Compliance · South Korea
Voice Call Compliance in South Korea
A practical overview of the rules that affect voice call messaging and marketing in South Korea, with a checklist before you launch.
Key Rules for Voice Calls in South Korea
Advertising calls are covered by the same Network Act consent rules, and consumers can block marketing calls through national do-not-call services.
Some Asian markets operate do-not-call registers for marketing calls and messages, so lists should be checked before voice campaigns.
Data Protection
The Personal Information Protection Act (PIPA), enforced by the Personal Information Protection Commission, is one of the strictest privacy laws in Asia.
Keep a record of how each contact was collected, what they agreed to and when, and make it easy for them to withdraw consent.
Practical Checklist
- Check whether the call is promotional or a service call, as the rules differ.
- Use permitted calling numbers and caller ID, and never hide or spoof the calling number.
- Screen numbers against any national do-not-call register before promotional campaigns.
- Call only within permitted hours in the recipient's time zone and keep recorded messages short.
- Offer an easy way to stop further calls and record call consent where required.
Contact data
Format numbers in international E.164 format with the +82 country code, remove duplicates and invalid numbers, and keep consent records linked to each number.
Timing and Language
South Korea follows the Asia/Seoul time zone (UTC+09:00 in October 2026). The usual working week is Monday to Friday. Schedule voice call campaigns for the recipient's local daytime hours, avoid public holidays and religious observances that matter to your audience, and convert send times from IST before scheduling.
In Seoul, customers commonly use Korean, with English. Messages in the customer's preferred language usually perform better, but check how local-language text affects character counts (for SMS) and template approval (for WhatsApp).
Digital Habits and Channels in South Korea
South Korea has among the world's fastest mobile networks, and KakaoTalk is used by almost everyone; Kakao's business message service (AlimTalk for notifications) often replaces SMS. Korean law requires advertising messages to start with the '(광고)' advertising label, include the sender's name and contact details, and obtain separate consent for messages sent between 9 pm and 8 am.
Cards, Kakao Pay, Naver Pay and Samsung Pay dominate payments, and Naver and Coupang are major shopping platforms. Seollal (Lunar New Year) and Chuseok, when gift sets are exchanged, are the biggest retail seasons.
South Korea's economy is led by large conglomerates such as Samsung, Hyundai, SK and LG, which make semiconductors, smartphones, cars, ships and batteries, and the country has very high 5G coverage. VAT is 10%, and prices are in won. Most Koreans live in apartment complexes and use fast delivery services, so time-sensitive delivery updates and coupons are popular. Search and shopping start on Naver as well as Google.
Advertising Alongside Messaging
Advertising follows the Act on Fair Labeling and Advertising, and the Fair Trade Commission requires clear disclosure of paid influencer content.
This guide is general information, not legal advice, and reflects our understanding as of October 2026. Rules change, so we check current requirements for South Korea before every launch.
Planning voice call campaigns for South Korea?
We check the rules, set up sender requirements and run compliant campaigns.
Voice Call in South Korea: FAQs
Do I need consent to send marketing voice call messages in South Korea?
In most cases, yes, or at least an existing customer relationship and a clear opt-out. Advertising calls are covered by the same Network Act consent rules, and consumers can block marketing calls through national do-not-call services.
Are automated voice calls allowed in South Korea?
Automated and prerecorded calls are usually more tightly regulated than live calls. Check consent, calling hours and any national do-not-call register before a campaign.
Can DND Teams run voice call campaigns to South Korea?
Yes. We are based in Bhopal, India, and run campaigns for international markets remotely, after checking the current rules, sender requirements and coverage for South Korea.
Is this legal advice?
No. This guide is general information to help you plan. Regulations change and their application depends on your business, so take local legal advice for significant campaigns.
Related Guides and Services
Other channels in South Korea
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