Installation guide

TD 92408EN
9 December 2011 / Ver. G
System Planning
Ascom VoWiFi System
32
10.7.2 Recommended Security Settings
VoWiFi Handset
Authentication
method
Encryption method Description
WPA2-PSK AES-CCMP Medium roaming performance
Medium security level
PEAP-MSCHAP v.2
a
AES-CCMP Medium roaming performance
b
High security level
EAP-FAST AES-CCMP Medium roaming performance
b
High security level
EAP-TLS AES-CCMP
Medium roaming performance
b
Very high security level
Note: For more information, see System Description, Ascom VoWiFi System, TD 92313EN.
Transmitting
power
Set to ma
tch desired
cell size.
If the output power is reduced make sure the
APs and clients are configured to use the same
output power to avoid asymmetric
communication link budgets. Refer to 10.6
Transmission Power on pag
e 30.
Ra
dio channel UNII-1, UNII-3 Non-DFS, UNII-3 (only FCC)
UNII-2/UNII-2e are DFS channels which can be
used, but t
he Voice quality may be distorted.
Regulatory domain
(802.11d)
En
abled It is important to enter the country code for the
regulatory domain.
Beacon period 100 ms
a
Higher value will increase battery life and
decrease throughput. Lower value will decrease
battery life and increase throughput.
DTIM interval 5 DTIM setting is related to the beacon interval.
The value of 5 is recommended when t
he
beacon interval is 100ms.
Antenna diversity Enable Disabled antenna diversity may introduce RF
shadow
s at certain spots.
a. The format of this parameter may differ depending on AP manufacturer, see Ascom Interoperability
Reports.
a. The server-certificate is verified by the VoWiFi Handset.
b. If proactive key caching (Opportunistic key caching) or Pre-Authentication with PMKS
A caching is en-
abled on the WLAN infrastructure.
a/n
Item Recommended
Settings
Description