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 |
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Famous quotes containing the word differences:
“Traveling, you realize that differences are lost: each city takes to resembling all cities, places exchange their form, order, distances, a shapeless dust cloud invades the continents.”
—Italo Calvino (19231985)