Voice Logger Selection Guide
These are the factors to consider in order to select the best voice logger for your
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
Number of Ports
Be sure to include some extra ports for future expansion.
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.
This is the capability of monitoring (listening in) on live calls. Web access is usually
required for this 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.