NEW FEATURE RELEASE: RTB Predefined Phone Number Option
Release Date:
Location: RTB page → Parameters section
What’s New
RTB formulas can now use a Predefined Phone Number instead of relying on an API response.
This gives teams consistent call routing when an RTB integration does not provide a phone number.
New Options:
Use Predefined Phone Number (skip phone mapping):
Checkbox that tells the system to skip phone mapping and use a fixed number for all RTB calls.
Predefined Phone Number:
Input field for entering the number (E.164 format – e.g.
+15551234567).
Behavior & Validation:
If unchecked, phone mapping is still required.
If checked, only payout and duration mappings must be defined.
Backend and RTB execution services apply the flag uniformly to ensure reliable routing.
Why This Matters
Some RTB APIs don’t return a destination number, which can interrupt call flow.
This feature keeps calls running smoothly by letting users define a fixed number directly within RTB.
It’s also helpful for testing, staging, and controlled routing flows that demand predictable behavior.Example Use Cases
Partner APIs that omit the
phonefieldTesting or sandbox campaigns using a consistent test number
Campaigns that require uniform tracking numbers for analytics
Getting Started
Go to the RTB page.
Open the Parameters section.
Check Use Predefined Phone Number (skip phone mapping).
Enter the Predefined Phone Number in E.164 format.
Save the RTB formula – no further mapping changes required.