INTERNATIONAL PHONE CALL 02 - FROM USA TO UK
A call placed from an American landline number to another landline number in the fictional city of Madeupdale, England, UK (area code: 021, phone number format: 2+8 digits).
Timeline breakdown:
0:00 - 0:01 : Phone pick up sound
0:01 - 0:05 : Dial tone USA
0:05 - 0:10 : DTMF signals
0:10 - 0:20 : Busy tone UK (*)
0:20 - 0:22 : Phone hang up sound.
(*) Since the late 1990s, you're most likely to hear a busy tone generated by the switch/gateway in the caller's country, in this case the USA.
Source: ETSI TR 101 041-2 V1.1.1 (1997-05) Technical Report.
Annex to ITU Operational Bulletin No. 955 – 1.V.2010
#phonecall #dtmf #soundeffects #sfx #dialtone #busytone
