Voximplant can also save recordings to a user-specified storage on Amazon S3. Contact support for details.
By default, audio is stored as an mp3 file with the following quality: mono 8kHz 32kbit/s. You set custom quality by adjusting the recorder parameters. For audio recording only, the Recorder module provides additional functionality: naming a recording for the call history, stopping a recording, mixing multiple audio tracks into one and creating secure recordings that require HTTP auth for access.