Formatting Fax Numbers

InterFAX is designed to be as similar to dialing a standard fax machine as possible.

The principle is to specify a fax number as if you were dialing it from a standard telephone, however you may add access codes (long-distance, international), as well as country codes and area codes. If no explicit access codes or prefixes are specified, then InterFAX will automatically add them according to your user settings.

For reading convenience, a fax number may contain special characters such as hyphens, parentheses etc. Any non-digit character is ignored, with the exception of a plus sign (+) which is used as a generic International Access Code. Fax numbers that contain brackets needs to be written as quoted string.

Please see the examples below.

The safest format to use

If you are not sure what your user settings are, simply use the following standard international access notation:

+(country code)(area code)(fax number)
for example: +1-212-9876543
or +44-208-1234567

Other international fax number examples

Example 1

(User configured to dial from New York, NY, USA)
Faxing from USA to UK:

Option 1: +44 161 999 8888
Option 2: 011 44 (161) 999 8888

Note that a US-based user (as defined by account) can dial the US-specific international access code 011.

Faxing to another area within the United States:

Option 1: 14089998888
Option 2: +1 (408) 999 8888

Faxing to another number within New York:

Option 1: 222 8888
Option 2: 1-212-222 8888
Option 3: “+1 (212) 222 8888”

Example 2

(User configured to dial from London, UK)
Faxing from UK to USA:

Option 1: +1 212 999 8888
Option 2: “001 (212) 999 8888”

Note that a UK-based user (as defined by account) can dial the UK-specific international access code 00.

Faxing to another area within the UK:

Option 1: 01619998888
Option 2: +44 (161) 999 8888

Faxing to another number within London:

Option 1: 222 8888
Option 2: 1-212-222 8888
Option 3: “+1 (212) 222 8888”

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