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Voice Logger Selection Guide
These are the factors to consider in order to select the best voice logger for your particular application: Telephone Line Types All of our voice loggers can record analog lines, but only two models can record digital lines (including VoIP): ? CallPad-100: Analog audio signal is extracted/recorded from the handset/headset. This requires the logger to be placed near the telephone set, which is what the CallPad-100 is designed for. ? VLAN-EDiL: A true digital line recorder when equipped with the proper interface card. Number of Ports Be sure to include some extra ports for future expansion. Storage Capacity Some loggers have internal data storage while others have the data stored externally (usually in a host computer). For the ones with internal storage, the system will delete the oldest data and resue the space when the storage is about full. This may happen in a few weeks’ time or a few months’s time, depending on the usage rate. Choosing the right amount of storage is crucial for keeping the data long enough before it’s deleted or archived. Here’s an example for calculating the needed storage amount: ? Typical storage rate is 70 hours per GB ? Assume 3 hours per line per day for usage rate ? Assume 60 days for data retention time ? Storage requirement = 3 x 60 / 70 = 2.6 GB + overhead = 3 GB per line Data Archival & Web Access Data archival and web access are standard on some models, optional on others. If data archival is not desired, be sure the storage capacity is big enough to guarantee the minimum data retention time. Live monitoring This is the capability of monitoring (listening in) on live calls. Web access is usually required for this operation. Standalone Operation Being able to operate without a host computer, these models provide built-in keypad & LCD display for direct data access. However, standalone operation is typically limited to low-port-count applications due to the lack of sophisticated search capability.
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