Users
18
SIPxNano IP-PBX Getting Started Guide
3 • Users
Extensions
In general, if you assign User IDs that include alphabetic characters you will also set up a numeric extension for
each user. If you assign numeric-only User IDs to your users, an additional extension may not be needed.
When you set up an extension or alias for a User ID, SIPxNano automatically adds them to a database of User
IDs and all of the extensions and aliases associated with each one. The components of the Comm Server use
this Alias database, as well as the lines stored in the Registration database, to help the Comm Server route
incoming calls: regardless of whether a call is addressed to a User ID, an extension number, or an alias, SIPx-
Nano routes the call correctly to the user’s assigned device(s) (see
table 2
).
SIPxNano also stores all extensions in its Extension database. If an end user logs in to a voicemail inbox from
the phone top interface with an extension number, the Media Server uses this database to confirm the log in
data.
If you use extensions to identify users, you can use extension pools to manage the set of usable extensions and
keep track of numbers that have already been assigned to users.
•
Extension pools are not hierarchical, and each extension number can only be assigned to a single pool. You
might set up just one pool for your installation, or several pools to reflect different geographical locations,
departments, or other organizational structures.
•
When you add a new user, you can supply an extension either by typing in an extension number, or by
choosing the next available extension from a pool. Since SIPxNano extensions must be unique to each user,
using an extension pool can help speed up the assignment and data entry process.
For information on setting up extension pools, see
“Extension Pool”
on page 24.
Note
To prevent certain values from being assigned to users as either extensions or
User IDs, you can place numbers in the “reserved” extension pool. For
example, you can add the extensions that identify the Voicemail and Auto
Attendant applications to the reserved extension pool. If you do so, those
numbers cannot be inadvertently used to identify users.
Table 2. User IDS and SIP URLs
User information:
Dialed SIP URL:
User ID = jsmith
Extension = 123
Alias = jane_smith
