Avaya IP Office 4.2 - Manual (Page 36)

IP Phone Installation Page 36
15-601046 Issue 14a (23 June 2008) IP Office 4.2
2.7 Phone Security
There are a number of methods by which additional security can be implemented to ensure that an IP phone does not
adopt the identity of another.
· Disable Auto-Create Extension
Following installation, disabling Auto-Create Extn Enabled in the IP Office Manager System | Gatekeeper tab stops
new IP devices from assigning themselves as new extensions.
· Restrict the IP Address or MAC Address
Entering either of these values in the Extension's VoIP tab will restrict usage to that address or device. The MAC
address of an IP phone is printed on a label on the base of the phone.
· Set a User Login Code
If a user Login Code is set, then any other IP device trying to log on as that extension must also enter the correct
login code. If a login code is set, the user can use hot desk to log off and log on elsewhere.
2.8 Listing Registered Phones
Using TFTP, a list can be obtained from the IP Office system of all the registered RAS users which includes H.323 IP
phones. For example:
Extn2602,2602,192.168.42.2,1720
ains600,2600,192.168.42.10,1026
Extn2601,2601,192.168.42.4,1720
New,2702,192.168.42.200,1720
1. In Windows, select Start | Run and enter cmd for the Windows command line interpreter.
2. If necessary, use cd commands to select the directory into which you want the list placed as the current directory.
3. Enter tftp -i xxx.xxx.xxx.xxx get nasystem/h323_ras_list yyyyyyyy.txt where:
· xxx.xxx.xxx.xxx is the IP address of the IP Office unit.
· yyyyyyy.txt is the name of a text file that does not already exist in that directory.
4. The TFTP command will confirm when the file has been successfully transferred.
5. To close the command line interpreter window, type exit.
6. Open the text file using Wordpad or a similar tool.
The IP Office Monitor application (Sysmon) can also show how many phones have registered and how many are currently
waiting to register. The System | Print trace filter option must be selected to see these messages. This appears as lines
of the form:
792ms PRN: GRQ from c0a82c15 --- RAS reaches the maximum capacity of 10; Endpoints registered 41