User's Manual

46
Sections Description
SessionTimer Todisplayorconfiguresessiontimersettings.
Active: To enable or disable this feature, If enable, the
ongoing call will be disconnected automatically once
thesessionexpiredunlessitsbeenrefreshedbyUACor
UAS.
SessionExpire:Configuresessionexpiretime.
Session Refresher: To configure who should be
re
sponseforrefreshinga session.
Note: UAC means User Agent Client, here stands for IP
phone. UAS means User Agent Server, here stands for SIP
server.
Encryption ToenableordisabledSRTPfeature.
Voice Encryption(SRTP): If enabled, all audio signal
(technicallyspeakingit sRTPstreams)willbeencrypted
formoresecurity.
NAT TodisplayNATrelatedsettings.
UDPKeepAlivemessage:Ifenabled,IPphonewillsend
UDP keepalive message periodically to router to keep
NATportalive.
UDPAliveMsgInterval:Keepalivemessageinterval.
Rport:RemotePort,ifenabled,itwilladdRemotePort
intooutgoingSIPme
ssagefordesignatedaccount.
Conference ToselectLocalornetworkco nference.
Type:To selectdesiredconferencetype
ConferenceURI:If network conference is selected, a
networkconferenceURIisneededtobeinput.
UserAgent One can customize User Agent field in the SIP message; If
user agent is set to specific value, user could see the
information from PCAP. If user agent is not set by default,
user could see the company name, model number and
firmwareversionfromPCAP