VoIPmonitor is open source live network packet sniffer and call recorder for linux or posix unix which analyzes SIP and RTP protocol. It can run as daemon or analyzes already captured pcap files. Free VoIPmonitor can decode only G.711 codec. Commercial version can decode from G.729/G.723/GSM/Speex/iLBC. One of unique feature of VoIPmonitor is decoding phone calls which are changing codecs during call. Synchronisation is achieved with jitterbuffer simulator so every single file is properly synchronised.
Open Unified Recording
Call recording for IP-based telephony environments using packet capture engine. Commercial version of the product (Unified Recording) includes encryption, Screen Capture, Analog/Digital/Asterisk.
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.
VTLogger
VTLogger is an open source (L-GPL) PC/server based call recorder that can be used trunk and/or station side. Records up to 960 channels and stores calls in wave and ogg file formats. Codec support includes G.711, Speex and Vorbis. Captured call information (CDR) is stored in databases or CSV formatted files. VTLogger can be configured to provide continuous, rule-based, voice activated or on demand recording. It uses internally designed and manufactured telephony line interface boards to passively tap the trunk lines and/or extensions. Retrieval of call records for listening is via a web based GUI.
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