"callPSTN" now requires a caller id
Starting on April 25 we change our callPSTN API: “caller id” is no longer optional and must be specified.
2018-04-04
221426Blog
2018-04-04221426
Audio and Video record`s URL length can be more than 255 characters.
To make our platform better we are now removing the limit, so URL length can be longer than 255 characters.
2018-03-30217124
Lossless audio recording support
Voximplant now can save audio without compression.
2018-03-15221663
ES7/2017 JavaScript syntax support
Both our cloud JavaScript engine and Web JavaScript editor now support modern JavaScript syntax.
2017-10-16130559
Safari 11 support
The latest version of our Web SDK is fully compatible with the new Safari 11 audio/video calls support.
2017-09-21131427
Messaging update
A brand-new messaging API was added across Web, Android and iOS SDK.
2017-08-17148609
Hot Summer Speech-to-Text Updates
Following Google’s release of new Speech API, we are happy to announce improved quality of call records transcription.
2017-08-14134454
H.264 video call recording is now available (in mp4 format)
We are happy to announce that video calls that use H.264 video codec can now be recorded. Recorded video calls that use H.264 will be stored as mp4 files (calls with video in VP8 format are stored as webm files).
2017-05-02133088
Voximplant mobile SDK for Unity is now available
Now Unity developers can use the SDK to embed real-time voice and video communication into VR/AR apps and games in minutes, we will take care of complexity and infrastructure.
2017-04-17127459
VoIP Push Notifications support for iOS SDK has arrived
Voximplant now supports VoIP Push Notifications for calls to iOS SDK.
2016-12-28133634
New billing for video calls running via servers
Video calls that go via Voximplant servers (not P2P ones) are billed per megabyte of video traffic.
2016-12-14129352
Blind transfer support for SIP phones
Blind transfer is when a person who transfers the call won't talk with the person to whom he transfers it.
2016-12-07132338
Introducing integration with ElevenLabs Conversational AI
Connect any Voximplant call to ElevenLabs Conversational AI agents
2025-06-0923572
Cartesia Realtime TTS now available in Voximplant
Voximplant now includes a native Cartesia module for streaming, low-latency text-to-speech (TTS). You can use a single VoxEngine API to synthesize speech in real time, connect it to any call (PSTN, SIP, WebRTC, WhatsApp) and control playback from a Large Language Model (LLM) or other source, all inside VoxEngine.
2025-11-186253
New WebSocket privacy feature for compliance-oriented environments
Voximplant has added a WebSocket privacy option that redacts message payloads from logs across all WebSocket-based services – Voice AI connectors and external speech system – and speech control modules
2026-04-23214
Voximplant Kit updates. January 2025
New Features in Voximplant Kit: Update overview. We are constantly working to improve our product to make it easier to use and more effective for you. In this update, we have added several useful features. Here’s what’s new:
2025-02-1468637
Inworld Text-to-Speech now available in Voximplant
Voximplant has new realtime speech generation for voice AI from Inworld, our latest Voice AI text-to-speech (TTS) partner. Together, we combine state-of-the-art TTS with carrier-grade connectivity so you can build voice agents that sound like your brand, not a generic robot.
2025-12-0810728
Extend Cartesia Line Agents to SIP, WhatsApp, and Global Phone Networks
Voximplant now includes a native Cartesia Line / Agents connector that connects any Voximplant call to a Cartesia Line voice agent for real-time, speech-to-speech conversations—over PSTN, SIP, WebRTC, or WhatsApp Business Calling—without building custom media gateways or WebSocket streaming infrastructure.
2026-02-115576
Secrets for secure credential storage
Voximplant has added Secrets, a dedicated credential store for API keys, tokens, and other sensitive values that VoxEngine scenarios need at runtime
2026-04-27131
Ultravox adds SIP to its Voice AI Services using Voximplant
Today Ultravox announced they are directly integrating Voximplant into their platform to provide SIP capabilities. The integration builds on Voximplant’s deep telephony and Voice AI tooling
2025-10-295356