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Includes standard SMPP, and Ruach HTTP GW error codes. Four newly added codes (1048, 1049, 1079, 1080) are inserted in numeric series and highlighted.

Standard SMPP Error Codes

Switch Error Codes

Switch HTTP GW Error Codes

MO Error Codes

Mobile-Originated (MO) delivery outcome codes as reported on the inbox / DLR path. Anything not in this list renders as literal “Code <N>” — the default branch of DescribeErrorCode.