Enable Synchronization by NTP ...............................................................................97
Synchronization Interval
............................................................................................97
4.4.5.2 Time Server .................................................................................................................98
NTP Server Address .................................................................................................98
4.4.5.3 Time Zone ...................................................................................................................98
Time Zone .................................................................................................................98
4.4.5.4 Daylight Saving Time (Summer Time) .........................................................................98
Enable DST (Enable Summer Time) ........................................................................98
DST Offset (Summer Time Offset) ............................................................................98
4.4.5.5 Start Day and Time of DST (Start Day and Time of Summer Time) ...........................99
Month ........................................................................................................................99
Day of Week .............................................................................................................99
Time ........................................................................................................................100
4.4.5.6 End Day and Time of DST (End Day and Time of Summer Time) ............................100
Month ......................................................................................................................100
Day of Week ...........................................................................................................100
Time ........................................................................................................................101
4.5 VoIP ................................................................................................................................101
4.5.1 SIP Settings ..................................................................................................................101
4.5.1.1 SIP Setting .................................................................................................................102
SIP User Agent .......................................................................................................102
4.5.2 SIP Settings [Line 1]–[Line x] .......................................................................................102
4.5.2.1 Phone Number ..........................................................................................................103
Phone Number ........................................................................................................103
SIP URI ...................................................................................................................104
4.5.2.2 SIP Server .................................................................................................................104
Registrar Server Address ........................................................................................104
Registrar Server Port ..............................................................................................104
Proxy Server Address .............................................................................................104
Proxy Server Port ....................................................................................................105
Presence Server Address .......................................................................................105
Presence Server Port ..............................................................................................105
4.5.2.3 Outbound Proxy Server .............................................................................................105
Outbound Proxy Server Address ............................................................................105
Outbound Proxy Server Port ...................................................................................105
4.5.2.4 SIP Service Domain ..................................................................................................106
Service Domain .......................................................................................................106
4.5.2.5 SIP Source Port .........................................................................................................106
Source Port .............................................................................................................106
4.5.2.6 SIP Authentication .....................................................................................................106
Authentication ID .....................................................................................................106
Authentication Password ........................................................................................107
4.5.2.7 DNS ...........................................................................................................................107
Enable DNS SRV lookup ........................................................................................107
SRV lookup Prefix for UDP .....................................................................................107
SRV lookup Prefix for TCP .....................................................................................108
4.5.2.8 Transport Protocol of SIP ..........................................................................................108
Transport Protocol ..................................................................................................108
4.5.2.9 Timer Settings ...........................................................................................................108
T1 Timer ..................................................................................................................108
T2 Timer ..................................................................................................................108
Timer B ...................................................................................................................109
Timer D ...................................................................................................................109
Timer F ....................................................................................................................109
Timer H ...................................................................................................................109
6 Administrator Guide Document Version 2012-02
Table of Contents