IP 300 User Manual
“service id”.
Net2phone: Please put the URI of the Net2phone server into “service addr”
The default service port is 6801. Leave “service id” empty. Net2phone usually use the following servers: call1.net2phone.com; call2.net2phone.com;
skip1.net2phone.com; skip2.net2phone.com; skip1.net2phone.net; skip2.net2phone.net.
nat traversal: When the IP phone with private IP address need communicate with other IP phones in a different LAN or on Internet, please select an item from dropdown list to set the proxy used by the phone.
disable: Select this item when the log in server and IP phone in the same LAN, or the log in system supports the IP phone working behind the LAN.
enable: When the system does not support IP phone working behind the LAN, please select this item to search public IP address of the NAT device. With this item selected, “nat addr” field will be activated. Besides, port mapping (port forwarding) needs to be properly set up on NAT device.
citron: With Citron private protocol used, select this item to fit into the GnuGK system transferring the voice and signal by router.
Innopath: Select this item with Innopath private system used.
stun: Select this item with SIP protocol used according to requirement of system. With this item selected, nat addr field is activated.
vida: Select this item with Vida private system used.
aivgr: Select this item with aivgr private system used.
Eproxy: Select this item with eproxry system used.
nat addr: When “nat traversal” is set to “enable”, please put the domain name of the servers ( These web server helps to find out the public IP of the IP phone) into “nat addr”, such as www.whatismyip.com.
When “nat traversal” is set to “stun”, please put the URI of the stun server into “nat addr”, in the format as “domain name/IP address : service port”. The default service port for stun is 3478.
nat ttl: When IP phone sit behind a NAT device, it will send packets to server
23