Adding the original IP address and port to the SIP message header after NAT

Adding the original IP address and port to the SIP message header after NAT In some cases your SIP configuration may require that the original IP address and port from the SIP contact request is kept after NAT. For example, the original SIP contact request could include the following: Contact: <sip:0150302438@172.20.120.110:5060>; After the packet goes […]

Configuring SIP IP address conservation for the SIP session helper

Configuring SIP IP address conservation for the SIP session helper You can use the following command to enable or disable SIP IP address conservation for the SIP session helper. IP address conservation is enabled by default for the SIP session helper. config system settings set sip-nat-trace disable end If the SIP message does not include […]