WebInk Digital

This plugin is an add-on for the <a href="https://wordpress.org/plugins/booking/" rel="ugc">Booking Calendar</a> plugin and requires it to function (version 10.10.2 or newer).
It enhances booking security by introducing One-Time Password (OTP) verification via SMS or email. When a user attempts to confirm a booking, they are prompted to verify the action with an OTP, helping to ensure the authenticity of the request.
SMS verification is provided via the <a href="https://sms.to" rel="nofollow ugc">SMS.to</a> service. You must have an active SMS.to account and API key configured in the plugin settings to enable SMS delivery.
<h3>External Services</h3>
This plugin connects to an external service to send One-Time Passwords (OTP) via SMS as part of the booking verification process.
Service Used: <a href="https://sms.to" rel="nofollow ugc">SMS.to</a> 
What it’s used for: Sending OTPs (One-Time Passwords) via SMS during booking confirmations. 
What data is sent and when: 
– The recipient’s phone number 
– The OTP message content 
These are sent to the SMS.to API at the time a booking requires verification via SMS.
Terms of Service: https://sms.to/terms/ 
Privacy Policy: https://sms.to/privacy-policy/

OTP Add-on for Booking Calendar

Adds One-Time Password (OTP) verification via SMS or email to the Booking Calendar plugin for secure booking confirmations.

Mostafa Soufi

Navid Kashani

VeronaLabs

alifallahrn

Reza

<a href="https://wp-sms-pro.com/?utm_source=wporg&utm_medium=link&utm_campaign=website" rel="nofollow ugc">WSMS</a> lets you send SMS/MMS notifications, one-time passwords (OTP), and two-factor authentication (2FA) messages straight from WordPress. It supports a wide range of SMS gateways and integrates with popular e-commerce and form builder plugins.
Use WSMS to: 
– Keep customers updated on WooCommerce orders 
– Collect subscribers with SMS newsletter forms 
– Secure logins with OTP & 2FA 
– Alert admins about new users, logins, or updates 
– Run marketing campaigns with scheduled or bulk SMS
👉 <a href="https://demo.wp-sms-pro.com/wp-login.php" rel="nofollow ugc">Check out the demo</a> | <a href="#screenshots" rel="nofollow ugc">View screenshots</a> | <a href="https://wp-sms-pro.com/gateways?utm_source=wporg&utm_medium=link&utm_campaign=gateways" rel="nofollow ugc">See supported gateways</a> | <a href="https://wp-sms-pro.com/integrations?utm_source=wporg&utm_medium=link&utm_campaign=integrations" rel="nofollow ugc">Explore integrations</a>
<h3>✨ Key Features</h3>
<ul>
<li>Send SMS/MMS: Send messages through your choice of supported SMS gateways.</li>
<li>E-Commerce & Form Integration: Seamlessly integrates with popular e-commerce platforms and form builders.</li>
<li>OTP & 2FA: Add extra login security with one-time passwords and two-factor authentication.</li>
<li>Mobile Login: Let users log in with their mobile number.</li>
<li>Admin Alerts: Get notified when new users register, posts are published, or WordPress updates are available.</li>
<li>Newsletters & Widgets: Build SMS newsletter forms with shortcodes, widgets, or Gutenberg blocks.</li>
<li>Two-Way SMS (All-in-One): Receive and reply to SMS messages inside WordPress.</li>
<li>Bulk & Scheduled SMS: Send to multiple recipients at once, immediately or on schedule.</li>
<li>Third-Party Integration: Connect with external services and automation platforms.</li>
<li>Messaging Button: Let visitors reach you instantly via messaging channels.</li>
<li>GDPR Compliant: Built with privacy and compliance in mind.</li>
</ul>
<h3>💎 Upgrade to WSMS All-in-One</h3>
Unlock additional features with All-in-One — the plan that gives you access to all premium add-ons in one package.
With All-in-One you get: 
– Secure login & registration with OTP & 2FA 
– Scheduled & recurring SMS/MMS 
– Two-way SMS inbox 
– Enhanced e-commerce features (login, checkout verification, order updates) 
– Membership platform integrations 
– Advanced form builder SMS capabilities 
– Marketing automation integrations 
– Booking system compatibility 
– URL shortening service integration 
– All future add-ons included
👉 <a href="https://wp-sms-pro.com/pricing/?utm_source=wporg&utm_medium=link&utm_campaign=pricing" rel="nofollow ugc">See All-in-One details & compare features</a>
<h3>🐞 Report Bugs & Security</h3>
<ul>
<li>Found a bug? <a href="https://github.com/wp-sms/wp-sms/issues/new" rel="nofollow ugc">Open an issue on GitHub</a>.</li>
<li>Security concerns? Report them via the <a href="https://patchstack.com/database/wordpress/plugin/wp-sms/vdp" rel="nofollow ugc">Patchstack VDP program</a>.</li>
</ul>
<h3>📝 Trademark Notice</h3>
WooCommerce, GravityForms, Elementor, Contact Form 7, Twilio, WhatsApp, Clickatell, BulkSMS, Plivo, Zapier, Bitly, and other product names mentioned are trademarks of their respective owners. WSMS is not affiliated with, endorsed by, or sponsored by these companies.
<h3>Source Code and Build Instructions</h3>
Note: The plugin works out of the box – no build steps required for regular users. This section is for 
developers who want to modify or contribute to the source code.
<h4>Source Locations</h4>
All source code for minified JavaScript and CSS is included in the plugin:
<ul>
<li>JavaScript source: <code>assets/src/scripts/</code> → compiled to <code>assets/js/</code></li>
<li>Gutenberg blocks: <code>assets/src/blocks/</code> → compiled to <code>assets/blocks/</code></li>
<li>SCSS source: <code>assets/src/scss/</code> → compiled to <code>assets/css/</code></li>
</ul>
<h4>Third-Party Libraries</h4>
<a href="https://github.com/chartjs/Chart.js" rel="nofollow ugc">Chart.js</a>, <a href="https://github.com/DataTables/DataTables" rel="nofollow ugc">DataTables</a>, <a href="https://github.com/flatpickr/flatpickr" rel="nofollow ugc">flatpickr</a>, <a href="https://github.com/jackocnr/intl-tel-input" rel="nofollow ugc">intlTelInput</a>, <a href="https://github.com/DubFriend/jquery.repeater" rel="nofollow ugc">jquery.repeater</a>, <a href="https://github.com/qwertypants/jQuery-Word-and-Character-Counter-Plugin" rel="nofollow ugc">jQuery Word and Character Counter</a>, <a href="https://github.com/select2/select2" rel="nofollow ugc">Select2</a>, <a href="https://github.com/calebjacob/tooltipster" rel="nofollow ugc">Tooltipster</a>
<h4>Repository</h4>
Full source code: <a href="https://github.com/wp-sms/wp-sms" rel="nofollow ugc">github.com/wp-sms/wp-sms</a>

WSMS (formerly WP SMS) – SMS & MMS Notifications with OTP and 2FA for WooCommerce






many thanks to the development and support team



they worked hard and now i recommend everyone to buy this plugin



but if your are looking for more features like 2way sms and custom sms it is not the right choice for you










great plugin

Send SMS/MMS notifications, OTP & 2FA messages, and WooCommerce updates with support for multiple gateways and plugin integrations.

OTP Add-on for Booking Calendar vs WSMS (formerly WP SMS) – SMS & MMS Notifications with OTP and 2FA for WooCommerce