V85 Desktop VoIP Phone User Guide 27
YML772 Rev1
SIP Configuration
By clicking on the “SIP” icon on the left banner, the following page will display to allow you to set
all the SIP-related configurations. The following picture shows you an example, in which the V85
use 676485 as its VoIP phone number to register on SIP proxy server at “fwd.pulver.com” and use
STUN to traverse your router NAT/Firewall.
Figure 5-4
SIP Parameters
The following should be read in conjunction with the VoIP (SIP) Configuration table above
and in the Up and Running section of this manual. This section does not repeat what is given
there but provides more detail on additional VoIP/SIP configuration parameters.
Field Description
STUN Stands for Simple Traversal of UDP over NAT. It
is a protocol which enables the V85 to detect the
presence and type of NAT behind which the V85 is
placed. STUN will allow SIP signalling and bi-
directional conversations to successfully traverse a
NAT without requiring any configuration changes
to the NAT. Please ask your VoIP service provider
whether you need to configure STUN in your V85.
STUN Server IP address of STUN Server.
STUN Server Port Port number of the STUN Server.
