📩 Mass sms-mailing for advertising: a complete guide to setup and optimization

Publication date: 02.12.2025

Today, when the information space is oversaturated, a direct, concise, and guaranteed communication channel is worth its weight in gold. Mass SMS-mailing for advertising (SMS-marketing) is such a tool. It is a powerful, time-tested way to deliver important messages—about promotions, new products, special offers, or events—directly into your customer’s pocket.

Unlike email marketing, where a letter can end up in spam or get lost among hundreds of others, SMS messages boast:

  • Instant Delivery: 98% of messages are delivered within 5 seconds.
  • Impressive Open Rate: opened within the first 3 minutes.

This makes them an ideal tool for activating sales and getting an immediate response.

Let’s take a closer look at how this mechanism works, what you need to know for its setup, and what unique capabilities our SMS mailing service offers for your brand in Ukraine and globally.

1. Global reach and branding: focus on trust

Our service specializes in sending SMS messages worldwide. The key advantage is that your message is delivered in the name of your brand—this increases recognition, trust, and the effectiveness of your advertising campaign. We offer international possibilities for communication where it is convenient for the client.

However, for correct delivery to other countries, you need to contact our managers, as registration and delivery requirements may vary.

1.1. The foundation of every mailing: alpha-name (sender id)

Alpha-Name (AI) is the value from which the client receives the SMS. This can be the name of your company or product, for example, “Unitalk” or “shop.ua”. This is critically important for recognition, as the message comes not from an unknown number, but from your brand’s name.

1.2. Alpha-name requirements and restrictions

Parameter Requirement/Restriction
Length Up to 11 Latin characters.
Allowed characters Only Latin letters and digits (GSM 7).
Forbidden to use (Content) Names of mobile operators, obscene language, generic names (“Shop”), names, and incomprehensible words.
Legal restrictions Brands/trademarks for which there is no written confirmation of the right to use them.

1.3. Unique offer: flexibility for Ukraine

In particular, we draw your attention to the flexible options for the Ukrainian market. In cooperation with our manager, you have the opportunity to send messages in Ukraine in two main ways:

  • From a text Alpha-Name (AI): The standard branded method.
  • From a phone number: This option may be important for local campaigns or in cases where you want to ensure the possibility of two-way communication (receiving replies).

2. Creating an advertising mailing: economy and optimization

Creating a mailing involves sequentially filling in three sections: Content, Recipients, and Send Time.

2.1. Step 1: content (text, ai, and limits)

Important about Alpha-Name: Once the required AI is selected in the “Content” section, it becomes the primary one for sending all SMS (mass mailing, test messages, single sends) until you change it in the settings.

Character limits and tariffs:

Mass SMS-mailings are always charged not by the number of messages sent, but by the number of parts (segments) into which the text is divided. This is a critical point for the efficiency of your expenses.

Number of SMS Parts Latin Characters (GSM-7) Cyrillic/Ukrainian Characters (Unicode)
1 SMS 160 70
2 SMS 306 134
3 SMS 459 201
4 SMS 612 268

Expert Advice:

We recommend sending SMS with no more than 4 parts, as the blocking of even one part can lead to the non-delivery of the entire message.

Tools for content optimization:

  • Transliteration: The “Change to Latin” function translates Cyrillic text into Latin characters. This helps save money, as Latin allows up to 160 characters per segment, while Cyrillic allows only 70.
  • Emojis: When adding emojis, please note: they are counted as Unicode. Even if the text is in Latin characters, adding an emoji switches the system to Unicode, reducing the character limit to 70.
  • Using templates: If you often send the same type of messages (e.g., transactional messages or promotions), use Templates. This significantly saves time and ensures no errors.

2.2. Step 2: recipients (your target customers)

The Number Database is a group of subscriber numbers that you upload (.xls or .xlsx). The file can contain no more than 10,000 rows. Be sure to use the international number format and text data type in the cells.

🔒 Confidentiality Preservation: Our service provides a high level of protection for client databases through full data encryption and reliable anti-parsing protection.

2.3. Step 3: timeline and scheduling

The success of advertising depends on timeliness. The “Send Time” section offers flexible tools for management.

  • Scheduling: You can send immediately or schedule the mailing for 1-30 days in advance.
  • Test SMS: You can send a test message to see how it will look. Important: Test SMS is a standard service that is subject to charges.

3. Launch, monitoring, and automation

3.1. Final launch of the mailing

The “Send Mailing” button becomes active only when all 3 sections are filled in. Before the final confirmation, the SMS MAILING LAUNCH menu appears, where you can re-check the cost, settings, and preview.

3.2. Management and statuses

After launch, you can:

  • Observe the mailing status.
  • View the sent content.
  • Track the number of delivered messages.
  • See the cost of this mailing.

3.3. Automation and integration (api)

If you need to send SMS automatically from your website, CRM, or billing, our service has an open API (HTTP API, SMPP). This simplified solution for integration allows programmers to set up automatic sending without needing to log in to the personal account.

💡 Conclusion: why mass sms-mailing works?

Mass SMS-mailing is a direct action tool that provides high conversion thanks to guaranteed delivery (98%) and a personalized approach.

Our SMS mailing service offers:

  • Reliability through hybrid routes to minimize costs.
  • Flexibility in choosing communication channels (SMS or calls/chats/emails) — communicate where it is convenient for the CLIENT.
  • Savings on characters thanks to the transliteration function.

Use the Mailing Scheduler, pay attention to character limits, and be sure to use the test SMS. This will help your brand effectively communicate with its audience in Ukraine and worldwide.

UniTalk – A single solution for managing customer communication
Request a call back or give us a call
+38 (093) 170 08 00
Get a consultation
More articles
Want to become a UniTalk client?
FREE CONSULTATION
Request a call back or give us a call +38 (093) 170 08 00 .