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Status
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Status Description
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Messages delivered to handset
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The message has been delivered successfully.
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Submitted
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This is the initial status until the message is either Delivered or another status is returned.
There may be a short delay, especially when sending to many mobile numbers, between submitting your message and it being sent by the SMS provider.
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Failed
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The message failed to deliver to the recipient’s mobile device.
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Buffered
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The message failed initially and is now being retried.
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Expired
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The message expired as it could not be delivered within the validity period which is usually 3 days.
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Rejected
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The message was rejected by the Short Message Service Centre.
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Error
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The message could not be processed by the Short Message Service Centre this time.
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Unknown
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This is usually generated after 24 hours if no status has been returned from the Short Message Service Centre or they returned a non-standard status code.
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Messages sent to unreachable recipient
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The mobile number was deemed unreachable e.g., the number is invalid.
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Messages rejected by operator
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The message format and/or mobile number was incorrect and not recognised by operator.
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Messages not delivered during validity period
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The message could not be delivered within the validity period set by the SMS provider which is usually 3 days.
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Messages queued for delivery at Dynmark
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The message is still inside the SMS provider platform and is waiting for submission to the mobile network.
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Messages queued for delivery at SMSC
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The message has left the SMS provider platform and been submitted successfully to the Short Message Service Centre.
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Messages sent to handset with full SIM
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Most mobile devices forward the message from SIM card to phone memory. This rare error may occur on older mobiles which only keep them in the SIMS card.
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Messages SMSC was not able to send
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The Short Message Service Centre was not able to find the mobile device’s network or it is/was down. This may not be the network itself, but the transmitter tower dropping message packets.
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Messages to user with no credit
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Used for premium messaging. Networks usually sends a free text prompt to top-up before attempting to send the message again.
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Messages with no response from Mobile Operator
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When a message needs to be forwarded from one operator to another, issues may occur between them and this error could be returned if the retry schedule has exceeded the allowed limit.
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Messages deleted by user
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Message status was manually updated to “deleted” from the SMS provider platform. This cannot be resent.
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Messages refused
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Message has been refused by the network without attempting to forward to another network or mobile device.
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