User manual

8820IP Phone User Manual_ SIP (V1.44)

set sipproxy XXXX

Set IP address or domain name of SIP Proxy Server.

set domain/realm XXXXX

Set the domain name of SIP proxy server.

set nattraversal X

X ranged from 0 through 2: 0: do not use NAT traversal. When the

supports the IP phone working behind the LAN; 1: Use NAT

traversal. When the login system does not support IP phone

working behind the LAN, With this item selected, please make port

mapping on NAT device; 2: stun.

set nataddr XXXXX

When “nattraversal” is set to “1”;set IP address of NAT device wan

port or URI of free assistant service (Such as www.showmyip.com

etc.) in Internet.

When “nattraversal” is set to “2”, set IP address or URI of the stun

server, in the format as “domain name/IP address : service port”.

The default service port for stun is 3478.

NOTE The free service list of Internet：www.ip-calculator.com; www.ipchicken.com;