Overview
This page outlines how Callers categorizes call statuses based on telephony data, real-time analysis, and post-call processing. Each status is determined by specific criteria, as detailed below.No Answer / Busy

- Twilio reports no-answer and busy calls directly.
- SIP calls are classified by their SIP response code: 408, 480, 487 and 610 become No answer, while 486, 600, 603, 604, 607 and 608 become Busy.
Voicemail

- Twilio identification: Twilio flags the call as voicemail based on its telephony signaling.
- Real-time transcript analysis: During outbound calls, Callers analyzes what the other side says - along with beeps - to recognize voicemail greetings.
- Post-call transcript review: After the call ends, the full transcript is re-analyzed to confirm or classify it as voicemail based on its content, for example phrases like “leave a message”. This review isn’t run for inbound or test calls.
Do Not Call

Wrong Number

Call Later

- Explicit request: The recipient says they cannot speak currently and requests a later call (e.g., “call me tomorrow,” “try me later”).
- No meaningful engagement: When there is no genuine two-way exchange, the call defaults to Call later to preserve potential future availability. The exact cases are listed in the Call Later vs Not Interested table below.
Do not call, Wrong number and an explicit Call later request are recognized on outbound calls only. Inbound calls are classified as Interested or Not interested.
Interested / Not Interested

- For genuine two-way conversations, the AI classifier checks the conversation against the agent’s success criteria. A call that meets one of them is marked Interested, and the status shows the name of the criterion that was met.
- Meeting a success criterion takes priority: such a call is Interested even if the recipient also asked to be called later. Otherwise the call is checked for Call later, Wrong number and Do not call, in that order, and is marked Not interested if none of them applies.
- A call is also marked Not interested when the recipient disengages by action rather than words - see the Call Later vs Not Interested table below.