Motorola C333 Manual

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Troubleshooting
I cannot hear 
others on my 
phone. While on a call, press the volume 
key on the left side of your phone. 
Your phone display should show 
the volume increasing.
Also, make sure that your phone’s 
earpiece is not blocked by its 
carrying case.
I cannot open 
my inbox. Before you can use text or 
information services messages, 
you must set up the appropriate 
inbox. See page 54.
How do I see 
the calls I sent 
or received?
 To see the most recent calls you 
dialed or received, open the 
“Recent Calls” lists:
M>Recent Calls 
>Received Calls or
Dialed Calls
ProblemSolution 
						

							130
Troubleshooting
My phone will 
not dial 
voicemail 
commands, 
passwords, or 
other codes.
 Your phone sends commands and 
passwords as DTMF tones. You 
can set your phone’s DTMF tones 
to be 
Long, Short, or Off. If you 
have trouble sending numbers, 
check your DTMF setting.
From the idle display, press:
M>Settings >Other Settings 
>
Initial Setup >DTMF 
>
Long or Short
Note: Some analog networks may 
not recognize short tones.
My phone’s 
display is too 
dark. Use the Contrast feature to 
change the level of contrast in 
your display.  See page 43.
You can also use the 
Backlight 
feature to change the length of 
time that the display backlight 
stays on. See page 43.
What can I do 
to extend 
battery life?
 Your battery’s performance is 
affected by charge time, feature 
use, temperature changes, and 
other factors. For tips on 
extending your battery life, see 
page 17.
I can’t find a 
file I 
downloaded.
 When your phone memory is full, 
it writes new downloaded files 
over the old ones. 
ProblemSolution 
						

							131
Troubleshooting
I plugged the 
data cable into 
my phone but 
my phone did 
not beep. How 
do I know if 
the data cable 
is ready to go?
 The beep indicates that you are 
set up correctly. If you did not 
hear a beep, make sure that both 
ends of the data cable are 
connected—the smaller end to 
your phone and the larger end to 
your computer. 
Finally, your computer may have 
deactivated the port to save 
power. Try opening an application 
that uses the port, like a fax or 
dial-up application, and your 
computer will automatically 
activate the port.
My phone 
beeped when I 
attached the 
data cable, but 
my fax and 
data 
applications 
don’t work. Some wireless networks may not 
support data or fax transmission. 
If you are roaming on an 
unfamiliar network, this may be 
the case.
Also, remember that data and fax 
transmission usually requires a 
subscription. Call your service 
provider for more information.
ProblemSolution 
						

							132
Troubleshooting
When sending 
data with the 
data cable, 
why does the 
computer 
show a 
connection 
rate of 19200 
Kbps?
 19200 Kbps is the data transfer 
rate of the connection between 
your computer and the phone in a 
standard CSD (Circuit Switch 
Data) connection. The rate of the 
connection between your phone 
and the network is displayed on 
your phone, and will be either 
14400 or 9600 Kbps.
I can’t end my 
data call by 
closing the 
application on 
my computer. 
What can I do?
 Try pressing 
O on your phone. 
Also try disconnecting the cable or 
turning off the phone. If possible, 
always close the connection 
through your computer. These 
alternative methods may disrupt 
the application on your computer.
I launched the 
micro-browser 
but the display 
says: 
Service Not 
Available
. 
You may be in an area without 
service, or you may be connected 
to a network that does not support 
Internet access.
I launched the 
micro-browser 
but the display 
says: 
Data Server 
Unavailable
. 
Try again in a few minutes. The 
servers may be temporarily busy.
ProblemSolution 
						

							133
Specific Absorption  Rate DataSpecific Absorption Rate Data
This model wireless phone meets the government’s requirements 
for exposure to radio waves. 
Your wireless phone is a radio transmitter and receiver. It is designed and 
manufactured not to exceed limits for exposure to radio frequency (RF) 
energy set by the Federal Communications Commission (FCC) of the U.S. 
Government and by the Canadian regulatory authorities. These limits are 
part of comprehensive guidelines and establish permitted levels of RF 
energy for the general population. The guidelines are based on standards 
that were developed by independent scientific organizations through 
periodic and thorough evaluation of scientific studies. The standards 
include a substantial safety margin designed to assure the safety of all 
persons, regardless of age or health.
The exposure standard for wireless mobile phones employs a unit of 
measurement known as the Specific Absorption Rate, or SAR. The SAR 
limit set by the FCC and by the Canadian regulatory authorities is 1.6 W/
kg.
1 Tests for SAR are conducted using standard operating positions 
accepted by the FCC and by Industry Canada with the phone transmitting 
at its highest certified power level in all tested frequency bands. Although 
the SAR is determined at the highest certified power level, the actual SAR 
level of the phone while operating can be well below the maximum value. 
This is because the phone is designed to operate at multiple power levels 
so as to use only the power required to reach the network. In general, the 
closer you are to a wireless base station, the lower the power output.
Before a phone model is available for sale to the public in the U.S. and 
Canada, it must be tested and certified to the FCC and Industry Canada 
that it does not exceed the limit established by each government for safe 
exposure. The tests are performed in positions and locations (e.g., at the 
ear and worn on the body) reported to the FCC and available for review by 
Industry Canada. The highest SAR value for this model phone when 
tested for use at the ear is 1.33 W/kg, and when worn on the body, as 
described in this user guide, is 0.53 W/kg. (Body-worn measurements  
						

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differ among phone models, depending upon available accessories and 
regulatory requirements).2
While there may be differences between the SAR levels of various phones 
and at various positions, they all meet the governmental requirements for 
safe exposure. Please note that improvements to this product model 
could cause differences in the SAR value for later products; in all cases, 
products are designed to be within the guidelines.
Additional information on Specific Absorption Rates (SAR) can be found 
on the Cellular Telecommunications & Internet Association (CTIA) Web 
site:
http://phonefacts.net 
or the Canadian Wireless Telecommunications Association (CWTA) Web 
site:
http://www.cwta.ca 
1. In the United States and Canada, the SAR limit for mobile phones used by 
the public is 1.6 watts/kg (W/kg) averaged over one gram of tissue. The 
standard incorporates a substantial margin of safety to give additional 
protection for the public and to account for any variations in measurements.
2. The SAR information includes the Motorola testing protocol, assessment 
procedure, and measurement uncertainty range for this product. 
						

							135
The U.S. Food and Drug 
Administrations Center 
for Devices and Radiological 
Health Consumer Update on 
Mobile Phones
Additional Health and  Safety InformationFDA has been receiving inquiries about the safety of mobile phones, 
including cellular phones and PCS phones. The following summarizes 
what is known—and what remains unknown—about whether these 
products can pose a hazard to health, and what can be done to minimize 
any potential risk. This information may be used to respond to questions.
Why the concern?
Mobile phones emit low levels of radio frequency energy (i.e., radio 
frequency radiation) in the microwave range while being used. They also 
emit very low levels of radio frequency energy (RF), considered non-
significant, when in the stand-by mode. It is well known that high levels of 
RF can produce biological damage through heating effects (this is how 
your microwave oven is able to cook food). However, it is not known 
whether, to what extent, or through what mechanism, lower levels of RF 
might cause adverse health effects as well. Although some research has 
been done to address these questions, no clear picture of the biological 
effects of this type of radiation has emerged to date. Thus, the available 
science does not allow us to conclude that mobile phones are absolutely 
safe, or that they are unsafe. However, the available scientific evidence 
does not demonstrate any adverse health effects associated with the use 
of mobile phones.
What kinds of phones are in question?
Questions have been raised about hand-held mobile phones, the kind that 
have a built-in antenna that is positioned close to the users head during 
normal telephone conversation. These types of mobile phones are of  
						

							136
concern because of the short distance between the phones antenna—
the primary source of the RF—and the persons head. The exposure to 
RF from mobile phones in which the antenna is located at greater 
distances from the user (on the outside of a car, for example) is drastically 
lower than that from hand-held phones, because a persons RF exposure 
decreases rapidly with distance from the source. The safety of so-called 
“cordless phones,” which have a base unit connected to the telephone 
wiring in a house and which operate at far lower power levels and 
frequencies, has not been questioned.
How much evidence is there that hand-held 
mobile phones might be harmful?
Briefly, there is not enough evidence to know for sure, either way; 
however, research efforts are on-going. The existing scientific evidence is 
conflicting and many of the studies that have been done to date have 
suffered from flaws in their research methods. Animal experiments 
investigating the effects of RF exposures characteristic of mobile phones 
have yielded conflicting results. A few animal studies, however, have 
suggested that low levels of RF could accelerate the development of 
cancer in laboratory animals. In one study, mice genetically altered to be 
predisposed to developing one type of cancer developed more than twice 
as many such cancers when they were exposed to RF energy compared 
to controls. There is much uncertainty among scientists about whether 
results obtained from animal studies apply to the use of mobile phones. 
First, it is uncertain how to apply the results obtained in rats and mice to 
humans. Second, many of the studies that showed increased tumor 
development used animals that had already been treated with cancer-
causing chemicals, and other studies exposed the animals to the RF 
virtually continuously—up to 22 hours per day.
For the past five years in the United States, the mobile phone industry has 
supported research into the safety of mobile phones. This research has 
resulted in two findings in particular that merit additional study:
1In a hospital-based, case-control study, researchers looked for an 
association between mobile phone use and either glioma (a type of  
						

							137
brain cancer) or acoustic neuroma (a benign tumor of the nerve 
sheath). No statistically significant association was found between 
mobile phone use and acoustic neuroma. There was also no 
association between mobile phone use and gliomas when all types of 
types of gliomas were considered together. It should be noted that 
the average length of mobile phone exposure in this study was less 
than three years.
When 20 types of glioma were considered separately, however, an 
association was found between mobile phone use and one rare type 
of glioma, neuroepithelliomatous tumors. It is possible with multiple 
comparisons of the same sample that this association occurred by 
chance. Moreover, the risk did not increase with how often the mobile 
phone was used, or the length of the calls. In fact, the risk actually 
decreased with cumulative hours of mobile phone use. Most cancer 
causing agents increase risk with increased exposure. An ongoing 
study of brain cancers by the National Cancer Institute is expected to 
bear on the accuracy and repeatability of these results.
1
2Researchers conducted a large battery of laboratory tests to assess 
the effects of exposure to mobile phone RF on genetic material. 
These included tests for several kinds of abnormalities, including 
mutations, chromosomal aberrations, DNA strand breaks, and 
structural changes in the genetic material of blood cells called 
lymphocytes. None of the tests showed any effect of the RF except 
for the micronucleus assay, which detects structural effects on the 
genetic material. The cells in this assay showed changes after 
exposure to simulated cell phone radiation, but only after 24 hours of 
exposure. It is possible that exposing the test cells to radiation for this 
long resulted in heating. Since this assay is known to be sensitive to 
heating, heat alone could have caused the abnormalities to occur. 
The data already in the literature on the response of the micronucleus 
assay to RF are conflicting. Thus, follow-up research is necessary.
2
FDA is currently working with government, industry, and academic groups 
to ensure the proper follow-up to these industry-funded research findings. 
Collaboration with the Cellular Telecommunications Industry Association  
						

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(CTIA) in particular is expected to lead to FDA providing research 
recommendations and scientific oversight of new CTIA-funded research 
based on such recommendations.
Two other studies of interest have been reported recently in the literature:
1Two groups of 18 people were exposed to simulated mobile phone 
signals under laboratory conditions while they performed cognitive 
function tests. There were no changes in the subjects ability to recall 
words, numbers, or pictures, or in their spatial memory, but they were 
able to make choices more quickly in one visual test when they were 
exposed to simulated mobile phone signals. This was the only 
change noted among more than 20 variables compared.
3
2In a study of 209 brain tumor cases and 425 matched controls, there 
was no increased risk of brain tumors associated with mobile phone 
use. When tumors did exist in certain locations, however, they were 
more likely to be on the side of the head where the mobile phone was 
used.
Because this occurred in only a small number of cases, the increased 
likelihood was too small to be statistically significant.
4
In summary, we do not have enough information at this point to assure the 
public that there are, or are not, any low incident health problems 
associated with use of mobile phones. FDA continues to work with all 
parties, including other federal agencies and industry, to assure that 
research is undertaken to provide the necessary answers to the 
outstanding questions about the safety of mobile phones.
What is known about cases of human cancer 
that have been reported in users of hand-held 
mobile phones?
Some people who have used mobile phones have been diagnosed with 
brain cancer. But it is important to understand that this type of cancer also 
occurs among people who have not used mobile phones. In fact, brain 
cancer occurs in the U.S. population at a rate of about 6 new cases per