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Domain Realm
Set the sip domain if needed, otherwise this VoIP
phone will use the Register server address as sip
domain automatically. (Usually it is same with
registered server and proxy server IP address).
Proxy Server
Address
Set proxy server IP address. (Usually, Register SIP
Server configuration is the same as Proxy SIP Server.
But if your VoIP service provider give different
configurations between Register SIP Server and
Proxy SIP Server, you need make different settings)
Proxy Server Port
Set your Proxy SIP server port.
Proxy Account
Name
Input your Proxy SIP server account.
Proxy Password
Input your Proxy SIP server password.
Backup Server
Address
Phone backup server address, if the primary server is
not successfully registered then enabled the backup
server.
Backup Server
port
Configure the backup server port.
Server Name
Set the server name. It is displayed on the dialer
interface.
Advanced SIP Setting
Signal Encryption
Enable/Disable Signal encryption.
Signal Key
Set the key for signal encryption.
RTP Encryption
Enable/Disable RTP encryption.
RTP Encryption
Key
Set the key for RTP encryption.
Enable BLF List
Enable/Disable BLF List.
BLF List Number
Input the BLF List number.
User Agent
Set the user agent if you have, the default is VoIP
Phone 1.0.
Keep Alive Type
Specify the keep alive type, if the type is option, the
phone will send option sip message to server every
NAT Keep Alive Period(s), then the server responses
with 200 to keep alive. If the type is UDP, the phone
will send UDP message to server to keep alive every
NAT Keep Alive Period(s).
Keep Alive Interval
Set examining interval of the server, default is 60
seconds
DTMF Type
Select DTMF sending mode, there are three modes:
* DTMF_RELAY
* DTMF_RFC2833
* DTMF_SIP_INFO.
Different service providers may provide different
Multi-media Video Phone UTT-990 User Manual
