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China: SMS Features & Restrictions

 

China is one of the largest and fastest growing mobile markets in the world, but, it is also one of the most difficult countries to reach as many filters are in place to block messages in and out of the country. Cheap links into China will simply not work and majority of the messages will be rejected or blocked. Thanks to Nexmo’s local carrier links, you can now deliver messages to all Chinese networks with very high delivery-ratio.

 

The features and restrictions for sending SMS to China are as follows: 

Sender ID:

All forms of Sender ID will be replaced by a numeric number for all networks. 

Content: 

Content at risk of being blocked/filtered

Mobile operators in China are actively blocking and filtering numerous keywords.

Adult, religious and especially political contents are strictly prohibited and will be blocked. Here are some known filtered keywords/categories:

  • Keywords:  Falung Gong, SB, Tienanmen Square
  • Categories of: Gambling, Adult content, Property, Education, Immigration, Financing, Loans, Beauty care, Cosmetic surgery, Healthcare, Alcohol, Politics, Fraud

 Content allowed

  • Transactional content:

No restriction applies to notification or OTP (one-time password) traffic. Message content may be modified with signatures ( e.g 【Signature】) appended at the front or end of the message to ensure delivery.

 

Nexmo also has very high quality routes for transactional content, which requires pre-registration and is reserved for customers sending more than 100K messages per month. With our high quality routes, customer can choose their own signatures and message contents will not be modified.

 

  • Promotional/marketing content

Promotional/marketing related messages are also under heavy screening by local operators. Any promotional/marketing related messages towards China will have to go through the pre-registration procedures and is subjected to approval.

 

If you need high quality connection for your transactional traffic or you plan to send promotional/ marketing traffic, please contact your Account Manager or support@nexmo.com for assistance. 

Concatenated messages:

Concatenated messages are supported for all networks. 

Unicode:

Unicode is supported for all networks. 

Delivery Receipts:

Handset delivery receipts are supported for all networks.

Other features/restrictions of note: 

  • Maximum number of messages allowed to destination number:

To avoid spamming the end users, maximum of roughly 3 messages with the same content or 15 messages with different contents can be sent to one single number within 24 hours. Messages exceeding this limit may be blocked by local mobile operators

 

中国是世界上规模最大和增长速度最快的通信市场是之一。但是,因为网络运营商的高度过滤和拦截,它同时也是短信发送特别困难的国家之一。如果使用廉价道通,大多数的短信都会被过滤器拦截。所以Nexmo使用的是中国网络运营商的直连通道,以提供最好的短信送达率.

以下是中国短信的相关支持规则及限制:

发送方号码:

  • 发送方号码将会改成数字号码发出 

短信内容:

 

会被拦截的内容

有关成人,宗教,特别是政治的内容将会被拦截。中国政府列入黑名单的关键字/类别如下:
 - 关键字:法轮功,SB,天安门广场;
 - 相关类别内容:赌博,成人,房产,教育,移民,金融服务,贷款,美容护理,整容手术,医疗保健,酒精. 

 

可以发送的短信内容

  • 验证或通知类型短信

- 没有限制。为保证传送质量,短信内容开头或结尾可能加上签名 (例如:【Signature】短信内容)。

- 如您发送的是验证或通知类型的短信,可以考虑注册使用我们高质量的短信通道,使用注册通道的客户可以选择自己的签名。请注意这类通道只开放给每月发送超过10万条短信的客户。

 

  • 营销/市场推广类短信

- 中国网络运营商对营销/市场推广相关短信也有高度筛查机制,任何营销/市场推广相关内容都必须经过预先备案并获得批准。

 

如您有需要使用高质量的注册通道(验证或通知类型),或有需要发营销/市场推广相关内容短信,请联系您的客户经理或support@nexmo.com

长短信是否支持:

支持 

Unicode是否支持:

支持 

短信回执是否支持:

支持手机短信的送达回执 

其他:

  • 短信条数限制:

为防止骚扰信息,24小时内最多约可以发3条内容相同的短信或15条不同内容的短信往同一个号码。超过以上限制的短信有可能会被网络运营商拦截。

 

 

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