Supported number formats for Fax-for-Applications

Retarus supports all common international standard formats for telephone numbers. The various functional blocks are interpreted correctly even if they are separated by a space (" "), hyphen ("-"), slash ("/"), or dot ("."). Combinations of supported delimiters are also possible, as well as enclosing the local prefix in parentheses (round brackets).

It is recommended that all numbers be submitted in international format, including the country code, which may be preceded by a plus sign ("+") or double zero.

Unsupported formats

Numbers in international format where the leading zero is enclosed in parentheses are not supported.

Example

+49 (0)89/ 5528-1919

North American Numbering Plan (NANP)

Telephone numbers in the United States of America and other North American countries follow the North American Numbering Plan (NANP) structure. It is recommended to submit them in international format, although the local format is also supported if the profile is configured in the appropriate country.

Example

+1 301 555 0100

German Numbers (DIN 5008)

In Germany, the format of phone numbers is specified in the DIN 5008 standard. It requires the separation of the different functional blocks by spaces (" "). Trunk and internal numbers are separated by a dash ("-").

Example

+49 89 5528-1919 (DIN 5008 since 2011)
+49/89/5528-1919 (DIN 5008 from 2001)

Recommendation of the International Telecommunication Union (ITU-T)

The international representation of telephone numbers is specified in the International Telecommunication Union (ITU-T) E.123 recommendation. The recommended format uses a plus sign ("+") before the country code, and the different functional blocks of the number are separated by spaces (" ").

+1 301 555 0100
+49 89 5528 1919