Filter
Top Products
Configuring Your System for ITSP Interoperability
Network Address Translation (NAT) and Voice over IP (VoIP)
ATA Administration Guide 49
3
STEP 3 Scroll down to the NAT Support Parameters section, and then enter the following
settings to support static mapping to your public IP address:
• Handle VIA received, Insert VIA received, Substitute VIA Addr: yes
• Handle VIA rport, Insert VIA rport, Send Resp To Src Port: yes
• EXT IP: Enter the public IP address for your router.
Voice tab > SIP: NAT Support Parameters
STEP 4
Click Voice tab > Line
N
, where N represents the line interface number.
STEP 5 Scroll down to the NAT Settings section.
• NAT Mapping Enable: Choose YES.
• NAT Keep Alive Enable: Choose YES (optional).
Voice tab > Line N > NAT Settings
STEP 6
Click Submit All Changes.
NOTE You also need to configure the firewall settings on your router to allow SIP
traffic. See “Firewalls and SIP,” on page 53.