Features | Future Development | Typical Configuration

Logger is an open source, web driven application suitable for building PC based Call Logging/Recording solutions. It operates with our range of high impedance analogue and primary rate line interface PCI hardware. This offers users the options to record/monitor calls on analogue trunk lines (POTS) and PBX extensions/stations/handsets, as well as on E1/TI trunk lines from your Telco or PBX.

Typical commercial voice loggers can cost around US$1000/channel. By using Logger, you can build a multi-channel analogue or Primary Rate (E1/T1) system for the price of a PC/Server and an OpenLog,OpenPCI or OpenPri (dual E1/T1 Hi-Z span) card. This can equate to as little as US$60/channel for a Primary Rate system.

Call recording systems can be applied to many industries. Typical environments for Call Logging/Recording applications include:

• The finance and banking industry where calls are recorded to verify transaction dealings.
• Call centres and help desks that monitor calls to be used as customer service training aids.
• Emergency response services where calls answered are often life threatening in nature.
• Corrective institutions that monitor calls for illegal activities.
• Dictation services for Legal and Medical practitioners.

Activate, Navigate and Operate Logger with a Click of a Mouse!

Logger is driven by simple and intuitive web based GUI screens. All you need is access to a web browser and the Logger Server. Use your desktop PC to:

• Configure your call recording system.
• Sort and view call information.
• Listen to recorded conversations.
• Check the status of the lines.

Seamless integration between Line interface hardware

Logger seamlessly integrates our analogue and primary rate line interface cards, requiring very little configuration from the user. A single PC based call recording system using our hardware can simultaneously record conversations on the E1/T1 trunk lines as well as on analogue handsets.

Suitable for small or larger installations

Our OpenLog4 card enables connection to analogue trunk lines and/or PBX extensions. Expanding the number of lines or extensions to record is easily accomplished by inserting additional OpenLog4 cards into your PC. This is limited to the number of PCI slots. Note: Logger can't record off proprietary handsets directly. Splitters may be needed to separate the audio signals and any proprietary control information.

The OpenPCI series enables up to 8 ports to be recorded simultaneously on a single PCI card. This effectively doubles the analogue channel capacity previously made available through the use of the OpenLog4 card. You can add up to 4 OpenPCI 8 port PCI cards in a single server to give you 32 channels of analogue recording.

Connecting to E1/T1 lines is possible using the OpenPri dual E1/T1 Hi-Z span PCI cards. Adding multiple cards in your server allows you to record multiple E1/T1 spans.

Sort, View and Listen to Recorded Conversations from your Desktop

Users can quickly search through and find their particular recordings of interest by entering information in the from and to date-time fields on the viewer web screen. Date-time fields allow you to enter year, month, day, hour and seconds. A more detailed search can be undertaken by entering a specific channel of interest.

Once the resulting list of recordings appear, just click to listen. Additional call information (ie. Caller Id, duration of call, dialled numbers etc.) are made available by clicking on the details icon.

Logger provides details of the following in relation to the recorded conversation:

• Call direction of the call, whether incoming or outgoing.
• The phone number (only if caller id is available for incoming calls and the dialled number on outgoing calls).
• Date/time information and duration of call.
• Compression and audio format.

Automated Triggers for Recording

Logger currently supports two methods in triggering recordings on analogue connections. These include Line Voltage or VOX (energy) threshold detection. The line voltage option determines, via voltage levels changes on the line, when the handset has been taken off hook or placed back on hook.

The VOX threshold option essentially calculates energy levels in the audio path and determines whether a conversation is in progress or not. This is only used in extreme environments where the telco or PBX phone system doesn't provide clean line voltage signals for onhook and offhook states.

Logger's administration screen provides the ability to tune the VOX threshold and runon parameters to suit the line conditions.

Recordings on the primary rate line are automatically triggered.

Compression modes

Logger provides the option of recording in wave format or MP3 format. These include:

• 16 bit linear, Mu-Law and A-Law for wave and MP3 formats.
• Can be expanded to support GSM and Speex or any other host based coding algorithms.

Open Source equates to a lower cost of ownership

Logger is an open source application and source code can be downloaded freely from here. Build/customise your own call recording system by leveraging off our hardware and software building blocks.

Future developments include supporting:

• Manual triggering of recordings.
• Onboard lower audio compression algorithms.
• Archive off harddisk.
• Live monitoring/playback.