Open Source Free VoIP Voice Recording Software

VoIP recording software captures the RTP (Real Time Protocol) voice streams from switches or softswitches and passes the captured stream to speech codec decoder. Various decoders such as G.729a/b/c G.723, G.711a/u, GSM and various other speed codecs decodes the captured stream in the MCF file format which is later converted into WAV or MP3 file format.

Some Open Source free VoIP recording software will save the (Call Detailed Record) into Database with comprehensive information such as Local Extension, dialled number, duration, time of the call, play and number. By using this type of software you are able to search call recording archives and filter through.

Here is a list of Free Open Source VoIP call recording software.

Oreka Free VoIP Recording Software

Introduction

Oreka is a modular and cross-platform system for recording and retrieval of audio streams. The project currently supports VoIP and sound device based capture. Recordings metadata can be stored in any mainstream database. Retrieval of captured sessions is web based. For more details, please refer to the features page

Features

Oreka currently has the following features:
Recording and storage

* Record VoIP RTP sessions by passively listening to network packets. Both sides of a conversation are mixed together and each call is logged as a separate audio file. When SIP or Cisco Skinny (SCCP) signalling is detected, the associated metadata is also extracted
* Record from a standard sound device (e.g. microphone or line input). Can record multiple channels at the same time. Each recording goes to separate audio files
* Open plugin architecture for audio capture means that the system is potentially capable of recording from any audio source
* Plugin architecture for codecs or any other signal processing filter
* Automatic audio segmentation so that continuous audio sources can be split in separate audio files and easily retrieved later
* Capture from multiple Network devices in parallel
* Capture from pcap trace files
* Voice activity detection
* A-Law, U-Law and GSM6.10 codecs supported as both wire and storage format
* Automatic transcoding from wire format to storage format
* Recording metadata logged to file and/or any mainstream database system

User interface

Recordings retrieval can be done using the following criteria (when available):

* Timestamp
* Recording duration
* Direction (for a telephone call)
* Remote Party (for a telephone call)
* Local Party (for a telephone call)

Compatibility

Oreka has been reported to work on the following platforms and should actually work on many more.

* Cisco CallManager and CallManager Express v. 3.x, 4.x and 5
* Lucent APX8000
* Avaya S8500
* Siemens HiPath
* VocalData
* Sylantro
* Asterisk SIP channel

License

Oreka is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation.