The end user's phone number with country code included. Avoid use of special characters and spaces.

Text of the message to be sent to the end user. You are limited to 1600 characters. If you send a very long message, Telesign splits your message into separate parts. Telesign recommends against sending messages that require multiple SMSes when possible.

This parameter specifies the traffic type being sent in the message. You can provide one of the following values -

• OTP (One time passwords)
• ARN (Alerts, reminders, and notifications)
• MKT (Marketing traffic)

This parameter allows you to indicate what phase of the lifecycle you are in when you send a transaction. The options for this parameter are -

• create - For the creation of a new account)
• sign-in For when an end user signs in to their account.
• transact - For when an end user completes a transaction within their account
• update - For when an update is performed, such as an update of account information or similar.
• delete - For when an account is deleted.

This parameter allows you to set a specific sender ID to be used on an SMS message sent to the end user. In order to use a specific sender ID, Telesign must whitelist your selected sender ID values. Be aware that 100% preservation of a sender ID value is not guaranteed. Telesign may override the sender ID value that your end user will receive in order to improve delivery quality or follow SMS regulations in particular countries. In order to use this feature, you must contact Telesign Support and have them enable it for you. We recommend limiting values to 0-9 and A-Z, as support for other ASCII characters varies by carrier.

A customer-generated ID for this transaction. The response simply echoes the value provided for this parameter.

Your end user's IP address (do not send your own IP address). This is used to help Telesign improve our services. IPv4 and IPv6 are supported. For IPv4, the value must be in the format defined by the Internet Engineering Task Force (IETF) in the Internet-Draft document titled Internet Protocol. For IPv6, the value must be in the format defined by the IETF in the Internet-Draft document titled IP Version 6 Addressing Architecture.

A URL where you want delivery reports to be sent related to your request. This overrides any default callback URL that you’ve previously set. The override only lasts for this request.

Whether you are using this service as your primary provider to send this message (”true”) or as a backup after your primary provider failed (”false”). We use this data to optimize message routing.

(India-local traffic only). The ID of the DLT template used for this message. See India DLT Update for more details on the relevant regulations.

(India-local traffic only). The ID of the entity sending this message. See India DLT Update for more details on the relevant regulations.