A Personal Identification Number (PIN) is a numeric password that FreePBX can use to authenticate users when they attempt to dial specific features on the PBX such as outbound routes or DISA. Without entering a valid PIN, these features are inaccessible. A PIN set provides the ability for a group of PINs to be used to authenticate the use of a feature instead of just a single PIN. With a PIN set, each individual user can be given a unique PIN, and it is possible to revoke one user's access to a PBX feature without changing anyone else's PIN.
In addition to authenticating users, PIN sets can also be helpful in tracking which users used which features. When a PIN set is used as an authentication mechanism, FreePBX can log which unique PIN was used to access a feature in the accountcode
column of the call detail records. Even if a user places a call from someone else's extension, they will need to enter their own account code. When generating a report of which users used certain...