Phone sockets, dial tones and hard-wired phones abroad can differ from the ones you are used to. In some cases, telephone lines can be of poor quality, which can also make it difficult to use your modem. Some systems can even be incompatible.

Since different telecommunications systems and standards exist around the world, we recommend that you familiarise yourself with your own equipment and with the technology used in the countries you will be visiting. Talk to your telephone company for more information.