Regional Differences
Different countries often use different standards for transmitting caller ID. As a result, phones purchased in one country may not be compatible with the caller ID standard use when the phone is used in a different country. For example, US uses Bellcore FSK whereas Taiwan uses ETSI FSK so a phone purchased in the US will not understand Taiwan's caller ID standard. There are even cases where individual state/provinces will use different protocols within a country. There do exist, however, caller ID converters that will translate from one standard to another. Below is a list of countries and the caller ID standard used:
| Country | Caller ID standard |
|---|---|
| United States | Bellcore FSK |
| Canada | Bellcore FSK |
| China | Bellcore FSK |
| Hong Kong | Bellcore FSK |
| Ireland | ETSI FSK V23 (ETS 300 659-1) Ring Pulse Alert Signalling. Data sent after first short ring. |
| Taiwan | DTMF / ETSI FSK |
| United Kingdom | SIN227 (V23 FSK before first ring) |
| Japan | V23 FSK / DTMF |
| Spain | ETSI FSK |
| Brazil | Bellcore FSK / V23 FSK / DTMF |
| Norway | ETSI FSK |
| New Zealand | Bellcore FSK |
Read more about this topic: Caller ID
Famous quotes containing the word differences:
“I may be able to spot arrowheads on the desert but a refrigerator is a jungle in which I am easily lost. My wife, however, will unerringly point out that the cheese or the leftover roast is hiding right in front of my eyes. Hundreds of such experiences convince me that men and women often inhabit quite different visual worlds. These are differences which cannot be attributed to variations in visual acuity. Man and women simply have learned to use their eyes in very different ways.”
—Edward T. Hall (b. 1914)