Setting Up Internet Telephony (Voip) - Gigaset SX682 WiMAX User Manual

Setting up Internet telephony (VoIP)

Assigning static IP addresses to individual PCs
Even if you have activated the DHCP server, you can still assign a static IP address to indi-
vidual PCs (e.g. when setting up these PCs for NAT functions).
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Enter the MAC address of the PC to which you want to assign a static IP address and
the IP address you wish to assign to the PC.
Ageing time for MAC table
When a PC in the network is accessed, your Gigaset SX682 WiMAX writes the MAC
address and port number in a MAC table to speed up further accesses. The entry in the
MAC table is deleted after a fixed time. If necessary you can change this value via the
MAC table ageing time parameter.
Protection against DoS attacks
DoS (Denial of Service) attacks are attacks on a system in the network to make its serv-
ices unusable. This is basically done by overloading the system by constantly sending
requests. In Bridge mode, the Gigaset SX682 WiMAX provides protection against DoS
attacks, which you can enable or disable via the activate DOS protection parameter.
Setting up Internet telephony (VoIP)
The Gigaset SX682 WiMAX allows you to make phone calls over the Internet with an
analogue telephone. For Internet telephony (VoIP) you need the access authorisation of
your provider and the corresponding access data.
You can connect an analogue telephone, a base for mobile components or a fax
machine to the phone port of your Gigaset SX682 WiMAX.
To be able to make phone calls over the Internet via VoIP, you will need to set up your
VoIP account using the information supplied by your VoIP provider.
If you have executed the Basic Setup Wizard, you will already have entered these details
there. If necessary you can change them here.
For PPPoE Internet connections, do not change the default setting for the
Internet connection mode (= "Always on") if you use VoIP (page 35). You
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can only receive calls via VoIP if this mode is set. Bear in mind, however,
that this setting may incur high connection costs if you have a time-based
tariff with your Internet provider.
You get the access and configuration data for Internet telephony from your provider.
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Open the Advanced Settings tab and select Telephony.
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Enter the access data for your VoIP account that you received from your VoIP pro-
vider. You can normally keep the default settings, unless your provider explicitly
requires other values.
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For detailed information on the telephone functions, see section "Making
a phone call or faxing with the Gigaset SX682 WiMAX" on page 50.
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