- What data is available before the call starts?
- What data can the agent collect or use during the call?
- What data only becomes available after the call ends?
The Data Flow
Stage 1: Data Available Before The Call
This data can be used in the greeting and prompt immediately.Contact data
If the caller matches a known contact, these values are available before the call starts. Examples:{{contact.first_name}}{{contact.email}}{{contact.phone_number}}
Dynamic Context
Dynamic Context lets you fetch JSON from your own systems before the conversation begins. Examples:{{account_tier}}{{open_tickets}}{{last_order_status}}
Built-in system values
These exist in every conversation. Examples:{{agent_uuid}}{{current_datetime}}{{direction}}{{timezone}}
Stage 2: Data Collected During The Call
During the conversation, the agent can gather details that were not known at the start. Typical examples:- order number
- preferred appointment date
- department choice
- issue description
- to continue the conversation more accurately
- to supply the inputs required by a tool
Stage 3: Tool Inputs And Tool Results
Tools use the live conversation state. That means the agent can combine:- contact fields
- pre-call context
- built-in variables
- values collected from the caller
What tools can do with that data
| Tool type | Typical input source | Typical outcome |
|---|---|---|
| Transfer | Caller intent, department, urgency | Routes the conversation to another destination |
| Booking | Date, time, contact details | Creates or updates an appointment |
| Custom Action | Collected values plus context variables | Calls your external API and uses the response in the live conversation |
| Web Search | Current question | Returns external information for the current answer |
Important limitation
Custom action results are part of the current conversation flow. They help the agent answer the caller or decide the next step. Do not treat them as a general post-call variable store. For reusable values after the conversation ends, use Gather Insights and Post-Call Automation.Stage 4: Data Created After The Call
After the conversation ends, the platform can analyze the transcript and events. This stage creates:- goal results
- gathered insights
{{dyn_*}}variables used in post-call notifications- follow-up tasks and downstream automations
{{dyn_issue_summary}}{{dyn_next_steps}}{{dyn_appointment_date}}
- notification emails
- follow-up tasks
- reporting
- downstream systems connected through webhooks
What Can Be Used Where
| Location | Contact data | Dynamic Context | Built-in system values | Live collected values | {{dyn_*}} post-call values |
|---|---|---|---|---|---|
| Greeting | Yes | Yes | Yes | No | No |
| Prompt | Yes | Yes | Yes | No direct template usage before collected | No |
| Live tools | Yes | Yes | Yes | Yes | No |
| Notification templates | Customer fields only | No | Conversation fields only | No direct live-call state | Yes |
Notification templates do not reuse the live-call prompt context. Use post-call variables such as
{{customer_name}}, {{customer_email}}, {{customer_number}}, {{conversation_date}}, {{conversation_direction}}, {{conversation_url}}, and {{dyn_*}}.Recommended Pattern
Use the right data source for the right job:- use contacts for stable customer profile data
- use Dynamic Context for fresh business-system context before the call
- use tool inputs for live actions during the call
- use Gather Insights for structured analysis after the call
Common Mistakes
Trying to do everything with one variable source
Trying to do everything with one variable source
Use contact data, Dynamic Context, live tool inputs, and post-call insights for different jobs. They are not interchangeable.
Expecting Dynamic Context to refresh mid-call
Expecting Dynamic Context to refresh mid-call
Dynamic Context runs before the conversation starts. If you need fresh information during the call, use a live tool such as a Custom Action.
Using post-call variables in the live prompt
Using post-call variables in the live prompt
{{dyn_*}} values are created after the call ends. Use them in Post-Call Automation, not in the greeting or prompt.Next Steps
Variable Sources
See each source individually
Dynamic Context
Add pre-call context from your systems
Custom API Tools
Use live data during the conversation
Post-Call Automation
Turn post-call values into follow-up actions