Surveillance Equipments
They are capable of capturing telephonic conversations which can be played later. The audio phone call equipments come with phone call recorders which can record conversations of both sides. Not only that they can display all the telephone numbers which have been dialed.
There are primarily 2 types of phone recording surveillance equipments. One which are Line Activated. The other is which can be activated by voice. The line activated equipments do not use battery power for a long period of time. So, if it takes a month to accrue phone conversation of 15 hours it will require no recharge for that period of time. It has 2 AAA battery which lasts for a long time. The Voice Activated recorders have a short battery which last only for about 8 hours. It is regardless of the fact how many calls have been made.
These recording equipments come with a feature called as Auto Advance.
This feature enables recording even when one folder is already filled. The system it self creates another folder automatically when a folder gets filled.
This means that you can accumulate any number of phone calls during a month’s time without deleting any recorded phone call.
Surveillance phone recorders can be used for many purposes. Many of these devices can even record while the receiver is lifted up. These devices are automatic and stop when the phone call is on hold. They are apt even to record even the extension calls on the same phone line.
So surveillance phone call systems are best in the offices as well homes to keep a check on all the conversations taking place on phones.