using NDde.Client; var client = new DdeClient("MicroSIP", "control"); client.Connect(); client.Execute("[Dial(5551234)]", 60000); client.Disconnect();
Registering sip: or tel: protocols in Windows to pass data directly to MicroSip via web browsers or external apps. 2. Command Line Interface (CLI) Reference
[DllImport("user32.dll", CharSet = CharSet.Auto)] public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
Limitations and considerations
MicroSIP accepts command-line arguments for basic control:
Force a call using a specific SIP identity:
In the world of Voice over IP (VoIP), efficiency and customization are paramount. While many users rely on graphical interfaces for softphones, power users, IT administrators, and developers often need something more: programmatic control. microsip api documentation
: Passes the disconnected party's Caller ID string.
Run: cscript dial.vbs 5551234
Command-line arguments and process control MicroSIP accepts command-line parameters to launch the app and perform immediate actions (such as dialing a number or opening with a specific account). This enables simple automation: scripts or other applications can spawn MicroSIP with arguments to initiate calls or configure startup behavior. Exact parameter names and behavior should be checked in MicroSIP’s documentation or help output bundled with the application. using NDde
| Issue | Solution | |-------|----------| | Commands ignored | Ensure only instance of MicroSIP is running. Multiple instances conflict. | | WM_COPYDATA not working | Run your controlling app with same or higher privileges (both as admin or both non-admin). | | DTMF not heard | Ensure RFC2833 is enabled in MicroSIP account settings. In-band DTMF may fail with codecs like G729. | | Chinese/Unicode numbers | MicroSIP API expects ASCII or UTF-8 without BOM. Use standard digits 0-9#* . | | No callback execution | Check path to script has no spaces, or use short file names (e.g., C:\PROGRA~1\script.bat ). |
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[DllImport("user32.dll", CharSet = CharSet.Auto)] public static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, ref COPYDATASTRUCT lParam); While many users rely on graphical interfaces for