AASTRA phone 312 사용자 설명서

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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.
WLAN: Registering a handset