Microsip Api Documentation [hot]

MicroSip is one of the most popular open-source SIP softphones for Windows, valued for its lightweight footprint and high performance. For developers looking to integrate VoIP functionality into their own applications, the MicroSip API provides a powerful way to automate dialing, manage calls, and handle messaging without building a SIP stack from scratch.

This guide explores the MicroSip API documentation, covering integration methods, common commands, and practical implementation. Understanding the MicroSip API Architecture

Unlike cloud-based platforms that use REST APIs, MicroSip is a local Windows application. Its "API" is primarily exposed through Command Line Interface (CLI) arguments and a Windows messaging protocol. This allows external programs—like CRMs, helpdesk software, or custom scripts—to "talk" to a running instance of MicroSip. Key capabilities include: Automated outbound dialing (Click-to-Call). Answering or hanging up calls programmatically. Sending SMS or instant messages.

Controlling the app window state (hidden, minimized, or active). Integration Method 1: Command Line Arguments

The simplest way to interact with MicroSip is via the executable commands. This method is ideal for simple "Click-to-Call" features in web browsers or desktop shortcuts.

Basic Syntax:microsip.exe [number] [-exit] [-minimized] [-hide] Common CLI Examples: microsip api documentation

Initiate a Call:Simply pass the phone number as an argument.microsip.exe 123456789 Hang Up Current Call:microsip.exe -hangup Answer an Incoming Call:microsip.exe -answer Send an SMS:microsip.exe -sendmess "number" "message text"

Integration Method 2: The URL Protocol (Browser Integration)

To enable dialing directly from a CRM or a website, MicroSip registers several URI schemes during installation. This is the most common "API" use case for web developers. Supported protocols include: sip:number sips:number tel:number callto:number HTML Example:Call Support

When a user clicks this link, Windows passes the number to MicroSip, which initiates the call immediately. Integration Method 3: Windows Messaging (Advanced)

For deep integration where your app needs to know the status of a call (e.g., is it ringing, connected, or ended?), you must use Windows Messages (WM_COPYDATA). This allows bidirectional communication: MicroSip is one of the most popular open-source

Commands: Your app sends a data structure to the MicroSip window handle.

Events: MicroSip can be configured to send notifications back to your application's window. Common Action Commands: action=ready: Checks if MicroSip is active. action=call&number=123: Starts a call. action=hangup: Ends the session. Best Practices for Implementation

To ensure a smooth user experience when working with the MicroSip API, follow these technical tips:

Check Path Variables: Ensure microsip.exe is in the system PATH, or use the absolute path (usually C:\Program Files\MicroSip\microsip.exe) in your scripts.

Handle Instances: MicroSip is designed to be a single-instance app. Sending a new command usually interacts with the already running process rather than opening a second window. Send DTMF tones (digits 0-9, *, #, A-D)

Security: If using the URL protocol, ensure your application sanitizes input to prevent "command injection" through specially crafted phone number strings.

Error Handling: Since MicroSip doesn't return traditional HTTP status codes, your wrapper should check if the process is running before attempting to send commands. Conclusion

The MicroSip API documentation reveals a tool that is simple yet effective for desktop-level automation. By leveraging CLI arguments for basic tasks or Windows Messaging for complex integrations, developers can bridge the gap between their custom software and professional-grade VoIP communication.

Whether you are building a custom CRM dialer or a simple notification script, MicroSip provides the necessary hooks to turn a lightweight softphone into a programmable communication engine. If you'd like to build a specific integration, tell me: Programming language (e.g., Python, C#, JavaScript) Desired action (e.g., logging call duration, auto-dialing) Host environment (e.g., web-based CRM, local desktop app)

1. Command-Line Interface (CLI)

MicroSIP accepts command-line arguments for basic control:

# Make a call
MicroSIP.exe "sip:number@domain"
2. DTMF Sending (In-Call)

Send DTMF tones (digits 0-9, *, #, A-D) during an active call to navigate IVR menus (e.g., "Press 1 for sales").

2.2 Sending DTMF Tones (In-Call)
Once a call is active, you can send DTMF (Dual-Tone Multi-Frequency) digits.
MicroSIP.exe dtmf:12345

This sends digits 1,2,3,4,5 as RFC 2833 events. Works only during an active call.