SMS Gateway & APIs

Integrate SMS Gateway into your business system

Reach customers anywhere via mobile. Our developer-friendly SMS Gateway integrates seamlessly through SMS APIs, enabling your software applications and systems to send and receive high-quality SMS messages globally.

SMS-services for businesses

Reliable icon
Reliable

Recommended by developers. With 99.6% uptime, high availability, and monitoring, our Gateway can handle all your SMS sending requirements.
 

Scalable icon
Scalable

Scale as you grow – the SMS Gateway can handle large volumes of messages, such as mass messaging or bulk SMS.

Global reach icon
Global reach

Reach up to 6 billion mobile devices across 1,451 networks used by 955 operators in 243 countries

How do SMS Gateway and SMS API work?

SMS Gateway

What is an SMS Gateway?                                                                LEKAB’s SMS Gateway translates messages from your systems into a format that mobile networks can process.

How does an SMS Gateway work?                                               LEKAB’s Gateway connects via the SMPP protocol to an SMSC (Short Message Service Centre) at the operators and delivers the SMS to the recipients.

When is an SMS Gateway used?
  • Mass messaging (A2P)
  • Two-way flows (P2A)

SMS API

What is an SMS API?                                                                           LEKAB’s SMS API (REST/SOAP) is the key that allows your application to open the door to connect with our Gateway.

How does an SMS API work?
APIs can call LEKAB’s Gateway to, for example, send or receive SMS, import address books, start workflows, and retrieve status reports.
 
When do you use an SMS API?
To integrate SMS into your business systems such as ERP/CRM/Martech
  • For automated notifications and trigger-based flows

 

SMS Gateway features

Outgoing SMS (1-way)

One-way messaging with an SMS Gateway allows you to send SMS messages to recipients without expecting or enabling a reply. This type of messaging is ideal for broadcasting important information, alerts, notifications, and promotional messages to a large audience efficiently.

Keywords

Keywords enable users to interact with your SMS system by sending specific words or phrases to a designated number like START/STOP. This triggers automated responses, workflows or actions, making it easy to manage user inquiries, subscriptions, and other interactions efficiently.

Auto reply

Respond automatically to incoming messages based on predefined rules, such as a keyword response like YES/NO. This feature ensures timely and consistent communication, enhancing customer experience by providing instant feedback and information without manual intervention.

Personalisation variables

Personalisation variables let you customise SMS messages with specific details such as the recipient's [Name], [Account number], or appointment [Time]. This adds a personal touch to your communications, increasing engagement and relevance.

Flash SMS

Flash SMS delivers messages directly to the recipient's screen, bypassing the inbox and ensuring immediate attention. This is ideal for urgent notifications and alerts that need to be seen instantly.

Quotas

Quotas allow you to set limits on the number of messages sent within a specified period. This helps in managing costs, preventing overuse and fraud, and ensuring compliance with messaging policies.

Incoming SMS (2-way)

Two-way messaging with an SMS Gateway enables both sending and receiving SMS messages to engage in real-time conversations with your audience. Recipients can respond to messages, participate in surveys, provide feedback, and interact with customer support. It's widely used for customer service, order confirmations, appointment scheduling, job requests and opt-in to marketing campaigns. A key feature of 2-way messaging is the use of keywords.

Analytics

See detailed insights into your messaging campaigns and send-outs, including delivery rates, open rates, and response rates. This data helps you measure effectiveness, optimise strategies, and improve future messages.

Delivery receipts

Delivery receipt confirms whether your SMS messages have been successfully delivered to the recipient’s device. This feature helps in tracking message delivery status and identifying any delivery issues.

Time rules

Time rules allow you to schedule messages to be sent at specific times or within certain time frames. This ensures that your messages reach recipients at the most appropriate and effective times.

Stop list

The stop list feature manages opt-out requests by maintaining a list of numbers that should not receive further messages. This helps in compliance with regulations and respects user preferences.

Concatenation

Concatenation enables the sending of long messages by breaking them into multiple segments and reassembling them on the recipient’s device. This ensures that your full message is delivered even if it exceeds the standard 160 SMS character limit.

URL links

URL links allow you to include clickable web links in your SMS messages. This drives traffic to your website, landing pages, or other online resources, enhancing engagement and providing additional information.

Security

Protects your data from unauthorised access and breaches. This includes authentication to web portal, and other measures to ensure the confidentiality and integrity of your communications.

Number lookup

Number lookup validates and retrieves information about phone numbers, such as carrier details and whether the number is active. This helps in maintaining accurate contact lists and improving message delivery rates.

Webhook

Webhook allows your SMS Gateway to send real-time data to other systems when certain events occur. This enables seamless integration with your existing workflows and systems, facilitating automated processes and immediate responses.

Templates

Allow you to create and store preformatted messages for recurring use. This feature significantly enhances efficiency and consistency in your communications by enabling quick dispatch of standard messages without the need to compose each one from scratch.

Integrate SMS functionality into your systems and applications

SMS Gateway is a scalable cloud service that can be integrated into your company's business systems or software applications. The service is easy to integrate through our SMS API:s and can be used with applications such as:

  • CRM
  • Marketing- & campaign systems
  • HR systems
  • ERP systems
  • Booking systems
  • Communication servers
  • And more..
SMS API integrations

Connect in your audience's preferred channel

  • SMS icon

    SMS

    Reach anyone, anytime – SMS is the most effective channel to get your message seen.

    Explore channel
  • RCS icon

    RCS

    The next generation of SMS with interactive content, strong security, branding, and a richer user experience.

    Explore channel
  • Whatsapp For Business icon

    WhatsApp

    Build stronger customer relationships in a channel users already trust – with verified business messaging on WhatsApp.

    Explore channel
  • Facebook Messenger icon

    Facebook Messenger

    Chat in real time and automate customer conversations – Messenger blends simplicity with transactional power.

    Explore channel
  • Voice icon

    Voice

    Send and receive voice messages – Text-to-Speech and Speech-to-Text streamline your communication.

    Contact us
  • Cloudfax icon

    CloudFax

    Digital faxing for today’s needs – send documents securely and easily straight from the cloud.

    Contact us
  • All channels icon

    More channels

    Explore more channels and find the one that best fits your audience and business goals.

    Explore all channels

Code of conduct

LEKAB is a Board Member of Morgan, the industry association for mobile services in Sweden. Morgan, together with Swedish telecom operators Telia, Tele2, Hi3G, and Telenor, has established the Code of Conduct for A2P Messaging. This detailed framework aims to regulate the distribution of bulk SMS messages, promote a good and sustainable business messaging market and safeguard the integrity of A2P messaging.

Morgan square

Connect our APIs to your software

Integrate our robust and flexible SMS APIs and start sending messages. See the full API documentation and code examples. Our support team is at your disposal at any time.

Our flexible SMS APIs include REST API with JSON, Web Services (SOAP / XML), Batch API, SMPP, SMTP, and HTTP GET. We also provide Rich channel APIs like RCS and WhatsApp.

SMS API code snippet img

Choose the right sender ID for your SMS

To ensure your SMS messages are seen as trustworthy and relevant, you need a clear and recognizable sender ID. This can be:

  • a long number (standard phone number)
  • a short code
  • a name (so-called alphanumeric ID)

LEKAB helps you choose the right type based on whether you want to send information, receive replies, or reach a broad audience. We also ensure that your sender ID is registered and approved according to operator requirements.

For added protection, we recommend Sender ID Protection.

SMS Sender ID examples

Solutions for your industry

We work with customers in various industries, addressing complex
challenges
and delivering effective automation solutions.

  • Bank & Insurance use case

    Bank & insurance

    Send appointment bookings with advisors, reminders for missed signatures and payments, advice and instructions for filling a claim or customer onboarding – all via SMS. Inform your customers at the right time in the customer journey.

  • Retail & ecommerce dark

    Retail & ecommerce

    Reach the right customers at the right time with targeted messages that directly address customer needs and preferences. From order updates and back-in-stock notices or loyalty notifications to SMS Marketing and offers. 

  • Transport & logistics

    Transport & logistics

    Keep customers satisfied and loyal with prompt updates. Allow customers to track orders in real-time for seamless delivery. Or update the customer about traffic disruptions, a canceled departure, or a changed gate.

  • Healthcare & public sector use case layer

    Healthcare & public sector

    Streamline operations and communication with SMS. Ensure patient satisfaction with real-time updates and manage last-minute staffing by coordinating shifts with text messages. We also have SMS solutions for municipalities and regions to update and inform their residents, sending notifications, alerts, or reminders, etc.

  • IT & telecom use case layer

    IT & telecom

    Integrate SMS functionality into your platform. From automatic customer and service notifications, one-time passwords, to system and operational messages. Our flexible and scalable SMS solutions help businesses streamline communication both internally and externally, enhancing customer satisfaction.

Talk to one of our business
messaging experts

Fill in the form, and we will get in touch as soon as possible or call us: +46 8-635 26 00.