc)
+    state_machine.ReadConfig()
+
+# Check parameters
+if len(sys.argv) != 2:
+    print("Usage: sendlongsms.py [configfile] RECIPIENT_NUMBER")
+    sys.exit(1)
+
+# Connect to the phone
+state_machine.Init()
+
+
+# Create SMS info structure
+smsinfo = {
+    "Class": -1,
+    "Unicode": False,
+    "Entries": [
+        {
+            "ID": "ConcatenatedTextLong",
+            "Buffer": "Very long python-gammu testing message "
+            "sent from example python script. "
+            "Very long python-gammu testing message "
+            "sent from example python script. "
+            "Very long python-gammu testing message "
+            "sent from example python script. ",
+        }
+    ],
+}
+
+# Encode messages
+encoded = gammu.EncodeSMS(smsinfo)
+
+# Send messages
+for message in encoded:
+    # Fill in numbers
+    message["SMSC"] = {"Location": 1}
+    message["Number"] = sys.argv[1]
+
+    # Actually send the message
+    state_machine.SendSMS(message)