Linksys SPA-2100 User Configuration Manual page 7

STUN Set-up
1. Click on the SIP tab
2. Enter the following:
a. Handle VIA Received:
b. Insert VIA Received:
c. Handle VIA rport:
d. Insert VIA rport:
e. STUN ENABLE:
3. Click on SUBMIT ALL CHANGES
Figure 1.5
Yes
Yes
Yes
Yes
No