This memory card is necessary if you want to get the best from the Truecall call screener and call recorder unit. The following review applies to that unit. It is taken from The Consumer Action Group website was written by Steven Hall:-
"This is a complete phone call screening system. It is absolutely brilliant.
It is dead easy to set up - plug it in and follow the voice instructions played over the built in loudspeaker. The full function version then rings you up to complete the set up and record a welcome message.
The full function version has the call recorder as an add on option which I assume is fitted in what follows.
CALL RECORDING
Call recording is just by a single press of the button altough you can configure it to automatically record all calls. However, this is not necessary with the fantastic buffer system. If you start recording a call in the middle it records the entire call, EVEN THE BIT BEFORE YOU PRESSSED THE BUTTON.
The name the person gave at the start of the call is also recorded.
You can play back on the machine. Better, you can remove the memory card and plug into the USB port on the computer with a special adapter. The card also has the software to review and copy the calls. They can be stored on the computer as .wav files.
Files are date and time stamped but you have to set the time and date on the recorder using the options menu system. This is not difficult and, as for everything else on this system, you are guided through the process by spoken instructions.
CALL SCREENING
When anyone calls, the system plays a welcome message and then asks them to say their name after the tone before it rings your handset.
If they don't say a name, it plays a message saying that this number doesn't accept anonymous calls and hangs up on them.
If they do give a name, it then rings the handset and tells you you have a call and gives their name. You can press '1' to accept the call or hang up. In that case they get passed to your messaging system.
There are also two other options - if you press '*' it adds them to your 'star' list. Thereafter, whenever they ring they get straight through without the message - ideal for family and friends.
If you press '#' it adds them to you 'zap' list and thereafter will never put hem through at all. These 2 options only work if you have caller ID, which you may be charged for by your phone supplier - it is free from BT. You can also 'zap' a call in the middle of the call. The other party gets a message saying you are not interested and not to call again.
There is loads of additional functionality and you can personalise all the messages rather than using the ones supplied. I haven't played with these as I wanted to see how it worked 'out of the box'.
The only problem I had was that I kept getting a message every couple of minutes that someone had rung whilst I was on the phone and then getting put through to my 1571 box. This is a signalling problem with Virgin broadband it turns out and trueCall gave me a code to turn off that function. (It would have become incredibly annoying otherwise).
There is also a service provided by the vendor to control the unit over the internet. This service also keeps a complete log of calls in and out. There is a charge for this service.
TrueCall is not cheap - £100 for the full-function unit plus £20 for the memory card and software but for someone being seriously harassed it could be worth every penny."
Truecall is being recommended by The Consumer Action Group for people who are suffering harassment on the telephone. Actually the Truecall will do far more than that.
For those who are concerned about recording calls without first giving warnings:- you are entitled to record calls without warnings if the recordings are for your own use. This would include using the recordings as evidence in a complaint or legal action for harassement. There are several discussions about this on The Consumer Action Group website.
The only down side with Truecall is that it is a bit pricey. However, you are getting a Rolls Royce unit!