AASTRA 53i sip ip phone Release Note

RN-001029-00, Rev 01, Release 2.0

11

SIP IP Phone Models 53i, 55i, 57i, 57i CT Release Notes

Use the following procedures to set time zone and daylight savings time on the IP 
phones using the IP Phone UI.

1

Press 

 on the phone to enter the Options List.

2

Select Time and Date.

3

Select option Time Zone.

4

For 53i:
Press * to display a list of Time Zone options.

5

Select a Time Zone from the list of options.
For valid values, see 

“Time Zone Name/Time Zone Code Table” 

on 

 of this release note.

Note: The default Time Zone is US-Eastern.

6

Press Done to save the Time Zone you selected.

7

Press Done again to exit the Options Menu.

1

Press 

 on the phone to enter the Options List.

2

Select Time and Date.

3

Select Daylight Savings.

4

Select a Daylight Savings time from the list of options.
Valid values are:
•

OFF

•

30 min summertime

•

1 hr summertime

•

automatic

Note: The default for Daylight Savings is Automatic. To disable the time zone and DST, set Daylight 
Savings to OFF.

5

Press Done to save the Daylight Savings value you selected.

6

Press Done again to exit the Options Menu.