IP Extensions in AltiWare OE 4.0, © Copyright 2000, AltiGen Communications, Inc Page 8/11
• In the Service=>Administration=>System menu, set E164 Address to your extension
number.
• In the Service=>Administration=>Speech menu, set Jitter buffer to Normal
• In the Service=>Administration=>Speech menu, set Audio mode to G723 Preferred
• In the Service=>Administration=>Date/Time menu, set SNTP IP addr to the IP address
of a public domain SNTP (Simple Network Time Protocol) server (e.g. 209.81.9.7) and
set the Timezone offset to the appropriate value for your location. This will ensure that the
time displayed on the phone is accurate.
H.323 GateKeeper
If the LP5100 is not used with an H.323 GateKeeper, to make a call from the phone, you first
need to dial the AltiServ’s IP address, get the system dial tone, and then dial the number you want
to call. The phone will also flash the text ‘No System’ on the screen if the GateKeeper is not
installed on the network.
To eliminate this flashing message and to make it easier to make calls, an H.323 GateKeeper is
shipped with AltiWare OE 4.0. If this gatekeeper is installed on your network (you can install it
on the AltiServ system itself), the LP5100 will detect it automatically and you can directly dial
the number you want to call.
If the phone is at a remote location and it does not detect your gatekeeper automatically, you can
enter the IP address of the server on which you have installed the gatekeeper in the following
field:
Service=>Administration=>System=>Gatekeepers=>Gatekeeper 1
If the phone has successfully registered with the gatekeeper, you will see the extension number
(the E164 address) displayed on the phone’s screen.
Installing H.323 GateKeeper
The following requirements must be met for the AltiGateKeeper module to function properly:
• Windows NT 4.0 Server with Service Pack 6a or Windows 2000 Server
• Minimum 128MB memory
• Network connectivity with TCP/IP
• AltiServ system with OE 4.0 or higher software
To install GateKeeper software, run the SETUP.EXE file in the AltiGateKeeper folder in the OE
4.0 CD. During the installation, please enter the IP address of the AltiServ system when you are
prompted to do so. There is no other configuration setting for this software module.
If you have a firewall on your network, and some Siemens LP5100 phones are connecting to the
gatekeeper from outside the firewall, you will need to open the following ports in order for the
phones to be able to register with the gatekeeper:
• 1718 (TCP & UDP)
• 1719 (TCP & UDP)
In case you are not able to open up the ports for some reason, then you can install the
AltiGateKeeper software in a server at the remote site. For example, if the remote user is working
from a branch office, you can install AltiGateKeeper in an NT / Windows 2000 server at the
(97 pages)
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