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  5. rtcSetNetworkProfile()


Change the network profile during a test run dynamically to simulate changing network conditions.


profile namestringThe name of the network profile to set or


  • If the value is an empty string “”, then the network will return to its default state for the test
  • If the value “custom” is selected, then the additional optional arguments to this command will be required
parameter (optional)string“latency” or “packet loss”
value (optional)numberThe numerical value to set to the parameter:


  • For “latency”, this indicates the milliseconds of latency
  • For “packet loss”, this indicates the percentage of packet loss


  • profile name should be the exact text of the network profiles that can be selected for tests
  • An empty string profile name will revert the network profile to its default state for the test
  • A “custom” profile can be used with the additional optional arguments
  • Applying multiple “custom” profiles one on top of the other will aggregate them

Code examples:

client .rtcSetNetworkProfile('Regular 4G') /* ... */ /* connect session here */ /* ... */ /* Lower network conditions for 10 seconds */ client.rtcSetNetworkProfile('Poor 3G') .pause(10000) /* Drop the network altogether for 5 seconds */ .rtcSetNetworkProfile('Call Drop') .pause(5000) /* And back to the default again */ .rtcSetNetworkProfile('');

The script below runs a session for a full minute, then configures the network to 5% packet loss, and after an additional minute, reconfigures the network back to its default for an additional minute.

client // In the session .pause(30000) .rtcScreenshot('hi there 1') .pause(30000) // Limit network .rtcEvent('throttle', 'global') .rtcSetNetworkProfile('custom', 'packet loss', 5) // In the session .pause(30000) .rtcScreenshot('hi there 2') .pause(30000) // Back to normal .rtcSetNetworkProfile('') // back to pristine network conditions .rtcEvent('unthrottle', 'global') // In the session .pause(30000) .rtcScreenshot('hi there 3') .pause(30000);

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