VoIP gateway IP400 version 5.01
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Expansion to Multilink
You can accept a
multilink
connection via two bundled channels instead of a con-
nection via a single B channel.
• Check the
Multilink
box.
• Leave the
Dial remote number
and
Local subscriber number
fields
empty in the
Numbers for 2nd Multilink channel
area. Your gateway will
accept calls for both channels on the same number, configured in the
Sub-
scriber number
field.
4.2.4 Settings for incoming and outgoing ISDN PPP dial-up
connections
You can also configure a PPP interface for incoming and outgoing calls. To do this,
combine the previously described settings for incoming and outgoing calls.
4.2.5 Special features of WAN connections via Ethernet
(PPPoE)
Using PPPoE over WAN connections, for example with a DSL modem, is very
straightforward. Note however, that only outgoing calls are possible in this oper-
ating mode.
The PPPoE connection, for example the DSL modem, must be connected to the
same Ethernet segment (or switch) as the gateway.
PPPoE connections are basically dial-up connections, just like ISDN connections.
However, a number of providers offer
Flat Rates
with charges which are inde-
pendent of the call duration. In such cases, it is possible and also makes sense to
keep the PPPoE connection open permanently.
Network address translation (NAT) is not required if the connection is operated
with unofficial, but known, IP addresses. To deactivate NAT, set the option
Exclude from NAT
. NAT only needs to be active on networks requiring official
IP addresses.
• Check the
Automatic dial after boot
box, if you want to keep the PPPoE
connection permanently open. Otherwise, or if you are uncertain about the
incidental costs, remove this check.
• Uncheck the
Multilink
box.
• Uncheck the
Permanent connection
box.
• Select the
PPPOE
setting from the
Port
field.
• The
Channel
field is only significant for permanent ISDN connections and