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Kloud 7 is a business communications service provider that offers tailored solutions for businesses to grow faster.

Twilio offers developers a powerful API for phone services to make and receive phone calls, and send and receive text messages. Their product allows programmers to more easily integrate various communication methods into their software and programs.

Nexmo connects your apps directly to carriers around the world. Integrate SMS and Voice messages using one simple API. Use Nexmo Verity to register users, verify transactions, and implement two factor authentication.

Postscript lets you easily create and manage SMS marketing campaigns with detailed analytics designed to increase sales and revenue, not just clicks.

Braze is a comprehensive customer engagement platform that powers relevant and memorable experiences between consumers and the brands they love.

Agora.io provides building blocks for you to add real-time voice and video communications through a simple and powerful SDK. You can integrate the Agora SDK to enable real-time communications in your own application quickly.

Plivo provides basic building block APIs in the form of Plivo XML and HTTP API, to create telephony apps, so developers can completely do away with learning the nitty-gritty of the telephony plumbing.

At MessageBird we believe that communicating with a business should feel as natural as communicating with a friend. That's why our SMS, Voice and Conversations APIs continue to revolutionize company-customer interactions.

It adds the clarity and emotion of face-to-face communication to your brand whether you're developing for the web, iOS, or Android. We make the integration of high-quality live video a breeze so that you can focus on building a great product.

It is a global leader in omnichannel engagement. We help our clients and partners overcome the complexity of consumer communications & grow their business.

A Communications Platform as a Service company offering a full suite of voice, messaging, and 9-1-1 APIs, all built atop the company's own all-IP voice network.

BulkSMS.com is a leading SMS messaging service provider offering two-way SMS communication services. The BulkSMS gateway reaches across borders and connects to over 800 mobile network operators world-wide.

It is a cloud telephony platform that powers communication for enterprises, startups and small and medium enterprises in India and Southeast Asia. They provide APIs that help companies devise their own communication flow.

Tropo is a powerful yet simple API that adds Voice and SMS support to the programming languages you already know.

It is a cloud communication platform offering powerful messaging solutions to empower business communications. It provides bulk SMS service provider offers transactional & promotional bulk SMS solutions to enterprises via powerful & robust bulk SMS gateway internationally.

It is a global leader in the contact center market, providing companies with reliable and scalable communications-centric solutions. It helps businesses manage calls, improve customer service and compete more effectively.

It gives powers to chat commerce by helping you reach and engage customers through SMS, WhatsApp and other social channels.

VoxImplant is a communications cloud platform built and designed for developers. Use the VoxImplant mobile SDK, telephony integration, or web sdk to build anything from softphones, click-to-call, automated surveys, cloud contact center or PBX, to cloud IVR and call tracking.

Reach your customers in a matter of minutes with our instant delivery. Find a Bulk SMS API for every application/technology.

Create a better customer experience with SMS, Chat Apps, Video Interaction & Voice. It’s integrated communications platform as a service (CPaaS) streamlines multiple communications channels into a single dashboard.

It is a business mobile messaging service provider that enables businesses of all sizes and industries to deliver and manage SMS text messages from PC, web, email or API.

It provides a secure, available, and sophisticated contact center software solution for up to 400 agents and interactive voice response (IVR) ports that is easy to deploy and manage. This omnichannel solution is ideal for formal and informal small to medium-size contact centers.

Pushnami enables you to capture your audience, intelligently market to them across web, mobile, and email, and grow your revenue. Streamline your messaging strategy with features like machine learning,automated drip campaigns, and customize

Send and receive SMS globally with the SMS gateway. Trust your business messaging with reliable, direct routes, and lightning fast message delivery.

It is an Open Source, low-latency and high-quality voice-chat program written on top of Qt and Opus. There are two modules in Mumble; the client (mumble) and the server (murmur). The client works on Windows, Linux, FreeBSD and macOS, while the server should work on anything Qt can be installed on.

Single platform for Calls & Messages. API Based with CRM Plugins. Connect Real, Virtual & Remote Agents with Phone Numbers in Every Country.

Quickly add Voice, Video, SMS to your web and mobile applications. It is a communication platform which provides APIs that help clients quickly add Voice/Video/SMS to any application.

Voice broadcasting and text messaging with Call-Em-All's automated messaging service for groups and organizations of all sizes.

Multichannel messaging SaaS to manage SMS, Email and RCS from a single interface. Supports transactional and marketing messaging, automation workflows, OTP authentication and API-based integrations.

It is a plug and play app, to send & receive, single or bulk SMS, MMS , WhatsApp, Telegram & CTI from salesforce.

SupportYourApp is a support-as-a-service company that has been providing secure technical, customer support and CX services to growing companies around the globe since 2010.

It is a sales productivity phone service that makes all of your calls searchable, trackable, and archived in your CRM sales.

It is a perfect communication platform that enables businesses to connect, engage and interact with their users with help of its SMS, Voice and APIs.

Revolutionary SMS Platform that Has Proven to Deliver 10x Better Results than a Traditional Email Auto-Responder. It is the Most Powerful SMS Platform For creating and managing text message campaigns with your subscribers and customers

Build a full text marketing program in minutes without writing any copy or code

AI receptionist that answers calls 24/7, books appointments, and handles customer inquiries. Trusted by 2,500+ businesses across 11 industries. Try free today.

Teckinfo is a leading call center software provider in India. We help businesses manage cloud call center with contact center technology. Contact us!

Perfect for travelers, expats, and professionals. Call real phone numbers, clients and organizations worldwide - simple, affordable, and built for professionals. Pay only for the minutes you use - works instantly from your browser.

SMS upsell platform for Shopify. AI-powered post-purchase campaigns that increase order value through automated text conversations.

Emma is an intelligent Voice AI Agent that automates calls, scheduling, and customer support with natural, human-like conversations.

MetricPoint offers an intelligent AI receptionist for calls, texts, and emails, helping businesses automate scheduling, support, and client engagement 24/7.

Zeitblast is a SaaS SMS marketing platform built for real estate wholesalers, investors and local service businesses. It enables compliant outbound messaging, automated follow-ups, campaign tracking, and lead engagement at scale. Users can launch text campaigns quickly while maintaining carrier compliance and operational control.

Leading business messaging platform in India. Send SMS, Voice, WhatsApp messages with 99.9% delivery. TRAI compliant, enterprise-grade security for BFSI, E-commerce, Healthcare.

An AI receptionist answers every call 24/7, books appointments, and never misses a lead. Zero setup. Works in minutes.

Get free SMS verification codes for online accounts or rent a private number for enhanced privacy. Worldwide coverage including USA, UK, Canada, and more. Secure, reliable, and easy to use.

TeleOSS provides high-throughput SMS gateway software, SMPP/SIGTRAN support, and global messaging solutions.

Droidal Voice AI Agent automates scheduling, insurance verification, prior authorizations, and claim follow-ups. It handles payer calls, updates EHR/RCM systems in real time, and cuts manual work by 70%. HIPAA-compliant and built for healthcare RCM teams.

Omnichannel contact center software that offers streamlined end-to-end communication solutions. Its effective use of data in customer journeys allows seamless experience across all channels. The contact center software easily accommodates the needs of sales and operations, and it offers a wide range of customization as per your business requirements. Whether there’s a requirement to improve productivity or enhance customers satisfaction, it is a perfect match of call center software for all types of business. Opt for it to deliver quick, measurable, and improved call center operations.

Dial in by phone or computer with up to 1,000 callers and experience HD quality sound during each conference call.

It allows you to build fully customizable voice and chat apps that work in the browser. And it even comes with 4 open source templates that help you get started.