CALLR
CALLR is an extremely helpful app for those who have to deal with call control protocols for their business. You can create a customized call control system that will perform a wide range of functions.
19 Alternatives To CALLR
Applozic
Chat API & In-App Messaging SDK for Mobile & Web Apps Innovate fast, save development cost and delight users with a scalable, secure and customizable Chat
Bandwidth
Bandwidth offers SIP trunking, Emergency communications, and Voice & Messaging APIs.
Brring
Hassle-free conference calling for businesses.
Google Voice
Google Voice gives you one number for all your phones, voicemail organized in an email format, free…
HeyWire
Next-level customer service is just a text message away.
KAPSYSTEM
KAP Computer Solutions Pvt. Ltd.,
Moreify
The leading solution for text message and call verification.
Nexmo
Nexmo is a simple two way SMS API with global reach and wholesale rates
OpenTok
Build a custom video experience using our robust APIs, or add plug-and-play video to your website in minutes using Video Chat Embeds. Start Building for FreeTalk to SalesTalk to Sales .
Releans
Start Marketing campaigns for customers with Releans for SMS, Email & Dynamic links for 225 countries. Get started with a free account.
SendBird
SendBird is messaging-as-a-service.
SightCall
SightCall offers comprehensive real-time video APIs and Mobile SDKs that makes it simple to embed…
Slack
A messaging app for teams who see through the Earth!
Swift SMS Gateway
SMS Gateway is your bridge between the Internet and the world of cell phone SMS text messaging.
Textlocal
Textlocal is an app that allows for individual and group texting. It is designed for businesses that have employers and employees who need to communicate with each other, making it easier to announce group meetings and special announcements.
Twilio
Brings voice and messaging to your web and mobile applications.
VoxImplant
Voximplant is a software program that allows businesses to automate communications by setting up automatic communication systems in the cloud.
Zoho Creator
Business mobile app creation, development and sharing