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Wholesale SMS

Wholesale SMS is a service that enables the sending and receiving of text messages in high volumes using a provider's SMS gateway infrastructure. The connectivity options to the SMS provider include protocols like SMPP, HTTP API, SMTP, and MM7.

SMPP Protocol Features

  • SMPP, a client/server protocol, is used to submit and deliver SMS messages.

  • It supports advanced messaging features like flashes, binary content, and alerts, along with delivery receipts and error codes.

Typical SMPP Session Workflow

  1. ESME (External Short Messaging Entity) binds as a transmitter and/or receiver.

  2. ESME submits a message using the SUBMIT_SM operation.

  3. SMSC (Short Message Service Center) processes the message and returns a submit_sm_resp.

  4. If a delivery receipt is requested, SMSC sends a DELIVER_SM.

  5. ESME sends a deliver_sm_resp to acknowledge receipt.

  6. ESME unbinds to close the connection.

SMPP v3.4 Response Codes

  • 0x00000000 (0) - No error: Message accepted.

  • 0x00000022 (34) - Congestion: Indicates network congestion.

  • 0x00000023 (35) - SMPP system error: Indicates an error on the SMPP system side.

HTTP API for SMS

The HTTP API for SMS provides a simple integration using REST principles, facilitating the sending and receiving of SMS messages through HTTP requests.

SMS Use Cases

  • Promotional marketing, event notifications, OTP passcodes, chatbots, CRM integration, and emergency alerts are some of the common use cases for SMS.

Wholesale SMS provides a ubiquitous reach, low cost, supports automation and personalization, although it has some limitations like adherence to spam guidelines, character limits per message, and throughput caps to prevent network congestion.

The Proliferation of Wholesale SMS

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The Gateway to Text Messaging: Wholesale SMS
 

Wholesale SMS is the gateway for businesses to send and receive text messages in high volumes. Through a provider's SMS gateway infrastructure, businesses can engage with their customers in a personal yet automated manner.

 

The Language of SMS: SMPP Protocol
 

SMPP Protocol is the language that facilitates the submission and delivery of SMS messages. It's a robust protocol that supports a variety of messaging features and provides a framework for communication between SMSC and ESME.


Simplifying Integration: HTTP API for SMS
 

The HTTP API for SMS simplifies the integration of SMS services into existing systems. By adhering to REST principles, it provides a straightforward method for sending and receiving SMS messages through HTTP requests.
 

The Array of Applications: SMS Use Cases
 

SMS has a broad array of applications ranging from promotional marketing to emergency alerts. Its versatility makes it a valuable tool for businesses to engage with their audience in a timely and direct manner.
 

Tackling Challenges: Limitations and Solutions
 

While wholesale SMS offers numerous benefits, it also presents some challenges like adherence to spam guidelines and character limits. Understanding these limitations and finding innovative solutions is crucial for maximizing the benefits of wholesale SMS.
 

Advancing Communication: Future of Wholesale SMS
 

The future of wholesale SMS is promising with advancements in technology. As the world moves towards more integrated and automated communication solutions, wholesale SMS will continue to play a pivotal role in this evolution.

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