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directory number | |||
call number | |||
subscriber's number; telephone number |
numéro d'appel : 45 phrases in 8 subjects |
Aviation | 1 |
Communications | 16 |
General | 2 |
Information technology | 4 |
Microsoft | 1 |
Social science | 4 |
Telecommunications | 16 |
Telegraphy | 1 |