Output devices: 0: Speakers (Realtek) 1: Headphones (USB Audio) Input devices: 0: Microphone (Realtek) 1: Headset mic (USB) Then send: [SetDevice(output,1)] Method A: Windows PowerShell (Native, no extra tools) # Make a call $dde = New-Object -ComObject "DDEClient" $dde.Application = "MicroSIP" $dde.Topic = "control" $dde.Execute('[Dial(5551234)]') $dde = $null Or using a VBScript bridge (more reliable):

A: Not directly via DDE events. Instead, poll [Status] every 200ms or parse the --log CSV live.

A: Yes, but DDE may not work. Use command line only (no runtime control).

However, MicroSIP’s true superpower isn’t just its minimalism; it’s its . Unlike most softphones that hide behind GUI-only operations, MicroSIP exposes dozens of command-line parameters and DDE (Dynamic Data Exchange) commands. This allows you to integrate click-to-dial functionality, automate call logging, trigger system scripts, and embed telephony directly into CRM systems like Salesforce, VTiger, or even custom ERP software.

Introduction In the world of Voice over IP (VoIP), efficiency and footprint matter. While heavyweight softphones like Zoiper or X-Lite offer graphical bells and whistles, they often consume system resources and lack true automation capabilities. Enter MicroSIP —a free, open-source, lightweight SIP softphone for Windows that weighs under 300KB.