South Korea SMS Features and Restrictions
Overview
Vonage is using Adaptive Routing in South Korea through a selection of different high-quality suppliers.
Sender ID
Sender ID is not supported and will change to a random long number to ensure delivery.
Content
Message Content
Every message will automatically have either of the following text added:
- "[Web 발신]" - Means SMS sent from web
- "[국제발신]" - Means SMS sent from abroad
Message Length
Message length is 140 bytes (140 characters in GSM-7 or 70 characters in Unicode), including the leading text (see Message Content above).
Concatenated Messages
Concatenated messages are not supported to KTF and LGU+ operators, as operators do not provide concatenated SMS service. Concatenated SMS will be received in parts for these operators. Receiving the messages in order may not be guaranteed.
LMS is supported for SK Telecom operator only and concatenated messages will be received as a MMS. Vonage will bill those messages in the same way that SMS concatenation works in other destinations. (LMS length 2000 char GSM or 1000 Char UC supported.)
Illegal Content
Illegal content, especially gambling and adult-related content, is not allowed to all Korean networks.
Spamming
Spamming or sending suspicious messages are not allowed. These are serious issues in South Korea and it may trigger suspending your account with investigation from local authorities.
Unicode
Korean networks support character encoding EUC-KR. Delivery of Chinese characters not guaranteed.
Binary
Binary messages are not supported.
Other Features and Restrictions
Delivery Receipts
Delivery Receipts are provided, however, they are not handset-generated and only indicate that the network has received the message.
Additional Information
For more information, see the following articles:
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