Sending SMS to South Korea

  • Guarantee the highest success rate for the traffic sending to Korea
    • (1)We have accumulated full NPDB of three mobile operators for 17 years of experience
      • In Korea, there is Number Portability service provided by main three operators
      • E.g. 010-1234-5678 number, originally belonging to KT can switch to another operator (SKT or LGU+)
      • Fast transmission to the connected operator based on all NPDB information
        (NPDB : Number Portability data base)
    • (2)Supporting messages receipt without blocking from the SPAM policy
      • On 2014, Offered Guideline about transmission of advertising message
      • On 2015, the policy has been revised for filtering SPAM (Enforced on October 2015)
        • ·Policy enforcement to prohibit changing sender ID randomly
        • ·Service implementation to block sending message with stolen number
      • =>We provide a guideline to the customer to send a message which is fitted in the government policy
      • <In case of sending SMS with unavailable sender id or
        sender id which is not match to the numbering plan in Korea >[Failure of Detailed rules] [Proper examples]
    • (3)Possible to send to the minor operators
      • Transmission to the phones connected with KT Powertel , Ann Phone and Internet Phone
      • Numbering system according to the kind of service
        • ·SKT, KT, LGU+ : +82 – 10 – XXXX – YYYY
        • ·Internet phone : +82 – 70 – XXXX – YYYY
        • ·Seoul Landline/ Internet phone : +82 – 2 – XXXX – YYYY
        • ·Other destinations Landline / Internet phones : +82 – 31 – XXX – YYYY
          • ※Other destinations: Gyeonggi (31), Incheon (32), Gangwon (33) and Chungnam (41), Daejeon (42),
            Chungbuk (43), Sejong (44), Busan (51), Ulsan (52), Daegu (53), Gyeongbuk (54), Gyeongnam (55),
            Jeonnam (61), Gwangju (62), Jeonbuk (63) and Jeju (64)
        • ·KT Powertel : +82 – 13 – XXXX
    • (4)Tracing the reason of failed message and issuing weekly report for increasing success rate
      • Delivery rate improvement 70% -> 96%
        • ·The actual successful delivery rate is considered as 100%
          because the failed message of 4% is caused by the reasons below.
        • ·The reason of Failure : Invalid phone numbers or handset power off
      • Delivery rate improvement grounds (failure cause analysis and response)
        • ·Sender ID regulations compliance guide
        • ·Solution for Number Theft Protection Service
        • ·Error code status for non-existent numbers
        • ·Special solution for multilingual messages that are delivered incorrectly
  • Supporting to send messages in multi-language and higher quality service only in Korea
    • (1)All languages supported
      • You may send messages in English, Japanese, Chinese etc.
      • Full multilingual coverage (send messages in any language to any country of the world).
      • [Other company] [SureM]
      • [Other company] [SureM]
      • [Other company] [SureM]
    • (2)Unlike any other A2P providers, we can deliver 140 byte SMS to Korean handsets!
    • (3)Individual 1:1 Customer Management service (with designated Account Manager)
      • Your personal Account Manager is always ready to assist on any possible enquiries and provide the information on successfully transmitted, non-transmitted messages, delivery rate and total indicators in a report, based real-time monitoring system and provide consultations based on the data.
    • (4)Weekly reports
      • Transmission details, delivery rate information provided
Advertisements

Korean LMS : similar to concatenated SMS?

What happens when I send a really long message through A2P line? Is it delivered in one piece to cell phone? Or is it cut into parts and delivered as multiple SMS? If so is the order correct?

Every company that needs to send long messages for whichever purpose faces these questions. And truth is – depending on a lot of factors the answer will be different.

Not all countries and networks support the so-called Concatenated SMS (C-SMS, Concats).

Concatenated SMS – a service, allowing delivery of SMS longer than the standard 160 GSM characters in one piece to the handset.

Number of SMS

GSM characters

Unicode characters

1 standard SMS

160

70

2 concatenated SMS

306

134

3 concatenated SMS

459

201

4 concatenated SMS

612

268

Basically, the process involves breaking the message first into multiple parts and then reattached together in the correct order into one message when delivered to the handset.

There is no fixed limit for concatenated SMS, depending on the device capacity it may vary. As for the destination and network – here’s the catch. CDMA networks do not support concatenation. So the messages will be delivered in parts to the handset, which is why for some countries SMS Hub providers always mention that they can not guarantee 100% delivery of the messages over 160 bytes (e.g. USA).

Another case where concatenation is not supported – South Korea. South Korea has a unique service called LMS (Long Message Service). Unlike other countries, for A2P providers Korean message length limit is different :

Message type

GSM characters

Unicode characters

1 standard SMS

90

45

1 standard LMS

91~2000

46~1000

From technical side, the process does not involve concatenation, the message is delivered in one whole piece from the Sender all the way to the handset.

The biggest difference and the benefit of LMS over C-SMS is it’s price. While A2P SMS providers charge the total price as SMS price x (Num. of parts in C-SMS ), Korean providers offer single pricing for LMS. It means, that no matter how long the message you sent is, 200 or 2000 bytes – you still pay the same price, while with C-SMS for really long promotional text you might have to pay 10 x SMS price.