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Matrix SPARSH VP710 User Guide 63
Basic Network Settings
In order to get your IP phones running, you must do the basic network configuration, such as IP address and
subnet mask, gateway. This section describes how to configure the basic network parameters for IP phones. The
IP phone can support either or both IPv4 and IPv6 addresses.
DHCP
DHCP (Dynamic Host Configuration Protocol) is a network protocol used to dynamically allocate network
parameters to network hosts. The automatic allocation of network parameters to hosts eases the administrative
burden of maintaining an IP network. IP phones comply with the DHCP specifications documented in RFC 2131. If
using DHCP, IP phones connected to the network become operational without having to be manually assigned IP
addresses and additional network parameters. Static DNS address (es) can be configured and used when DHCP is
enabled.
DHCP Option
DHCP provides a framework for passing information to TCP/IP network devices. Network and other control
information are carried in tagged data items that are stored in the options field of the DHCP message. The data
items themselves are also called options.
DHCP can be initiated by simply connecting the IP phone with the network. IP phones broadcast DISCOVER
messages to request the network information carried in DHCP options, and the DHCP server responds with
specific values in corresponding options.
The following table lists common DHCP options supported by IP phones.
Parameter DHCP Option Description
Subnet Mask 1 Specify the client’s subnet mask.
Time Offset 2
Specify the offset of the client's subnet in seconds from
Coordinated Universal Time (UTC).
Router 3 Specify a list of IP addresses for routers on the client’s subnet.
Time Server 4 Specify a list of time servers available to the client.
Domain Name Server 6 Specify a list of domain name servers available to the client.
Log Server 7 Specify a list of MIT-LCS UDP servers available to the client.