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Japan: SMS Features & Restrictions

Au KDDI (44007) & Rakuten Mobile (44011)

  • Alphanumeric Sender IDs are supported,
  • numeric Sender IDs will be changed to randomised numeric senderIDs.

NTT Docomo (44010)  & Softbank Mobile (44020)

  • Alphanumeric Sender IDs are supported,
  • numeric Sender IDs will be changed to NXSMS

Content restriction:

Gambling related content are not supported towards Japan all networks.

Messages classified as illegal by the local networks are either discarded completely or part of the illegal text will be removed

Unicode SMS:

Japanese characters unicode SMS are supported.

And for other languages it depends on the handsets.

Concatenated SMS: 

Concatenated messages are supported

Delivery Receipts:

Network level delivery receipts are supported.

 

Links:

Global SMS Features Overview (Outbound only)

Global SMS Numbers Features Overview

 

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