The Checktel call recording products consists of a combination of hardware and Windows software. The hardware is connected to the (digital) network connection, being either ISDN or internet VoIP, and the recording software is installed on either a Windows PC or Windows server. Next, the Checktel system records all incoming and outgoing telephone conversations on the hard disk of the designated Windows system. An overview of the actual telephone calls appears on the screen for control purposes.
Windows PC/server
Checktel gateway
All telephone calls are saved as sound files and immediately assigned a file name that indicates the time at which the conversation took place. These file names can be changed later as necessary, for example ‘Jones re: Smith 11 Nov’.
Recording Software
The recording software package is a Windows application that automatically records all telephone conversations on the hard disk. The files that need to be saved can be categorised and archived just like any other computer file. They can be sent as an attachment to an email, copied into another folder and saved on a CD-ROM. One or more conversations can also be copied to an audio CD for instant playback on any CD player.
After a selected period of time has elapsed, for example a month, a week or three days, the system automatically deletes all files that do not need to be saved. Conversations that have been moved to a different folder will be saved indefinitely until they are deleted manually.
Open system
The recorded calls can be played back on all current platforms: Windows, Android, Apple and Linux. The call details however can only be seen on the supplied accompanied call browser and media player application.
Efficient storage
The sound files that Checktel generates are comprised of the original digital sound data. The data rate is 16.000 Bytes/sec, somewhat less then 1 MByte per minute. Neither AD/DA conversion nor compression is used. The conversations are high quality; no compression is used, which means that every voice detail is preserved. The sound quality is equal to that of the original conversation. The two parties are reproduced separately, that is in stereo, with one caller on the left channel and the other on the right. This is especially effective when it comes to understanding conversations in which the callers speech overlap one another.
Connecting to recording system
The Checktel systems are linked up to the recording PC or server using an Ethernet connection. This can be done directly through the PC/server LAN/Ethernet connection or by using a LAN segment with LAN switch. In that case the hardware is connected to a LAN switch or hub. The recommended minimum LAN speed for the segment in question is 100Mbits/sec. A standard LAN switch can be used to link up multiple systems. Alternatively, a PC/server can be linked up to the LAN network and to the SIP 2 Voice system through a second LAN connection (so called dual or multi-homed).