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Developer Conference for Communications

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Invalid 'From' Parameter

You attempted to initiate an outbound phone call or message, but the 'From' parameter you supplied was not a valid phone number or alphanumeric sender ID. Twilio accepts phone numbers in E.164 format (i.e. "+1 format"), 10-digit US and Canadian numbers with any combination of non-digit separators, or up to 11 alphanumeric characters [a-zA-Z0-9].