---
title: "Messaging Protocols (SMS/MMS)"
slug: "messaging-protocols-smsmms"
description: "Gladly’s SMS offering allows Customers to communicate with you via text. Learn about two options under SMS in Gladly Help Docs."
updated: 2025-02-05T20:54:06Z
published: 2025-02-05T20:54:06Z
canonical: "help.gladly.com/messaging-protocols-smsmms"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.gladly.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Messaging Protocols (SMS/MMS)

There are two methods of communication over SMS:

1. Short Message Service (**SMS**) (text only)
2. Multimedia Messaging Service (**MMS**) (pictures, audio, and video content)

|  | **SMS** | **MMS** |
| --- | --- | --- |
| Description | Short Message Service | Multimedia Messaging Service |
| Sent via | Carrier (mobile network) | Carrier (mobile network) |
| Character Limitations | 160-characters. Longer messages are broken up into multiple texts. Limited to text only. | Carrier dependent; ~300KB. Can send attachments and pictures. |
| Numbers Supported | You can use your 1-800 number or local number for SMS. | You can use your 1-800 number or local number for MMS. |