Platform
SMS Web Platform
Access your online account from any web browser.

Text Messenger
Send your SMS messages with the BulkSMS Text Messenger.

RCS Messaging
Learn about our RCS for business functionality.

Compare our Features
Find out more about the SMS solutions we offer here.
SMS API
Connect your application or website with our SMS API.

SMS Integrations
Two-way SMS functionality that integrates with multiple platforms.

Incoming Long Numbers
Receive incoming messages directly from your customers.

SMS Shortcodes
Get your own 5 digit shortcode.
Resources
Developer Docs
Take a read through our APIs and see what suits you.

SMS Resources
Featuring industry news, use cases and customer success stories.

Support
Useful for those with questions. FAQ's and video tutorials.
About BulkSMS.com

Celerity.chat

Kero.chat

Sender IDs

Legal

Regional Regulations

Frequently Asked Questions

Careers
Pricing
Contact

Sign up Login

Platform

SMS Web Platform
Access your online account from any web browser.
Text Messenger
Send your SMS messages with the BulkSMS Text Messenger.
RCS Messaging
Learn about our RCS for business functionality.
Compare our Features
Find out more about the SMS solutions we offer here.

SMS API
Connect your application or website with our SMS API.
SMS Integrations
Two-way SMS functionality that integrates with multiple platforms.
Incoming Long Numbers
Receive incoming messages directly from your customers.
SMS Shortcodes
Get your own 5 digit shortcode.

Pricing

Resources

Developer Docs
Take a read through our APIs and see what suits you.
SMS Resources
Featuring industry news, use cases and customer success stories.
Support
Useful for those with questions. FAQ's and video tutorials.

About BulkSMS.com
Celerity.chat
Kero.chat
Sender IDs
Legal
Regional Regulations
Frequently Asked Questions
Careers

Sign up Login Contact

Add a signature to your SMS messages

This video shows you how to add a signature at the end of each of your SMS messages sent using the BulkSMS Text Messenger desktop software.

Back to Video Tutorials

This video requires marketing cookies to play. Please update your cookie preferences to watch it.

LET'S CONNECT

Messaging infrastructure for modern enterprises

Sign up today! View our Pricing Speak to the Team

Platform

Our SMS Platform
SMS Integrations
SMS API
Incoming Long Numbers
SMS Shortcodes
RCS Messaging
Pricing

Resources

Help & FAQs
SMS Resources
Customer Stories
Industry Trends
SMS Regulations
SMS Coverage

Company

About BulkSMS.com
About Celerity.chat
About Kero.chat
Support
Careers

We love to talk to
our customers

Let's chat!

BulkSMS is a leading SMS messaging service provider offering two-way SMS communication services from your internet enabled computer. The BulkSMS gateway reaches across borders and connects to over 800 mobile network operators world-wide. BulkSMS.com is a division of Celerity Systems (Pty) Ltd.

WASPA

Trust In Enterprise Messaging

Mobile Ecosystem Forum

© 2000 - 2026 Celerity Systems (Pty) Ltd. All Rights Reserved.

Terms of Service
Privacy Policy
Cookie Policy
Corporate Policy
PAIA Manual
Site Map