DialNexa Post-Call Analysis

Configure DialNexa post-call analysis fields for text, selector, boolean, number, and DateTime extraction from completed calls.

DialNexa post-call analysis extracts structured fields from a completed call. Define the extraction fields here; review the extracted values per call in Post-Call Analysis Results. Users can add, edit, delete, and reorder text, selector, boolean, number, and DateTime fields so Call History and exports show outcomes such as summary, call result, customer interest, age, qualification, callback time, or next step.

If operations needs a column later, define the field before the campaign. Future-you has enough to do.

Before You Begin

Define the business decision each field supports, its output type, allowed values, and the transcript evidence needed to answer it. Avoid fields that are merely interesting but never used.

Supported Field Types

Choose the type that matches the value you need.

Type	Best for	Example
Text	Free-form summaries or notes.	call_summary
Selector	One value from a known set.	call_outcome: Resolved, Escalated, Follow-up Required
Boolean	True or false outcomes.	customer_interested
Number	Numeric values.	customer_age or payment amount
DateTime	Callback, appointment, renewal, or follow-up timing.	callback_datetime returned as UTC ISO 8601, such as 2024-06-17T10:30:00Z

Use DateTime when another system or a workflow needs a schedulable time. In the field description, ask for the value in UTC ISO 8601 format so the extracted result can be parsed consistently.

Where Results Appear

Post-call fields become operational data after the call.

Call detail custom section

Custom extracted values appear on the call detail page.

CSV exports

Exports can include extracted fields for reporting.

Workflow decisions

Workflow paths can reason about call attributes when configured.

QA review

Annotations and transcript review can explain why a field was wrong.

Post-Call Extraction LLM

The Post Call Analysis panel includes a model settings control for the LLM used by post-call extraction. This is separate from the live conversation model so teams can tune completed-call extraction without changing how the agent speaks during the call.

Setting	Behavior
Default	DialNexa selects GPT-4o Mini when it is available.
Allowed dashboard choices	GPT-5.4 Nano, GPT-4.1 Nano, and GPT-4o Mini.
Published versions	Published versions can disable edits. Update a draft version before changing extraction fields or extraction model.
API field	Integrations can set post_call_analysis_llm_id when creating or updating agents.

Use a stronger extraction model when the transcript is long, the fields depend on reasoning across multiple turns, or selector values need careful evidence. Keep the live model and post-call extraction model aligned only when you want both tasks to share the same cost and behavior profile.

Write Strong Extraction Fields

1. Name the field like a column

   Use names that will make sense in exports.

2. Describe the evidence

   Tell the extractor exactly what part of the conversation proves the value.

3. Use selector options for finite outcomes

   Do not ask for free text when operations needs a clean report.

4. Use DateTime for schedulable callbacks

   Ask for UTC ISO 8601 output when the caller gives a callback time, appointment time, or other follow-up date.

5. Test on real calls

   Check whether the transcript contains the evidence needed to extract the field.

Extraction Problems

Field is empty

The transcript may not contain the fact, or the description may be too vague.

Selector returns unexpected value

Use clearer allowed options and descriptions.

Boolean feels inconsistent

Define what counts as true and false.

Callback time cannot schedule a workflow

Use the DateTime field type and describe the expected UTC ISO 8601 output. Workflow Time nodes should point at a DateTime PCA field.

Editing is disabled

Published versions protect live settings. Edit a draft version.

Verify Post-Call Analysis

Run calls that should produce different results, including an unknown or missing answer. Confirm the Call Detail page and exports show the correct type and value without inventing information.

Related Reading

Post-Call Analysis Results

Review extracted fields.

Exporting Call Data

Export analysis columns.

Call Detail Page

Inspect one call.

Text Analysis Video

Watch how to configure a text result.

Selector And Boolean Video

Watch how to configure constrained results.

Number And Date-Time Video

Watch how to configure typed numeric and date-time results.