System Variables

System variables are built-in and always available in flow agents and single-prompt agents. They provide call context, time, and user/agent details.

Time Variables

Variable	Type	Description	Example Value
`current_time`	string	Current time in HH:MM format	`"14:30"`
`current_date`	string	Current date in locale format	`"1/15/2026"`
`current_datetime`	string	Current date and time	`"1/15/2026, 2:30:00 PM"`
`current_timestamp`	string	Unix timestamp in milliseconds	`"1737820200000"`
`current_day`	string	Day of the month	`"15"`
`current_month`	string	Month number (1-12)	`"1"`
`current_year`	string	Four-digit year	`"2026"`
`current_weekday`	string	Full weekday name	`"Wednesday"`

Call Variables

Variable	Type	Description	Example Value
`call_id`	string	Unique identifier for this call	`"call_a1b2c3"`
`call_type`	string	Type of call	`"voice"`
`direction`	string	Call direction	`"inbound"` or `"outbound"`
`call_start_time`	string	ISO timestamp when call began	`"2026-01-15T14:30:00Z"`

User Variables

Variable	Type	Description	Example Value
`user_number`	string	User’s phone number	`"+1 (555) 123-4567"`
`user_number_area_code`	string	Area code from user’s number	`"555"`

Agent Variables

Variable	Type	Description	Example Value
`agent_number`	string	Agent’s phone number	`"+1 (555) 000-0000"`
`agent_name`	string	Human-readable agent name	`"Customer Support"`
`agent_id`	string	Unique agent identifier	`"agent_001"`

Usage

Reference system variables with double curly braces:

"Good {{current_weekday}}! Your call started at {{call_start_time}}."
"You're speaking with {{agent_name}}. Caller: {{user_number}}."

See Template Syntax & Naming for rules and Availability & Context for where system variables apply.

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​Time Variables

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​Agent Variables

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Time Variables

Call Variables

User Variables

Agent Variables

Usage