Voice Broadcast success rates average around 70%, but your actual delivery rate may vary depending on the quality of your contact list. Invalid numbers, unreachable numbers, restricted regions (non-US/CA), and carrier-blocked lines can all reduce the overall success rate.
Below is a full breakdown of the possible call results and error codes you may see when sending a Voice Broadcast.
✅ Successful Call Results
Name | Description |
AM | Answering Machine - The call was answered by an answering machine. |
LA | Live Answer - The call was answered by a person. |
XFER | Transferred - The call was transferred |
XFER_LEG | The call became part of a transfer. |
🚫 Failed Call Results
BUSY
What it means:
The carrier returned a busy signal when attempting the call.
Possible Causes:
The contact was already on another call.
The network returned a busy tone due to temporary congestion.
The number rejects simultaneous incoming calls.
Solutions:
Retry the campaign later.
Increase the retry count in your broadcast settings (if applicable).
Remove numbers that repeatedly return BUSY.
DNC (Do Not Call)
What it means:
The number is listed on a Do Not Call registry.
Possible Causes:
The contact’s number is on a federal, state, or internal DNC list.
The number was previously opted out.
Solutions:
Remove the number immediately from your list.
Never attempt to call this number again.
Consider list scrubbing before your broadcasts.
NO_ANS (No Answer)
What it means:
The call rang, but no one answered and voicemail did not pick up.
Possible Causes:
The contact declined the call.
The phone rang out without reaching voicemail.
The contact’s voicemail is not set up.
Solutions:
Retry the broadcast at different times of the day.
Use multiple call attempts.
Remove numbers that continually fail to answer.
INTERNAL_ERROR
What it means:
The system encountered an internal issue that prevented the call from being completed.
Possible Causes:
A temporary platform issue.
Incorrect campaign configuration.
Unexpected failure in the automated dialing process.
Solutions:
Retry the campaign.
If the issue repeats, contact Support with the Call ID.
Double-check campaign settings before relaunching.
CARRIER_ERROR
What it means:
The local carrier rejected the call.
Possible Causes:
The carrier is overloaded or temporarily rejecting high-volume calls.
Dialing speed to a specific area is too fast.
The phone number is invalid, disconnected, or inactive.
The carrier flagged the call as suspicious/spam-like.
Solutions:
No action needed — the system will retry.
If errors persist, validate the number or reschedule the campaign.
CARRIER_TEMP_ERROR
What it means:
The carrier returned a temporary error. The message will be retried automatically.
Possible Causes:
Weather or regional network issues.
Short-term carrier outages or network instability.
Solutions:
No action needed — the system will retry.
If errors persist, validate the number or reschedule the campaign.
UNDIALED
What it means:
The system did not attempt to dial this number.
Possible Causes:
The number was invalid, incorrectly formatted, or missing digits.
The number is outside supported regions (non-US/CA).
The number is restricted by campaign settings (e.g., time windows, DNC rules).
The system detected a compliance or formatting issue before dialing.
Solutions:
Validate the list for format and region.
Remove non-US/CA numbers if your plan does not support international calls.
Check campaign dialing rules and sending windows.
Correct or remove invalid phone numbers.