Fax zones Introduction Faxing may be expensive. In many country, phone charges vary based on distance. Various phone area may be defined with access rules letting people fax under control. 11.. IIDD Each fax zone has an ID. It is a string which will be used in various reports and error messages. 22.. PPhhoonnee zzoonnee pprreeffiixx This is the prefix of a phone number which identify an area. Every phone number matching this prefix will be managed by the rule defined below. 33.. PPhhoonnee nnuummbbeerr lleennggtthh When managing a fax, the gateway pick the phone number and strips all non digits. The result must match the "phone number length". If not, the email-fax is rejected. 44.. AAcccceessss rruullee Pick a rule you have defined in the "Fax access rule". This control who can fax to this zone and from where.