Supply instructions after machine detection

webhook

voiceMachineDetection

Instruction request after answering-machine detection. AnsweredBy describes the result; reason is conditional. Return TwiML XML.

Form Data

Instruction request after answering-machine detection, sent to CallBackUrl; successful response supplies more TwiML.

CallSid

string

required

Outgoing CAO call identifier in the inspected outbound machine-detection sender. Documented after the SID fix.

AccountSid

string

required

From

string

required

string

required

CallStatus

string

enum

required

Allowed:

ApiVersion

string

enum

required

Allowed:

Direction

string

enum

required

Allowed:

AnsweredBy

string

enum

required

Values emitted by the inspected Infobip branches; not a universal enum for other providers.

Allowed:

reason

string

Optional reason, emitted only when nonempty. Exact lowercase name.

Headers

X-TextGrid-Signature

string

Base64 HMAC-SHA1 with the account WebhookSecret. GET signs the full requested URL including query parameters once; POST signs the original URL plus the raw body. Apply the documented non-ASCII escaping. See signature-verification.md.

Response

200Response marked successful by these handlers.