background image

by pushing it in the direction marked “Open” and in-
sert the SIM. Then click the SIM card cover down so 
that it is firmly closed. Now insert the battery (which is 
stored stored separately in the shipping box).  

Replace  the back cover by sliding it gently upwards 
onto the device. Now push the power button on the top 
of the device. The screen will light up and the GSMK 
CryptoPhone G10 begins its firmware initialization. 
This may take up to two minutes.  

Enter your PIN 

Most GSM SIM cards require you to enter a PIN num-
ber. After you have switched on the CryptoPhone, you 
will be asked to enter your PIN. After you entered the 
PIN, press the “Done” button. The CryptoPhone will 
finish initialization and provide the secure telephony 
mode. If your GSM SIM does not require a PIN, the 
secure telephony mode will be enabled right away. We 
recommend that a PIN number is used to enhance 
individual security. 

Charging 

Before using your CryptoPhone, we recommend that 
you charge the battery until full. In order to do this, you 
must connect the power supply to the CryptoPhone. 
Depending on your location, you may need a plug 

CryptoPhone G10 User Manual

4

sive scientific effort (several months of analysis at the 
cost of several 100.000 Euros per device). If in doubt 
and your security depends on it, consider purchasing a 
fresh unit. 

The CryptoPhone is specified and designed for use in 
normal business, home and other general conditions. 
It is not reinforced or specially sealed against water and 
other harsh environmental conditions. (For reinforced 
versions of the CryptoPhone that comply with military 
specifications, contact us at [email protected]). 
Submitting the CryptoPhone to excessively high or low 
temperatures (like in the outside pocket of an overcoat 
in cold climates) might temporarily or permanently 
damage the display and lead to accelerated battery ag-
ing, affecting the ability of the battery to store power 
and thereby reducing the standby time of your Crypto-
Phone. Sitting  on the CryptoPhone or submitting the 
device to other heavy mechanical loads may damage 
parts of the phone, especially the keyboard. Damage to 
the keyboard, battery and display as well as any kind of 
other mechanical damage is not covered by the war-
ranty.

Repairs  

Because of the manipulation risk, we do not take back 
any CryptoPhones from customers, except for repairs. 

CryptoPhone G10 User Manual

25

Summary of Contents for CryptoPhone G10

Page 1: ...anual Contact For support service and repair please contact e mail support cryptophone de phone 49 700 CRYPTTEL fax 49 700 CRYPTFAX Further information http www cryptophone com 2005 Gesellschaft für Sichere Mobile Kommunikation mbH GSMK Berlin Germany CryptoPhone G10 User Manual 28 ...

Page 2: ...o install Microsoft Smartphone compatible 3rd party software on your GSMK Crypto Phone device You should know that 3rd party software of any kind can be used to attack the integrity and secu rity of your GSMK CryptoPhone Installing additional software on Communication Security equipment like the CryptoPhone is a grave security risk that you should only take if it is absolutely necessary Please be ...

Page 3: ... Lift up the SIM card cover CryptoPhone G10 User Manual 3 There is no such thing as a restocked refurbished or second hand CryptoPhone All sales are final If your CryptoPhone is defective we will either repair it or swap the electronics for a new factory fresh device No parts that have been in the hands of other customers will be used in repairs If you need a repair please mail us at service crypt...

Page 4: ... you may need a plug CryptoPhone G10 User Manual 4 sive scientific effort several months of analysis at the cost of several 100 000 Euros per device If in doubt and your security depends on it consider purchasing a fresh unit The CryptoPhone is specified and designed for use in normal business home and other general conditions It is not reinforced or specially sealed against water and other harsh ...

Page 5: ...es Note we recommend to charge your GSMK Crypto Phone every night or have a charged spare battery ready For security reasons explained later in the chap CryptoPhone G10 User Manual 5 immediately as this may be an attempt to insert mali cious firmware into your CryptoPhone Please see our Questions and Answers section Q A on the website http www cryptophone com for further detailed in formation on t...

Page 6: ...select Flight Mode in CryptoPhone G10 User Manual 6 new attack methods Since the CryptoPhone comes with full published source code the chances are much higher for a flaw to be discovered and fixed quickly than with any closed source cryptographic product Our ad visory board of distinguished cryptographers and secu rity researchers help us to identify and counter poten tial threats based on their i...

Page 7: ... the event that the Cryptophone reacts unexpectedly i e device response becomes very slow key lock can not be unlocked or the phone does not connect to a GSM network you can quickly reset it by removing and re inserting the battery The GSMK CryptoPhone will restart without erasing the memory In the unlikely event such a problem persists you can Cold Boot the device see page 16 This will however de...

Page 8: ...g each call By reading and CryptoPhone G10 User Manual 8 CTQ DGA Sync Contacts and Appointments The CryptoPhone supports in principle the sync of con tact and calendar entries with a computer You need to be aware that in theory it might be possible to attack the operating system of the CryptoPhone by supplying manipulated data to your PC or exploiting unknown problems in ActiveSync GSMK does not r...

Page 9: ...etwork The GSM network handles data with lower priority than voice transmissions CryptoPhone G10 User Manual 9 Using the headset For hands free operation a stereo headset is included with the GSMK CryptoPhone You can plug it in any time before or during a call however you may termi nate an ongoing call under some conditions when in serting the headset plug off angle The headset cable connector soc...

Page 10: ... on a satellite network or a network with weird data call configuration CryptoPhone G10 User Manual 10 Security Advice regarding Flash Mem ory With the GSMK CryptoPhone various information is stored in Flash Memory Flash type storage is safe against failure of the backup battery You must how ever be aware that there is no way to securely erase in formation stored in flash memory in a way that it c...

Page 11: ...d for the CryptoPhone The practice is becoming increasingly rare but a GSM provider may only allow incoming data calls to subscribers that have CryptoPhone G10 User Manual 11 sary Cold Boot will not erase the contacts and SMS messages stored on your SIM card Also a Cold Boot does not erase any information that you may have stored in Flash Storage or on SD memory cards To initiate a Cold Boot follo...

Page 12: ...he other party to call you using Crypto Phone These problems are inherent to using the CSD data call facility and apply to all encrypted telephony over GSM CryptoPhone G10 User Manual 12 General Mobile Phone Security Advice The use of mobile phones and other radio transmis sion equipment in certain areas is prohibited or re stricted Because of the risk of interference with life support equipment t...

Page 13: ...rtions and feedback effects that can reduce your call quality considerably CryptoPhone G10 User Manual 13 Note In many countries the use of mobile phones while driving is regulated or completely prohibited You are responsible for complying with local laws and regulations on telephone use while driving a car We strongly recommend the use of the enclosed headset while driving even if local regulatio...

Page 14: ...n using the GSMK CryptoPhone while moving fast in a car or a train you may experience a degrada tion in call sound quality periods of longer delay and short dropouts during a call These effects are the result of a so called handover that occurs when you move from the coverage zone of one GSM tower also called GSM cell to the next During the handover the data connection is briefly interrupted To pr...

Reviews: