Because cables can't be bungee cords.
This great little 3m cable is designed to work directly between Phones and wall sockets that both use RJ12 sockets (as pictured). Not only can this cable extend the range of your home/office phone but it can also handle your fax machine, answering machine and modem. Very handy to have around!
Because of the RJ12 standards, these phone cables are direct-run only and are only available as male to male, so you need to replace your cable with one of the correct length rather than extend your current cable. This also helps eliminate interference, signal loss and mixed-quality cabling!