Aastra Telecom AastraLink Pro 160 - Manual (Page 276)

What is the Difference Between the Administrator Phone and User Phones?
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AastraLink Pro 160 Administrator Guide
If there are multiple AastraLinks present on the LAN, then the Aastra IP phone UI
displays the list of AastraLinks. You then select which AastraLink the phone
should use to obtain its configuration file.
As administrator, you have the option to control new phone registration on your
network. That is, if you wish, you can use the Web UI to restrict new phones from
registering.
What is the Difference Between the Administrator Phone and User
Phones?
The first IP phone you register with the AastraLink Pro 160 becomes the
administrator phone. The administrator can configure and manage the AastraLink
Pro 160, as well as configure all Aastra IP phones and user accounts on your
network.
Once you register an administrator phone with the AastraLink, all other IP phones
are registered as user phones. If you wish, you can assign administrator privileges
to a user phone (s) using the Web UI.
Do I Ever Need to Re-Register IP Phones?
If an IP phone has been previously registered with the AastraLink Pro 160, it
maintains the configuration information (user name/password/extension) even if it
is removed, and then reinstalled, on the network.
Even if you set the IP phone back to its factory default settings, then all
AastraLink registration information is erased locally from the phone; however
when you re-connect the IP phone to the network, the IP phone re-discovers and
re-registers with the AastraLink Pro 160 device.
Can I Access My IP Phone Network From a Remote Office?
Yes! The AastraLink provides remote office support. See Appendix A, “Remote
Office Configuration of the IP Phone (Phone-Side)” for instructions on installing
and registering remote user IP phones.