Address Signaling

In CCITT No. 5, address signaling is based on the combination of two frequencies, as illustrated in Table 3-6. The address signaling sequence starts with KP1 for national numbers and KP2 for international numbers. Codes 11 and 12 are used to connect international operator services.

Table 3-6. CCITT No. 5 Address Signals

Signal

Frequencies in Hz

Dig

t 1

700 and 900

Dig

t 2

700 and 1100

Dig

t 3

900 and 1100

Dig

t 4

700 and 1300

Dig

t 5

900 and 1300

Dig

t 6

1100 and 1300

Dig

t 7

700 and 1500

Dig

t 8

900 and 1500

Dig

t 9

1100 and 1500

Dig

t 0

1300 and 1500

Code 11

700 and 1700

Code 12

900 and 1700

KP1

1100 and 1700

KP2

1300 and 1700

ST

1500 and 1700

0 0

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