Sites and apps similar to Bandwidth include Telnyx. It's paid, but Wazo and Atomic SMS Sender are free. Other options are Twilio, SMSAPI, Hilos by ActiveCampaign and iP.1 RESTful API. There's no shortage of Email Marketing Services like Bandwidth, with more than 50 alternatives for Windows, Android, iPhone, Mac and Linux.
The Hangouts API provides the programming interface to Hangouts video calls. It provides a JavaScript interface that enables your app to do such things as list the Hangout participants, share data between instances of your app in the Hangout, control some aspects of the user...
XiVO is an IP-PBX, a unified communications platform that connects phones on a local or private network with other networks such as public landlines and mobile telephones.
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MessageBird is a cloud communications platform that connects over 15,000 enterprises to their global customers via the fastest and most reliable SMS, Voice and Chat APIs in the world.
KAP Computer Solutions Pvt. Ltd., (KAPSYSTEM) pioneer in BULK SMS Solutions. KAPSYSTEM provides messaging and voice communications with comprehensive and customized platform for all businesses.
India
Tellephant is a one stop shop for everything you need to grow your business. Make your business more accessible with WhatsApp!
SightCall offers comprehensive real-time video APIs and Mobile SDKs that makes it simple to embed video calling and video conferencing into any application. SightCall provides a WebRTC Platform for healthcare, customer service and enterprise collaboration and has prepackaged...
United States
Aculab Cloud presents a way of creating automated telephony applications by handling all the telephony resources in a cloud-based platform. Through the use of simple, high-level language APIs, Aculab Cloud makes it easy for you to create telephony applications that control...
United Kingdom
Cheap SMS Gateway with simple API and 24/7 Support. Pricing cheaper than Twilio in 2-3 times. Good choice for startups.
Blitzz is a video powered, enterprise field service platform that quickly becomes the smart, system of record for all collaborative events between field techs, HQ support and end users of physical equipment in the field.
United States
Effortlessly send offers with files, images & web links via SMS. With 1,65,000 customers, Textlocal is India’s No.1 SMS Alerts and Marketing Platform. Overcome the tedious API integration with reliable, robust & easy-to-integrate bulk SMS APIs.
United Kingdom
Flashy helps you get to know your contacts and deliver to each one of them the right message at the right time via email, SMS and Push notifications in applications and web browsers.
The TENIOS Voice API enables the integration of speech services into your cloud telephony. Programmable, secure and scalable.
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