Grandstream Networks GXV34 0 Series

DNS Refresh Time
(m)
Configures the refresh time (in minutes) for DNS query. If set to “0”, the phone will use DNS query
TTL resolving from DNS server response.
DNS Failure Cache
Duration (m)
Configures the duration (in minutes) of previous DNS cache when DNS query fails. If set to “0”, the
feature will be disabled. Note: Only valid for SIP registration.
Preferred DNS 1 Defines the preferred DNS server for the user.
Preferred DNS 2
IPV6 Preferred DNS
Server
Defines the second DNS server for the user.
Specifies the IPv6 preferred DNS server.
Enable LLDP
Enables the LLDP (Link Layer Discovery Protocol) feature on the phone system. If it is set to “Yes”,
the phone system will broadcast LLDP PDU to advertise its identity and capabilities and receive
same from a physical adjacent layer 2 peer.
The default setting is “Yes”.
LLDP TX Interval (s)
Configures the interval the phone sends LLLD-MED packet.
The default setting is 30s.
Enable CDP
Configures whether to enable CDP to receive and/or transmit information from/to CDP-enabled
devices.
The default setting is “Yes”.
Layer 3 QoS for SIP
Defines the Layer 3 packet’s QoS parameter for SIP messages in decimal pattern. This value is used
for IP Precedence, Diff-Serv or MPLS.
The default setting is 26 it is equivalent to the DSCP name constant AF31.
Layer 3 QoS for
Audio
Defines the Layer 3 packet’s QoS parameter for RTP messages in decimal pattern. This value is used
for IP Precedence, Diff-Serv or MPLS.
The default setting is 46 it is equivalent to the DSCP name constant EF.
Layer 3 QoS for
Video
Defines the Layer 3 packet’s QoS parameters for H.264 messages in decimal pattern. This value is
used for IP Precedence, Diff-Serv or MPLS.
The default setting is 34 it is equivalent to the DSCP name constant AF41.
HTTP/HTTPS User-
Agent
Sets the user-agent for phonebook and screen saver.
SIP User-Agent
Maximum
Transmission Unit
(MTU)
Sets the user-agent for SIP. Default is “Grandstream GXV34x0 $version”“$version” is replaced by
actual firmware version.
Configures the MTU in bytes. Please set MTU reasonably according to your needs.
Note: If MTU is set to less than 1280, IPv6 may not take effect.
PC Port Mode
PC Port Mode
Enables and defines the PC port mode. If it is set to “Mirrored”, the traffic in the LAN port will go
through PC port as well and packets can be captured by connecting a PC to the PC port. A reboot is
required to take effect.
The default setting is “Enabled”.
PC Port VLAN Tag
Defines the VLAN Identifier of the Layer 2 frame for PC port. This adds the VLAN tag value on the
target address received from the LAN port of the phone then sends the value to the device
connected to the PC port.
Note: VLAN tag value on the device connected to the PC port should be the same as the VLAN tag
value assigned to the PC port here.
PC Port Priority
Value
Determines the Priority Code Point within a Layer 2 frame header for PC port.
Proxy