Configuring Regional Parameters and Supplementary Services
Localizing Your IP Phone
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 190
7
 
To get better detection by the IVR, avoid inband and use OOB. This way, the DTMF 
tone is reconstructed by the PSTN gateway or the remote endpoint, and the 
quality is not subject to distortion from the audio codec. If you use OOB, use a 
slightly longer DTMF Playback Length.
If you use inband, use a higher Inband DTMF boost.
NOTE On the Cisco SPA525G2, when using the Mobile Link line (through the Bluetooth-
enabled mobile phone), the local user can hear a double tone (echo) when pressing 
digits (DTMF tones) while engaged on a call. This can happen with certain mobile 
phones that have the option to play locally the local tone (which is also played by 
the Cisco SPA525G2). This does not affect operation with interactive voice 
response applications, as the tone is audible only on the local device. See the Cisco 
support community at http://www.cisco.com/go/smallbizsupport for phone 
compatibility information, and also consult the latest Cisco SPA525G2 release 
notes, available at cisco.com. 
Localizing Your IP Phone
The following table describes the localization parameters in the 
Miscellaneous
 
section. 
Field Description
Set Local Date 
(mm/dd) 
Enter the local date (
mm
 represents the month and 
dd
 represents 
the day). The year is optional and uses two or four digits. For 
example,
May 1, 2008, can be entered as:
05/01 or 05/01/08 or 05/01/2008
Set Local Time 
(HH/mm) 
Enter the local time (
hh
 represents hours and 
mm
 represents 
minutes). Seconds are optional.
Time Zone  Selects the number of hours to add to GMT to generate the local 
time for caller ID generation. Choices are GMT-12:00, GMT-
11:00,…, GMT, GMT+01:00, GMT+02:00, …, GMT+13:00.
Defaults to GMT-08:00.
Time Offset (HH/
mm)
This specifies the offset from GMT to use for the local system 
time.