New Password ..........................................................................................................94
Confirm New Password
............................................................................................94
4.4.4 Time Adjust Settings ......................................................................................................95
4.4.4.1 Synchronization ...........................................................................................................95
Server Address .........................................................................................................95
Synchronization Interval ............................................................................................95
4.4.4.2 Time Zone ...................................................................................................................95
Time Zone .................................................................................................................95
4.4.4.3 Daylight Saving Time (Summer Time) .........................................................................96
Enable DST (Enable Summer Time) ........................................................................96
DST Offset (Summer Time Offset) ............................................................................96
4.4.4.4 Start Day and Time of DST (Start Day and Time of Summer Time) ...........................96
Month ........................................................................................................................96
Day of Week .............................................................................................................97
Time ..........................................................................................................................97
4.4.4.5 End Day and Time of DST (End Day and Time of Summer Time) ..............................97
Month ........................................................................................................................97
Day of Week .............................................................................................................98
Time ..........................................................................................................................99
4.4.5 Advanced Settings .........................................................................................................99
4.4.5.1 Soft Key during IDLE Status ........................................................................................99
Soft Key A (Left) ........................................................................................................99
Soft Key B (Center) ...................................................................................................99
Soft Key C (Right) ...................................................................................................100
4.4.5.2 IP Phone ....................................................................................................................100
Enable Admin Ability ...............................................................................................100
Enable IP Phone Lock ............................................................................................100
Password for Unlocking ..........................................................................................100
4.5 VoIP ................................................................................................................................101
4.5.1 SIP Settings ..................................................................................................................101
4.5.1.1 User Agent .................................................................................................................101
User Agent ..............................................................................................................101
4.5.1.2 NAT Identity ...............................................................................................................102
Enable Rport (RFC 3581) .......................................................................................102
Enable Port Punching for SIP .................................................................................102
Enable Port Punching for RTP ................................................................................102
4.5.2 SIP Settings [Line 1] .....................................................................................................103
4.5.2.1 Basic ..........................................................................................................................103
Phone Number ........................................................................................................103
Registrar Server Address ........................................................................................103
Registrar Server Port ..............................................................................................104
Proxy Server Address .............................................................................................104
Proxy Server Port ....................................................................................................104
Presence Server Address .......................................................................................104
Presence Server Port ..............................................................................................104
Outbound Proxy Server Address ............................................................................105
Outbound Proxy Server Port ...................................................................................105
Service Domain .......................................................................................................105
Authentication ID .....................................................................................................105
Authentication Password ........................................................................................105
4.5.2.2 Advanced ...................................................................................................................106
SIP Packet QoS (DSCP) .........................................................................................106
Enable DNS SRV lookup ........................................................................................106
SRV lookup Prefix for UDP .....................................................................................106
SRV lookup Prefix for TCP .....................................................................................107
6 Administrator Guide Document Version 2015-02
Table of Contents