In the latest version, the number concept has been revised in order to meet requirements for standard number mapping even for inter-location installations. One of the essential reasons for this is to allow for the potential use of standardized number plans in inter-location installations, as well as generally enhancing flexibility in call number mapping. The essential changes and the consequent new options are explained below.

The number mapping explained in this chapter describes the mapping of internal numbers for a user to external call numbers. Number mapping should not be confused with the number replacement which can be defined on a trunk group. Number replacement specifies how numbers (number ranges) can be replaced by other numbers/ranges (see Special number replacement:).

In this context, please note the following definitions: Forwardings are in relation to a trunk group and establish whether a call via this trunk group can fundamentally leave the SwyxWare installation (see chapter Routing). The call permission for a user or a trunk group defines whether a call has the right to be made via this trunk group (see chapter Profiles).