Send Bulk Voice Call Messages Directly from Google Spreadsheet with SMSGatewayCenter API Integration
Easily send single or bulk voice call messages with pre-recorded audio clips directly from Google Spreadsheets using SMS Gateway Center's powerful integration. Leveraging Google Apps Script, this no-code solution lets you automate voice campaigns triggered by your spreadsheet data in minutes. Whether you want to send alerts, reminders, or promotional voice calls, our platform ensures reliable delivery with detailed success and failure reports sent right to your email. Simplify your outreach and improve customer engagement with seamless voice call automation from Google Sheets.


⭐ What is Google Spreadsheet Voice Call Integration?
Google Spreadsheet Voice Call Integration is a no-code solution that enables users to send automated voice call alerts directly from a Google Sheet. Powered by SMSGatewayCenter's Voice API, this integration helps businesses, institutions, and individuals deliver voice notifications based on data entries such as phone numbers and message content.
Whether you're running appointment reminders, overdue payment alerts, emergency broadcasts, or marketing campaigns, this setup lets you launch calls with ease—right from a familiar spreadsheet interface. No programming required, and 100% TRAI DLT compliant for Indian businesses.
With real-time reporting, high success rates, and customizable message templates, Google Spreadsheet + Voice Call integration is a powerful tool for streamlining communication while saving time and operational effort.
Send Single/Bulk Voice Call Messages from Google Spreadsheet
In this tutorial, we'll demonstrate how to send voice call messages with a pre-recorded audio clip to numbers listed in a Google Spreadsheet using Apps Script. Apps Script is a cloud-based JavaScript platform that lets you integrate with and automate tasks across Google products. Even if you've never written a line of code before, the process takes less than ten minutes to finish.
Using our code, you can send single/bulk voice call messages. After once, you run your campaign, an Email will be sent to your logged-in Email about success/failed messages summary.
What does this App do?
This app helps you to send bulk voice call messages to your contacts from Google Sheets.
- Send Bulk Voice Call from Google Sheets.
- Send Single voice call from Google Sheets.
- Send Selected Rows voice call from Google Sheets.
Before you Begin
- An SMS Gateway Center's SMS account with credits in your account balance with a paid subscription.
- A completely functional Google account having access with Google Spreadsheets.
- To send promotional or transactional voice calls, you require the following details.
- Library ID – You must upload audio clips in our media library. Once upload is successful, your audio clip will be assigned with libraryId.
Keep your API auth credentials handy as we need to paste in our JavaScript code.
Send Bulk Voice Calls from Google Spreadsheet Tutorial
Getting ready with Library ID
Login to your account.
Go to sidebar, click on Bulk Voice and again click on Manage Voice Libraries

On that page, go top right corner and click on Add.

Upload your audio clip on this page.
- Library Name: Write a title to identify your library name.
- Audio File: Click on browse and select your audio file to upload.
- Save: Click on to save changes.

Once the upload is done, you are redirected to Manage page. Library ID will be listed in that page. You need to grab libraryId from this section for all your audio media.

Ready your Google Spreadsheet
Go to your Google account, click on Sheets.

A new tab will be opened where you can start a new spreadsheet, Click on Blank from shown template gallery as shown below.

A new blank spreadsheet will open. Rename the Sheet from Untitled spreadsheet to Voice Campaign. Now add headers in the sheet. A column with Mobile value. Ensure phone/mobile columns in A column and clean up your mobile phone numbers.

Once you are done with customer mobile data in sheets, now head on to add our ready script. You can get our complete downloadable code, once you are recharged with your account from our team.
Go to Toolbar, Click on Extensions, then Apps Script.

A new Apps Script tab will open. Rename Untitled project to Send Voice Code. By default, code.js editor will be shown.
Remove all codes from the edit window. Copy and paste the given code from our team on this window and edit the following constants. Update sgc_username, sgc_password values. Once editing is done, click on save button. Then go back to your sheet.

Refresh the sheet page. Wait for 5 to 10 seconds. New Menu will be added as Send Voice. Click on Send Voice, new sub-menu will open as Send Voice, then click on Send Voice.

Google requires permission, so it pops up a confirm window to authorize your account with the added script. Click on Continue.

By continuing, it will take you to select your Google account, select the account which you have used for your sheet.

Since our script is not verified from Google, it will give you a warning in the next window, click on Advanced.

Advanced option will be shown as shown below. Click on Go to Send Voice Code (unsafe).

In the next window, it will show the list of permission which your script requires, scroll down below and click on Allow. Do not worry, you are giving permission to your own account and no one else can access your app code or sheet data.

A new sidebar will open. Enter your libraryId in Library ID text box from SMS Gateway Center's account's Manage Voice Libraries.
By default, Send Summary EMail is checked. If its checked, then you will receive Sent Voice Summary to your Gmail account.
You can send selected or to all numbers from your Google Sheet. Click on Send All to send all phone numbers available in the sheet, or select some specific cells and Click on Send Selected.
You are done, shortly you will be receiving Sent Voice summary to your Email address if option is checked. And also login to SMS Gateway Center panel and check Delivery Reports.
You can also contact us if you are facing issues, our team will help you to install and run your campaigns smoothly.
This concludes with your integration. Learn more from our Voice API documentation.

👍Setup Complete!
If you are having difficulty, write to us at contact @ smsgatewaycenter.com for assistance.
Are you ready to use this script to send out Voice Calls from Google Sheets?
Why Choose SMS Gateway Center for Google Spreadsheet Voice Integration?
Google Spreadsheet is a widely used tool for data management, campaign planning, and automation. When integrated with SMSGatewayCenter's Voice API, it transforms into a powerful communication platform for sending real-time voice call alerts—directly from your spreadsheet interface.
Whether you're notifying users about appointment reminders, payment dues, emergency alerts, or marketing campaigns, our Voice Call API makes it seamless and scalable. The entire process requires no coding and runs entirely from your Google Sheet using our simple add-on or Apps Script-based integration.
This setup is ideal for businesses, educational institutions, healthcare providers, and NGOs looking for fast, compliant, and personalized voice communication. Enjoy real-time reporting, secure delivery, and 24/7 technical support—powered by SMS Gateway Center's reliable infrastructure.


Best Practices for Google Spreadsheet Voice Call Integration
- Run Test Campaigns: Always test with a few rows before launching full-scale voice calls to validate audio quality, timing, and delivery.
- Use Personalized Audio: Upload custom audio files or use Text-to-Speech in multiple languages to tailor messages for different audiences.
- Schedule Wisely: Avoid sending calls during non-business hours or holidays to maintain professionalism and reduce call drops.
- Track Call Logs: Use SMSGatewayCenter's voice call reports to review delivery status, call duration, and user responses.
Integrating Google Spreadsheet with SMSGatewayCenter's Voice API empowers you to deliver urgent, automated voice notifications with precision and ease—boosting engagement and response rates.
Already managing contacts in a spreadsheet? Integrate SMSGatewayCenter to send automated voice calls directly from Google Sheets. Get real-time delivery, text-to-speech support, and simplified campaign management today!
Frequently Asked Questions about Google Spreadsheet Voice Call Integration
Google Spreadsheet Voice Call Integration allows you to send automated voice calls directly from your Google Sheets using SMSGatewayCenter's Voice API. It simplifies voice broadcasting without needing any coding or software.
You need a valid SMSGatewayCenter account with sufficient voice call credits, your message audio or text (for Text-to-Speech), and a Google Spreadsheet with a list of phone numbers.
Yes, SMSGatewayCenter Voice API supports both Text-to-Speech (TTS) in multiple languages and pre-recorded audio file playback for more personalized messages.
Absolutely. You can send bulk voice calls from your Google Spreadsheet using our API with support for thousands of recipients at once and real-time delivery tracking.
All call delivery reports and logs are available in your SMSGatewayCenter dashboard, including call duration, success status, and response tracking.
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