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ITU-T E.123 (02/2001)

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Notation for national and international telephone numbers, e-mail addresses and web addresses
This Recommendation applies specifically to the printing of national and international telephone numbers, electronic mail addresses and Web addresses on letterheads, business cards, bills, etc. Regard has been given to the printing of existing telephone directories. The standard notation for printing telephone numbers, E-mail addresses and Web addresses helps to reduce difficulties and errors, since this address information must be entered exactly to be effective.
Citation: https://handle.itu.int/11.1002/1000/5341
Series title: E series: Overall network operation, telephone service, service operation and human factors
  E.100-E.229: International operation
  E.120-E.139: General provisions concerning users
Approval date: 2001-02-02
Approval process:TAP
Status: In force
Maintenance responsibility: ITU-T Study Group 16
Further details: Patent statement(s)
Development history