TextGrid APIWebhooksCopy PageSupply redirected voice instructionswebhook voiceRedirectRequest to a TwiML Redirect target for further instructions. GET uses query values; POST uses form fields. Return TwiML XML.Form DataRequest to the URL in a TwiML Redirect element; defaults to POST; return TwiML XML.CallSidstringrequiredUses incoming CAI or outgoing CAO identifier according to BIncoming. Documented after the SID fix.AccountSidstringrequiredFromstringrequiredCaller: PhoneNumber for incoming calls, OutgoingVoiceNumber for outgoing calls. BIncoming-based mapping documented.TostringrequiredRecipient: OutgoingVoiceNumber for incoming calls, PhoneNumber for outgoing calls. BIncoming-based mapping documented.CallStatusstringenumrequiredin-progressAllowed:in-progressApiVersionstringenumrequired2010-04-01Allowed:2010-04-01DirectionstringenumrequiredinboundoutboundAllowed:inboundoutboundHeadersX-TextGrid-SignaturestringBase64 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.Updated about 8 hours ago Supply instructions after machine detectionSupply redirected voice instructionsDid this page help you?YesNo