CallMe Cloud incorporates our two browser-based IP Audio solutions into one single subscription.
CallMe Click-&-Connect
Browser-to-hardware
Simple connectivity
Click-&-Connect makes it easy for guest contributors and reporters to send broadcast audio with low-delay back to a studio. All that is needed is a web-browser on a SmartPhone, Tablet, PC or Mac.
In the Studio
CallMe Click-&-Connect is widely compatible with most manufacturers’ IP Codecs (both hardware and software) which use SIP and Opus or G.722, such as our low-cost CallMe-T Hardware audio device.
Initial setup
We will arrange everything for you and we only ask for some basic information, like your station’s logo. Once your customised web-page is ready you can share the URL with anyone around the world.
File playback
Send not just your live audio but line up in the browser pre-recorded files and play them live on-air.
CallMe diRECt
Browser-to-Browser(s)
NO hardware codec required
Both the Host and the Guests use only the web browser. No need for any dedicated hardware equipment; just a smart device with a web browser.
2-way conversation with multiple guests
Have a live, high quality conference call with up to 5 guests at the same time and let the system take care of clean feed. The host interface includes a mixer with individual controls to control local front-end gain (where supported) for all participants.
Initial setup
Subscribe – login – generate Guests’ links – share via email, WhatsApp, Text message or QR code – and CONNECT
Lossless RECORDING
Save Guests’ audio into individual, lossless FLAC files with the recording option. The audio is recorded locally, stored temporarily in the Guest’s browser and uploaded to the Host’s in the background in real time. This method guarantees high quality, uninterrupted audio without any drop-outs caused by connectivity issues. Recording can be enabled or disabled for each guest and the host individually.
Safety and Security
The connection between the browsers is end-to-end encrypted with no audio stored on any servers (important for GDPR compliance). The Host is in full control of who joins the conversation.
Technical Specs
- Audio Codecs: Opus, G.722, G.711 (μ-law, A-law)
- Audio Bitrate: 64 / 128 kb/s (selectable for Opus)
- Audio Bandwidth: 20kHz (Opus), 7kHz (G.722), 3.4kHz (G.711)
- Audio Channels: 1 (mono)
- Echo Cancellation: Built-in (selectable)
- Automatic Gain Control (AGC): Built-in (selectable)
- Back-end Device Signalling: SIP (UDP)
- Compatible Browsers: Any supporting WebRTC (Google Chrome, Apple Safari, Microsoft Edge, Mozilla Firefox, Opera)
- Compatible Back-end Devices: Any supporting above Audio Codecs and Back-end Device Signalling
- Supported Back-end SIP Topologies:
- Device registered to CallMe server
- SIP URI
- Direct to device
- Via external server (with optional browser-based credential prompt for temporary registration of caller with external server)
- Back-end Devices per CallMe Link: Unlimited (in hunting group)
- Compatible File Playback Formats: Browser-dependent; baseline support for:
- FLAC
- MP3
- Ogg/Vorbis
- Opus
- WAV/PCM
- Audio Codec: Opus
- Audio Bitrate: Dynamic (typically 64kb/s)
- Audio Bandwidth: 20kHz
- Audio Channels: 2 (stereo) / 1 (mono) (selectable)
- Echo Cancellation: Built-in (selectable)
- Automatic Gain Control (AGC): Built-in (selectable)
- Encryption: End-to-end (DTLS / SRTP)
- Compatible Browsers: Any supporting WebRTC (Google Chrome, Apple Safari, Microsoft Edge, Mozilla Firefox, Opera)
- Recording File Format: FLAC (lossless), one file per participant
Other CallMe products
RØDE CallMe
RØDE CallMe on RØDECaster Pro II and Duo - connect to others and receive calls in Broadcast Quality
CallMe-T
Low-cost hardware IP stereo audio codec for studio and home use.
CallMe-G
IP upgrade for Glensound GSGC5 ISDN field mixer adding 4G and WiFi capability.
CallMe-TX
Windows-based Cost-effective Expandable Multi-Channel IP Audio Codec