Place a voice call from a SIM
Place a voice call from a real SIM, measure how long it takes to connect, and score the audio quality.
Call another SIM in the platform for an end-to-end voice test, or any number. Hold the call for a chosen duration, optionally play an audio file into it, and record it to compute the audio MOS (Mean Opinion Score, the standard audio quality score).
Parameters
| Parameter | Required | Description |
|---|---|---|
| Access technology | No | Network technology, including VoLTE (voice over 4G) profiles. Default: automatic. |
| Call Receiver Number | Yes | The number to call. Supports variables. |
| Max wait time | No | How long to wait for the call to connect. Default: 30. |
| Call duration | No | How long to hold the call once connected. Default: 10. |
| Play file during call | No | Play a reference audio file into the call (used for MOS scoring on the receiving side). |
| Record call | No | Record the call audio. Default: off. |
| Compute Audio MOS | No | Score the recorded audio against a reference file. Requires recording. |
| Call should fail | No | Invert the verdict, for barred numbers. |
Results and metrics
In the action report (result):
| Field | Description |
|---|---|
wait_connect_duration_in_seconds | Time for the call to connect. |
post_dial_delay_in_seconds | Delay between dialing and ringing. |
call_duration_in_seconds | Time the call stayed up. |
total_duration_in_seconds | End-to-end action duration. |
ceer_response | The network's call end report, for diagnosing drops. |
access_technology_report | The technology used for the call. |
In Analytics, each run feeds the call measurement with cellular_call_duration_seconds, cellular_call_connect_duration_seconds, cellular_call_post_dial_delay_seconds, and duration_seconds, tagged by status, antenna, and access technology.
What's next?
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