TextGrid APIWebhooksCopy PageSupply initial voice instructionswebhook voiceInstructionsRequest for initial incoming/outgoing call instructions. Return TwiML XML. GET uses query values; POST uses form fields.Query ParamsCallSidstringAccountSidstringFromstringTostringCallStatusstringenumringingAllowed:ringingApiVersionstringenum2010-04-01Allowed:2010-04-01DirectionstringenuminboundoutboundAllowed: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 initial voice instructionsSupply instructions after DTMF inputDid this page help you?YesNo
