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Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
Chapter 5 Configuring the Cisco IP Phone Models 7905G and 7912G Using the Phone Menus
Network Configuration Menu
NTP Server 1,
NTP Server 2
IP addresses of the Primary
Network Time Protocol (NTP)
server (NTP Server 1) and
secondary NTP server (NTP Server
2) used by the phone.
1. Unlock configuration parameters.
2. Set the Alternate NTP parameter to Yes.
3. Scroll to the NTP Server 1 parameter or
the NTP Server 2 parameter, press the
Edit softkey, and then enter a new NTP
server IP address.
4. Press the Validate softkey, and then press
the Save softkey.
Time Zone Offset to apply to the Greenwich
Mean Time (GMT) returned by an
NTP server to determine local time
(to use for Call ID display, for
example).
Local time is generated as follows:
• Local time =
GMT + Time Zone,
if Time Zone <= 12.
• Local time =
GMT + Time Zone – 25,
if Time Zone > 12.
For example, Time Zone = 17 for
Pacific Standard Time.
Note You must update this
parameter manually when
daylight savings time goes
into effect and ends.
1. Unlock configuration parameters.
2. Scroll to the Time Zone parameter, press
the Edit softkey, and then enter a new
time zone offset value.
3. Press the Validate softkey, and then press
the Save softkey.
Table 5-1 Network Configuration Menu Parameters (continued)
Parameter Description To Change