A captioned telephone displays the text of the conversation on a monitor built into the phone so the person with hearing loss can follow the call. For this type of conversation a special telephone is required. Captioned telephone, or in short CapTel (brand name) is designed to enable people who are hard of hearing, oral deaf or late deafened to make phone calls. The way it works is that when a person with hearing problems answers the phone, he looks at the screen and everything a person says on the other line is displayed as a text message. Captioned telephone is not available everywhere, only in those states that has CapTel as a part of their relay service. However, the majority of states do have this system available. There are several variations of a captioned telephone but the most popular ones are two line captioned telephone and web captioned telephone. The two line telephone can be used with two lines, as the name says. This type is easier for people because they can only give out their home bžnumber rather than giving both home number and the number of their captioned phone. Web captioned phone enables phone calls to be placed with captions, using the world wide web browser in their computer or smartphone. There are also other variations of captioned telephone such as VCO to VCO, HCO to HCO, HCO to TTY, and VCO to TTY.