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ERROR: 40121

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Missing or Invalid 'call_sid' parameter - Redirect Instruction

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Possible Causes

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  • You did not provide a "call_sid" parameter on your 'redirect' instruction.
  • You provided an invalid value for the "call_sid" parameter.
  • Make certain "call_sid" is provided an is a 34char string starting with CA that represents a live call.

"instruction": "redirect",
"call_sid": "CA0123456789abcdef0123456789abcdef",
"url": ""

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