More on Amazon.com : http://www.amazon.com/gp/product/B008959L4Y?tag=thefatkidin06-20 <br /> <br />T-lock Outgoing Call Blocker w/ Allow Memory and Cut-off Timer <br /> <br />This discrete telephone box hides an electronic circuit that allows you the owner to retain full control of your phoneline while imposing outgoing call restrictions <br />Call Off Timer function - This feature allows you to limite the lenght of calls to 1-99 adjustable - cut-off timer applies to incoming and outgoing calls <br />The Allowed memory can hold up to 250 digits You can add any combination of phone numbers area codes and prefixes <br />Applications Vacation Homes Household with teens Workplaces with unsupervised employees Public Long Distance Telephone Booths Call timer feature Military bases to Limit the lenght of calls etc <br />4-digit security code bypasses all restrictions - Works on DTMF landlines voice services and VOIP lines - Easy to install program and use - One unit can protect all extensions - Line Powered no batteries no external power needed
