Call Progress Analysis
The Call Progress Analysis (CPA) tab allows you to configure how Webex CC analyzes outbound calls to detect answering machines, silence, and speech patterns.
Availability
The CPA tab is only available for voice channel campaigns with a type of Progressive or Predictive. It does not appear on Preview or IVR campaigns.
Toggle Settings
The CPA tab includes three toggles with a strict dependency chain — each toggle requires the one above it to be enabled first.
Call Progress Analysis
Enables CPA execution for this campaign. This is the top-level toggle that must be enabled before any other CPA settings take effect.
Answering Machine Detection
Enables the answering machine detection algorithm within CPA. Requires CPA to be enabled.
Terminating Tone Detection
Waits for the voicemail termination tone before concluding the call analysis. Requires AMD to be enabled.
Disabling a parent toggle automatically disables all dependent toggles. For example, disabling CPA will also disable AMD and Terminating Tone Detection.
Advanced Parameters
The Advanced Parameters section allows fine-tuning of the CPA analysis behavior. All values are in milliseconds. Leaving a field blank uses the Webex CC default for that parameter.
| Parameter | Description | Range (ms) | Webex Default (ms) |
|---|---|---|---|
| Analysis Period | Number of milliseconds spent analyzing the call | 1,000 – 10,000 | 1,000 |
| Max Termination Tone Analysis | Maximum time the dialer analyzes an answering machine voice message looking for a termination tone | 1,000 – 60,000 | 30,000 |
| Max Time Analysis (Dead Air) | Maximum time allowed for analysis before identifying the call as dead air | 1,000 – 10,000 | 3,000 |
| Minimum Silence Period | Minimum silence required to classify a call as voice detected | 100 – 1,000 | 608 |
| Minimum Valid Speech | Minimum voice duration required to classify a call as voice detected | 50 – 500 | 112 |
Advanced Parameters are only applied when Call Progress Analysis is enabled. If CPA is disabled, any saved values will have no effect until CPA is turned on.
If you are unsure which values to use, leave all Advanced Parameters blank to use the Webex CC defaults. Only adjust these values if you have specific requirements based on your call patterns.
Saving Changes
Click Save Changes to apply your configuration. If the campaign is currently running, the updated CPA settings are sent to Webex CC immediately.