Nat Traversal Settings - D-Link DPH-128MS User Manual

Section  - Installation
When the VoIP phone is set behind a NAT router, you will need the
NAT Traversal function to send and receive the network packets (e.g.
RTP packets) properly. The VoIP phone supports STUN, UPnP and
a non-standard method called "Manual Config External IP/Port" to
assist the phone in NAT Traversal.
• STUN Server Setting
STUN:
Enable or disable the STUN function.
STUN Domain Name/
Enter the host name or IP address of the STUN server.
IP Address:
• Manual Config External IP/Port
User Defined
It is a non-standard method that can help you to configure
External IP/Port:
the phone with the following items to traverse NAT
properly.
External IP Address:
Select one from the three options to obtain the external IP address.
External SIP Port:
Manual Set: If the NAT router is allocated with a fixed IP address, we suggest that you can select this option and
enter the unchangeable IP address in the blank.
Use STUN to Get External IP Address: Obtain the external IP address through the STUN procedure. Please enter
the IP address of STUN server in STUN Domain Name/IP Address in advance.
Use UPnP to Get External IP Address: Obtain the external IP address through the UPnP procedure.
External Media Port:
Enter the external port that is reserved for the SIP signaling.
VLAN ID:
Enter the external port that is reserved for the RTP transmission.
D-Link DPH-18MS User Manual

NAT Traversal Settings

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