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Umetrix Voice provides the option for mobile-to-mobile testing. In this configuration, one handset will source speech while the other will record speech for ten seconds. The process will alternate in the next ten second cycle. Both the sourcing and recording is handled by a single hardware unit.

• Connect one handset to Channel 1 of the Umetrix Voice hardware unit via audio cable.
• On the Test Setup screen, configure Channel 1 as a Mobile task.
  • Set Session → Uplink Device to Base task on Channel 2.
  • Set Channel Settings → Audio Interface for this Channel to Analog Interface.
• On the Test Setup Screen, configure Channel 2 as a Base task.
  • Set Session → Downlink Device to Mobile task on Channel 1.
  • Set Channel Settings → Audio Interface for this Channel to Analog Interface.
  • Place a call from Handset 1 to Handset 2. The call must be manually answered.
  • Start a new test.
  • The test sequence will start with Handset 1 sourcing data to Handset 2. Data collected at Handset 2 will be replayed in the Channel 2 area of the Nomad interface.
  • In the next cycle, Handset 2 will source data to Handset 1. Data collected at Handset 1 will be replayed in the Channel 1 area of the Nomad interface. This pattern continues throughout the test.
  • During testing, adjust volume using the Settings → Levels dialog such that the Ins Gain reading for each channel falls between -12 dB and -3 dB. The Input and Output sliders should sit within the Normal Operating Range values displayed.
  • End the test when desired.