Error and Warning Dictionary

• 10001: Account is not active
• 10002: Trial account does not support this feature
• 10003: Incoming call rejected due to inactive account
• 11100: Invalid URL format
• 11200: HTTP retrieval failure
• 11205: HTTP connection failure
• 11206: HTTP protocol violation
• 11210: HTTP bad host name
• 11215: HTTP too many redirects
• 12100: Document parse failure
• 12101: Invalid Twilio Markup XML version
• 12102: The root element must be Response
• 12200: Schema validation warning
• 12300: Invalid Content-Type
• 12400: Internal Failure
• 13201: Dial: Cannot Dial out from a Dial Call Segment
• 13210: Dial: Invalid method value
• 13212: Dial: Invalid timeout value
• 13213: Dial: Invalid hangupOnStar value
• 13214: Dial: Invalid callerId value
• 13215: Dial: Invalid nested element
• 13216: Dial: Invalid timeLimit value
• 13221: Dial->Number: Invalid method value
• 13222: Dial->Number: Invalid sendDigits value
• 13223: Dial: Invalid phone number format
• 13224: Dial: Invalid phone number
• 13225: Dial: Forbidden phone number
• 13230: Dial->Conference: Invalid muted value
• 13231: Dial->Conference: Invalid endConferenceOnExit value
• 13232: Dial->Conference: Invalid startConferenceOnEnter value
• 13233: Dial->Conference: Invalid waitUrl
• 13234: Dial->Conference: Invalid waitMethod
• 13235: Dial->Conference: Invalid beep value
• 13236: Dial->Conference: Invalid Conference Sid
• 13237: Dial->Conference: Invalid Conference Name
• 13238: Dial->Conference: Invalid Verb used in waitUrl TwiML
• 13310: Gather: Invalid finishOnKey value
• 13312: Gather: Invalid method value
• 13313: Gather: Invalid timeout value
• 13314: Gather: Invalid numDigits value
• 13320: Gather: Invalid nested verb
• 13321: Gather->Say: Invalid voice value
• 13322: Gather->Say: Invalid loop value
• 13325: Gather->Play: Invalid Content-Type
• 13410: Play: Invalid loop value
• 13420: Play: Invalid Content-Type
• 13510: Say: Invalid loop value
• 13511: Say: Invalid voice value
• 13520: Say: Invalid text
• 13610: Record: Invalid method value
• 13611: Record: Invalid timeout value
• 13612: Record: Invalid maxLength value
• 13613: Record: Invalid finishOnKey value
• 13710: Redirect: Invalid method value
• 13910: Pause: Invalid length value
• 14101: Invalid "To" attribute
• 14102: Invalid "From" attribute
• 14103: Invalid Body
• 14104: Invalid Method attribute
• 14105: Invalid statusCallback attribute
• 14106: Document retrieval limit reached
• 14107: SMS send rate limit exceeded
• 14108: From phone number not SMS capable
• 14109: SMS Reply message limit exceeded
• 14110: Invalid Verb for SMS Reply
• 14111: Invalid To phone number for Trial mode
• 20001: Unknown parameters
• 20002: Invalid FriendlyName
• 20003: Permission Denied
• 20004: Method not allowed
• 20005: Account not active
• 20006: Access Denied
• 21201: No 'To' number specified
• 21202: 'To' number is a premium number
• 21203: International calling not enabled
• 21205: Invalid URL
• 21206: Invalid SendDigits
• 21207: Invalid IfMachine
• 21208: Invalid Timeout
• 21209: Invalid Method
• 21210: 'From' phone number not verified
• 21211: Invalid 'To' Phone Number
• 21212: Invalid 'From' Phone Number
• 21213: 'From' phone number is required
• 21214: 'To' Phone Number cannot be reached
• 21215: Account not authorized to call phone number
• 21216: Account not allowed to call phone number
• 21217: Phone number does not appear to be valid
• 21218: Invalid ApplicationSid
• 21219: 'From' phone number not verified
• 21220: Invalid call state
• 21401: Invalid Phone Number
• 21402: Invalid Url
• 21403: Invalid Method
• 21404: Inbound phone numbers not available to trial accounts
• 21405: Cannot set VoiceFallbackUrl without setting Url
• 21406: Cannot set SmsFallbackUrl without setting SmsUrl
• 21407: This Phone Number type does not support SMS
• 21450: Phone number already verified for your account
• 21451: Invalid area code
• 21452: No phone numbers found in area code
• 21453: Phone number already verified for another account
• 21454: Invalid CallDelay
• 21457: AreaCode not supported
• 21458: PhoneNumber provisioning type mismatch
• 21501: Resource not available
• 21502: Invalid callback url
• 21503: Invalid transcription type
• 21504: RecordingSid is required.
• 21601: Phone number is not a valid SMS-capable inbound phone number
• 21602: Message body is required
• 21603: 'From' phone number is required to send an SMS
• 21604: 'To' phone number is required to send an SMS
• 21605: Maximum SMS body length is 160 characters
• 21606: The 'From' phone number provided is not a valid, SMS-capable inbound phone number for your account
• 21608: The Sandbox number can send messages only to verified numbers