user manual

Grandstream Networks, Inc. GXP21xx User Manual Page 27 of 41
Firmware version: 1.0.1.66 Last Updated: 05/2011
Advanced User configuration includes not only the end user configuration, but also advanced configuration
such as SIP configuration, Codec selection, NAT Traversal Setting and other miscellaneous configuration.
Table 15: Device Configuration – Settings /Advanced Settings
Admin
Password
Administrator password. Only the administrator can access the “Advanced Settings”
and “Account Settings” page. Password field is purposely blank for security reasons
after clicking update and saved. The maximum password length is 25 characters.
Layer 3 QoS
This field defines the layer 3 QoS parameter. It is the value used for IP Precedence
or Diff-Serv or MPLS. Default value is 12.
Layer 2 QoS
This contains the value used for layer 2 802.1Q/VLAN tag and 802.1p priority value.
Default setting is 0.
Local RTP port
This parameter defines the local RTP-RTCP port pair used to listen and transmit. It
is the base RTP port for channel 0. When configured, channel 0 will use this port
_value for RTP and the port_value+1 for its RTCP; channel 1 will use port_value+2
for RTP and port_value+3 for its RTCP. Local RTP port ranges from 1024 to 65400
and must be even. The default value is 5004.
Use Random Port
This parameter, when set to “Yes”, will force random generation of both the local
SIP and RTP ports. This is usually necessary when multiple GXP
s are behind the
same NAT. Default is “No”.
Keep-alive interval
This parameter specifies how often the GXP21xx sends a blank UDP packet to the
SIP server in order to keep the “hole” on the NAT open. Default is 20 seconds.
Use NAT IP
NAT IP address used in SIP/SDP message. Default is blank.
STUN Server
IP address or Domain name of the STUN server. STUN resolution result will display
in the STATUS page of the Web UI.
Firmware Upgrade and
Provisioning
Allows the user to select the following options for firmware upgrade:
• Always Check for New Firmware
• Check New Firmware only when F/W pre/suffix changes
• Always Skip the Firmware Check.
Firmware upgrade may take up to 10 minutes depending on network environment.
Do not interrupt the firmware upgrading process.
Note: Grandstream strongly recommends that the user upgrade firmware
locally in a LAN environment if using TFTP to upgrade. Please DO NOT
interrupt the upgrade process (especially the power supply) as this will
damage the device.
XML Config File
Password
The password used for encrypting the XML configuration file using OpenSSL. This
is required for the phone to decrypt the encrypted XML configuration file.
HTTP/HTTPS User Name
The user name for the HTTP/HTTPS server.
HTTP/HTTPS Password
The password for the HTTP/HTTPS server.