User`s guide

10. DPH-80 H.323 Protocol
10.1. IP Phone Configuration
10.1.1. Infrastructure Requirements
This section describes the infrastructure requirements for proper functioning of the D-
Link (or any) H.323 phone.
• Though the DPH-80 H.323 phones work in any type of LAN network, a
100mbps, switched network is more suitable for providing good quality voice
communications.
• H.323 phones need a Gate Keeper (GK) to provide the directory function
required to make calls. DPH-80 H.323 phones register the assigned phone
number with the server on power-up. However, D-Link H.323 phones can
work through the phone book without H.323 GK.
• H.323 phones need a set of IP parameters for proper functioning like an IP
address, IP mask, gateway address, and DNS server address. These
parameters can be configured either statically through a browser or
dynamically through DHCP. A DHCP server in the local LAN is required to
provide these parameters.
• The DPH-80 H.323 phone has many configurable parameters. These
parameters can be configured through any Java-enabled Internet browser
(like Netscape 6.2 or above, IE 5.0 or above).
• If your LAN network has a firewall and NAT, they should support H.323 for
making and receiving calls from outside your LAN network.
• A TFTP server is required if you want to support remote software upgrading.
The TFTP server should have the two software image files (dph80hi1.tfp and
dph80hi2.tfp) from D-Link in the current directory of the TFTP server selected
by ‘set path’.
10.2. Configuring the H.323 phone
Once you have the above infrastructure in place, you can power up the H.323 phone.
Since the phone has not been configured properly, it will play an error tone. However,
the H.323 phone is accessible through an Internet browser for configuration.
The H.323 phone IP address is required to access the phone through a browser. The
H.323 phone uses factory default values before configuration and the default IP address
is 10.1.1.80 (net mask 255.0.0.0). The user can enter an IP address immediately after
factory reset as per the format *x*y*z*a*#, where the symbols * and # are mandatory.
The following parameters should be configured for proper functioning of the H.323
phone. Other parameters can use default values.
• Phone number (it should be a unique number in H.323 Gate Keeper)
• H.323 Gate Keeper (GK) IP address and port number
• DHCP enable
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