Aastra PHONE 312 User Manual - page 29
51
50
NTP server
: The NTP server can even be set manually when the IP address allocation
“per DHCP” is selected. The NTP server address set manually takes precedence over an NTP server
address received from the DHCP server.
DSCP/ToS
: Here, the value of the Type of Service Byte (RFC 791) can be determined in the IP header.
The value is entered in decimal format. This value is set in all outgoing SIP and voice packages.
Alternatively, you can enter a Differentiated Services Code Point (DSCP, RFC 2474). DiffServ uses the
first 6 bits of the Type of Service Byte.
Since DSCP and ToS use the same byte in the IP header, it only turns out by the utilisation in the net-
work components whether the value will be interpreted as DSCP or ToS.
After the configuration
A newly established profile will automatically be selected as the active profile. If the network is in
reception range, the field strength bars will be shown after a few seconds. If “per DHCP” is selected
for the address allocation in the menu “System > Network > Profiles”, the field strength
bars/“DHCP” will flash alternately.
If the binocular symbol can still be seen, the settings must be checked:
• Is the SSID right? Does the regulatory domain match the channel that the AP is transmitting on?
• Are the safety settings and the key right?
If the “binocular” and field strength bars are changing every few seconds, the network is being lost
again and again:
• Is the destination field strength sufficient?
• Are the safety settings and the key right?
If the field strength bars/“DHCP” are flashing alternately:
• Is a DHCP server active?
• Is “System > Accounts > per DHCP” activated in the menu but the DHCP server is not transferring
any accounts?
Solution
: Supply the DHCP server with accounts or configure the accounts manually.
Changing the profiles
E
Press
.
F
Select
and confirm using
.
F
Select one of the following menu items and confirm with
.
Select one of the following menu items and confirm with
.
Select one of the displayed profiles and press
.
…
The profile that is currently active is marked
with a
.
Select one of the profiles from the list and
confirm using
. The handset will attempt
to register itself in the corresponding WLAN.
…
Select one of the profiles from the list and
confirm using
. Enter the administrator PIN
(“22222” by default). You can edit the entries
for this profile (for details see “New”).
…
Select one of the profiles from the list and
confirm using
. Enter the administrator PIN
(“22222” by default). The profile will be deleted
immediately.
Advice on the DHCP server
It is possible to configure the handset so that in addition to the IP configuration, the telephony
accounts (see chapter “Setting up a SIP server”, page 52) are also transmitted per DHCP. If a DHCP
server only transfers an IP configuration without accounts, the handset will ignore the offer from the
DHCP and wait for one with accounts.
If this is the case, “DHCP” will flash permanently in the top left of the display. Then either the DHCP
server must be configured so that it transfers access data (see chapter “Supported DHCP options”,
page 65), or an access must be configured manually in the handset.
OK
Delete
OK
Edit
OK
✓
Select
Options
Profiles
OK
Network
OK
OK
System
Menu
WLAN: Registering a handset
WLAN: Registering a handset