Page 84
VoIP gateway IP400 version 5.01
6.3
Static management of VoIP devices
If you are using VoIP devices that don't support dynamic registration using the
RAS protocol, they must be configured statically. As a consequence, the accessi-
bility of the devices no longer has to be constantly checked, and it is not possible
to use changeable IP addresses (i.e. for example with DHCP). There are no other
disadvantages though.
You can configure the VoIP devices separately, or in groups. This can be particu-
larly practical when using a large number of VoIP clients that do not support RAS.
• To define a single VoIP device to be managed statically, in the area
VoIP
Interfaces
under
GW1
to
GW12
set up a definition in
Gateway
mode
Or:
To define a group of VoIP devices that are to be managed statically, set up a
definition in
Gateway group
mode in the
VoIP Interfaces
area under
GW1
to
GW12
. This way you grant access to all VoIP devices on an IP net-
work. Proceed carefully, when setting up such gateway groups, and make
sure that you prevent unwanted access (e.g. those trying to gain access to
your gateway from the Internet).
• For a single VoIP device, enter its address under
IP address
.
Or:
For a group of VoIP devices, enter the address of the IP network, where the
authorised devices are located, under
IP address
. Set the network mask for
the network under
IP mask
.
In this way, you can define the group of authorised VoIP devices as you wish.
It is not necessary, for the configured network to actually be an existing net-
work. You allow access to all VoIP devices by setting the IP address to
0.0.0.0
and the IP mask to
0.0.0.0
.
• Set the H.323 protocol options for the VoIP devices to be managed (see from
page 73).
• If it is necessary to modify call number processing (see 62), then make the
entries, using the
Add CGPN
/
CDPN in
/
out map
button, in the area
Calling
/
Called party num. in
/
out
.
• If the configured VoIP devices are also to have access to your gateway's
ISDN interfaces, define the voice transmission parameters (see from page 76
onwards).