VoIP Toolbox

Browser-Based VoIP Workbench

Zero-Setup Browser Call Testing for SIP & Microsoft Teams

Stop messing with local softphone configs. Instantly trigger calls from any SIP source, test Teams Direct Routing, send mid-call DTMF actions, and convert live tests into automated pipelines with one click.

Launch Call Sandbox View Documentation

Why this replaces a local SIP client

Engineering teams use this workbench to prove routing, walk IVRs, and capture timings without installing MicroSIP, Linphone, or a lab phone.

  • No Softphone Config Nightmare

    Skip local SIP client setups, network tweaks, and credential swaps. Launch complex test calls directly from your browser in seconds.

  • SIP & Teams Direct Routing

    Flexible endpoint testing. Route calls from any custom SIP From address to any pre-configured target or MS Teams tenant to verify routing rules.

  • Interactive In-Call Control

    Go beyond simple connection tests. Inject DTMF tones, test IVR prompts, and set up delayed in-call actions directly within the live console.

  • 1-Click Test Automation

    Turn manual troubleshooting into permanent test suites. Instant historical logs capture exact timings and actions, converting them into automated scenarios.

How it works

Define the identity, run the call in the browser, then save the sequence as a Pulse test.

  1. Define Target & Identity

    Choose your target SIP endpoint or Teams Direct Routing tenant, then define any arbitrary From username to simulate incoming traffic.

  2. Run Live Interactive Call

    Execute the call in-browser. Navigate IVRs live, send mid-call DTMF keypresses at specific timestamps, and inspect real-time call logs.

  3. Convert to Automated Scenario

    Click Build Test to turn that sequence into a Pulse scenario for continuous monitoring and CI/CD pipelines.

Ready to drop the local softphone?

Open the call sandbox, hit a SIP endpoint or Teams Direct Routing number, and keep the evidence in Pulse.

Launch Call Sandbox