Akuvox R26C - Voice Encryption (SRTP); NAT Traversal Settings; User Agent Customization

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whenthereisanincomingcallfordesignatedaccount.
 Ringtones:Choosetheringtoneforeachaccount.
 Provisioning Response ACK: 100% reliability for all
provisionalmessages, this meansit willsend ACK every
time the  IP phone  receives a provisional SIP message
fromSIPserver.
 User=phone: If enabled,IP
 phonewill send user=phone
withinSIPmessage.
 PTime: Interval time between two consecutive RTP
pack ets.
 Anonymous Call: If enabled, all outgoing call for the
designatedaccountwillbeanonymousnumber.
 Anonymous Call Rejection: If enabled, all incoming
anonymous‐out call for the designated account will be
rejected.
 Is escape non Ascii character:To transfer the symbol to
Asciicharacter.
 MissedCallLog:Todisplaythemisscalllog.
 PreventSIPHacking:EnabletopreventSIPfromhacking.
SessionTimer Todisplayorconfiguresessiontimersettings.
 Active: To enable or disable this feature, If enable, the
on going call will be dis connected automatically once
thesessionexpiredunlessit ’sbeenrefreshedbyUACor
UAS.
 SessionExpire:Configuresessionexpiretime.
 SessionRefresher:Toconfigure
whoshouldberesponse
forrefreshingasession.
Note: UAC means User Agent Client, here stands for IP
phone. UAS means User Agent Server, here stands for SIP
server.
BLFList TodisplayorconfigureBLFListURIaddress.
 BLFListURI:BLFListisshortforBusyLampFieldList.
 BLFListPickUpCode:TosettheBLFpickupcode.
 BLFListBargeInCode:TosettheBLFbargeincode.
Encryption ToenableordisabledSRTPfeature.
 Voice Encryption(SRTP): If enabled, all audio signal
(technicallyspeakingit ’sRTP streams)willbe encrypted
formoresecurity.
NAT TodisplayNAT‐relatedsettings.
 UDP KeepAlivemessage:If enabled, IPphone will send
UDP keep‐alive message periodically to router to keep
NATportalive.
 UDPAliveMsgInterval:Keepalivemessageinterval.
 Rport: Remote Port, if enabled, it will add Remote Port