User's Manual

108
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Sections Description
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SIPServer1 TodisplayandconfigurePrimarySIPserversettings.
z ServerIP:SIPserveraddress,itcouldbeanURLorIP
address.
z Registration Period: The registration will expire after
Registration period, the IP phone will reregister
automaticallywithinregistrationperiod.
SIPServer2 TodisplayandconfigureSecondarySIPserversettings.
This is for redundancy, if registering to Primary SIP server
fails, the IP phone will go to Secondary SIP server for
registering.
Note:SecondarySIPserverisusedforredundancy,itcanbe
left blank if there is not
redundancy SIP server in user’s
environment. 
OutboundProxyServer TodisplayandconfigureOutboundProxyserversettings.
An outbound proxy server is used to receive all initiating
request messages and route them to the designated SIP
server. 
Note: If configured, all SIP request messages from the IP
phonewillbesenttotheoutboundproxyserverforcefully.
TransportType TodisplayandconfigureTransporttypeforSIPmessage
z UDP: UDP is an unreliable but very efficient transport
layerprotocol.
z TCP:Reliablebutlessefficienttransportlayerprotocol.