Denwa Communications DW-820 User Manual page 26

Configuration parameters are described as follows:
Parameter
Register Name
User Name
Password
Display Name
Reg Server IP
Reg Server Port
Proxy Server IP
Proxy Server Port
Backup Proxy IP
Backup Proxy Port
After all the parameters are configured, Click "save" button to save the
configurations, then the sip account is added successfully. Then active the account.
Specification
SIP Accout ID provided by ISP
SIP User Name provided by ISP
SIP Password provided by ISP
SIP Display name
SIP Register Server, format: domain/IP, for example:
194.168.1.2
The default port is 5060.
SIP Proxy Server, format: domain/IP, for example:
194.168.1.2
The default port is 5060.
SIP Backup Proxy Server, format: domain/IP,for example:
194.168.1.2
The default port is 5060.