What are carrier messaging channels?

Carrier messaging channels refer to the traditional text messaging services provided by mobile network operators. These services enable communication via text and multimedia messages, leveraging the cellular network infrastructure rather than the internet. The main types of carrier messaging channels include:

1. SMS (Short Message Service) : SMS is the most widely used carrier messaging service, allowing users to send and receive text messages up to 160 characters in length. It is a ubiquitous form of communication that works on virtually all mobile devices, regardless of their internet connectivity or smartphone capabilities. SMS is often used for personal communication, as well as for business purposes such as notifications, alerts, verification codes, and marketing messages.
2. MMS (Multimedia Messaging Service) : MMS builds on SMS by allowing the exchange of multimedia content, such as images, audio clips, video files, and longer text messages. MMS enables richer communication experiences compared to plain text but is less commonly used due to its higher cost and the increasing popularity of internet-based messaging platforms.
3. RCS (Rich-communication services) : RCS, or Rich Communication Services, is a carrier-based messaging channel managed by mobile operators. It upgrades traditional SMS by offering features like group chats, read receipts, and multimedia sharing, comparable to OTT apps like WhatsApp. Unlike OTT services, RCS operates through the carrier's network and integrates with the native messaging app on compatible Android devices.

Carrier messaging channels are integral to basic mobile communication services and offer several benefits:

• Reliability and Reach : Since they do not require internet access, SMS and MMS can be used in areas with limited or no internet connectivity, making them highly reliable and accessible to a wide audience.
• Immediate Delivery : Messages sent via carrier channels are typically delivered almost instantaneously, ensuring timely communication.
• High Open Rates : SMS messages have very high open rates, often above 90%, as most people read text messages shortly after receiving them, making SMS an effective channel for urgent and important communications.
• Compatibility : These messaging services work across all mobile devices and network types, ensuring compatibility irrespective of device specifications or user demographics.

For businesses and organisations, carrier messaging channels are valuable tools for reaching customers with critical information, such as transactional notifications, security verifications, appointment reminders, and promotional offers. Despite the rise of internet-based messaging apps, carrier channels remain essential for their reliability and ability to reach virtually every mobile phone user.

learn more

To learn more about working with the carrier channels, please view:

• What are the benefits of SMS as a service channel?
• What features are supported on the SMS channel?
• What are the benefits of the RCS channel?