As a call bridge device, you can call DialMate from any phone, wait for three rings and then hang up. After five seconds, you can redial DialMate's number. On the third ring, DialMate will automatically answer and upon entering the preprogrammed security code and the digit "1", you can then call any number. The first leg (from your location to DialMate) of the call will be charged to the phone number where you are calling from, but the second leg (from DialMate to the called number) will be charged to DialMate's location. You would normally use call bridge when you are within the local (toll-free) calling area of DialMate or your cellular phone allows free air time to call a designated number. It also extends cellular phone calls to international destinations without paying a premium and without modifying your calling plan. 

During call bridge, the first leg of the call (from your location to DialMate) will be charged to the phone where you are, but the second leg (from DialMate to the called number) will be charged to DialMate’s location.  For instance, call bridge allows you to make a local call to DialMate (from a pay phone or office phone) and then use your home line to make long distance calls. 

Call bridge is equally useful for cell phone users who have unlimited free calls at certain times within their roaming area or those who have free air time calls to a designated number.  By bridging the call, you will be charged only for the second leg of the call (the land-based line where DialMate is installed). 
And if you are enrolled in a nationwide Friday free calling promotion of a major long distance carrier, the cellular phone call will be totally free to anywhere in the country on Fridays.