D-Link DWR-980 User Manual page 277

DWR-980 Wireless AC1200 4G LTE Router
with VDSL2 Support, Gigabit Ethernet Ports,
2 FXS Ports, and USB Port
User Manual
Parameter
Support rport
SIP transport protocol
Save log to a USB
storage
Path
File name
Mode
Server address
Public address
Move the switch to the right to enable the Symmetric Response
Routing function in accordance with RFC3581. This function allows
sending responses to a request to the port and IP address from which
the request was received via the NAT-enabled router. The SIP proxy
server must support the function.
Transport protocol that will be used to transfer SIP packets. Select
the needed value from the drop-down list.
Record to USB
Move the switch to the right to save the call log to a USB storage
connected to the router. Upon that the Path and File name fields
are displayed on the page.
Click the Search icon (
to locate the folder where call log files will be stored.
A name for call log files.
NAT Traversal
The NAT Traversal function allows VoIP traffic to pass through the
NAT-enabled router.
Select the Disabled value to disable the function.
Select the STUN value to enable the STUN client (Session
Traversal Utilities for NAT). The STUN client sends requests to a
STUN server. On the basis of the received replies, the client allows
VoIP traffic to pass through the NAT-enabled router. When this
value is selected, the Server address, Port, and Binding period
fields are displayed.
Select the NAT Public IP value to manually specify a public
("white") IP address of an upper-level router which exchanges
service messages with the SIP proxy server. When this value is
selected, the Public address and Port fields are displayed.
An IP or URL address of a STUN server to which a connection is
established.
A public ("white") IP address of an upper-level router which
exchanges service messages with the SIP proxy server.
Page 277 of 372
Configuring via Web-based Interface
Description
) located to the right of the field in order