Enterprise IP Phone Using the Advanced Phone FunctionsUsing the Advanced Phone FunctionsAccount SettingPlease refer to the previous part “Configuration and Registration” for the basic Accountsetting information. The following table lists the instruction of the field about theadvanced Account Setting.Field Name DescriptionUDP Keep-aliveMessageDefines whether to active the phone UDP Keep-alivemechanism. The default is Enabled.UDP Keep-aliveIntervalThis parameter specifies how often the phone will send a packetto the SIP server. Default is 30 seconds.Login Expire This parameter specifies the time frequency that phonerefreshes its registration. The default interval is 3600 seconds.Local SIP Port Local SIP port. The default value is 5060.Local RTP Port Defines the local RTP port that the phone will listen andtransmit. The default value is 11780.RPort The parameter allows you configuring the proxy to sendresponses back to a particular address and port. The default isdisabled.SIP Session Timer This document defines an extension to the Session InitiationProtocol (SIP). This extension allows for a periodic refresh ofSIP sessions through a re-INVITE or UPDATE request. Therefresh allows both user agents and proxies to determine if theSIP session is still active.SubscribePeriodThis parameter could set the period of the subscription. Thedefault value is 3600.DTMF Type Select the DTMF type.You can only configure these settings via Web interface.1) Choose Account.2) Select the desired account.3) Choose Advanced to do the relating settings.You can consult your system administrator for more information.- 31 -