Protect the FRITZ!Fon from direct sunlight. • Note for Hearing Aid Users If you wear a hearing aid, FRITZ!Fon can cause unpleasant noises. These are caused by radio signals coupled into the hearing aid. Prerequisites for Operating FRITZ!Fon You need a DECT base station that is connected with a tele- •...
FRITZ!Fon C4 at a Glance FRITZ!Fon C4 at a Glance FRITZ!Fon C4 is a cordless telephone with which you can make tele- phone calls on the Internet and the fixed-line network. FRITZ!Fon was developed especially for the FRITZ!Box, but can be used with other DECT base stations.
Getting to Know the FRITZ!Fon Getting to Know the FRITZ!Fon Speaker (speaker for hands-free calling on the reverse) Control ring Display Volume Call list Telephone book internal calls Port for headset Navigate and headphone Menu key Display key Display key...
Icons on the Display Symbol Meaning Symbol Meaning Establishing connection Call in HD Connection established “DECT Eco” function en- abled in the FRITZ!Box Connection cleared Deletes the last entry Incoming call Missed calls, new messag- es or firmware update avail- able...
Starting Operation of the FRITZ!Fon Starting Operation of the FRITZ!Fon Inserting the Battery Place a coin in the slot at the bottom of FRITZ!Fon. Rotate the coin until the battery cap pops open and take off the battery cap. Insert the battery. The conductors of the battery must be in contact with the conductors in the housing.
Register your FRITZ!Fon with your FRITZ!Box or another DECT base sta- tion. Registering with the Base Station To switch on FRITZ!Fon, press and hold down the hang up but- The display shows “Press and hold down DECT button on the base station!”.
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FRITZ!Fon registering with the base station. Registering at Multiple Base Stations You can register FRITZ!Fon at up to four base stations, and change the active base station quickly as needed. Here is how to register FRITZ!Fon with the second, third or fourth base...
Select a base station and press “OK”. FRITZ!Fon connects to the base station. Deregistering from a Base Station If you no longer use one of the base stations, deregister FRITZ!Fon from that base station. Press the menu key Select “Settings / OK / Registration / OK / Deregister / OK”.
Navigating in the Menus Navigating in the Menus The functions of FRITZ!Fon are operated using a menu, which has a main menu and several submenus. With the control ring and the left display key you can navigate up, down and back through the menus.
Telephone book Dialing Numbers Enter a telephone number. Press the call key Accepting a Call To pick up a call, press one of the following buttons: • call key display key “Pick Up” • • hands-free calling key FRITZ!Fon C4...
Press the bottom of the control ring to turn down the volume. Disabling Do Not Disturb You can switch off the ring tone. The display of FRITZ!Fon continues to indicate incoming calls. Switching Off the Ring Tone To switch off the ring tone, press the key until the symbol “Do...
Press the display key “Loud” to switch the microphone back on. Locking Keys If you lock the keys of your FRITZ!Fon, you can only call emergency numbers. You can still pick up incoming calls. When the keylock is enabled, you must press and hold down the hang up button to end a call.
If you have mislaid your FRITZ!Fon, you can have it ring: Press the “DECT” or the “Find” button on your base station. FRITZ!Fon rings. To stop the ringing, press any key on the FRITZ!Fon or the “DECT” or “Find” button on the base station. FRITZ!Fon C4...
Microphone impedance: 800 ohms – 2.2 kOhm 3.5 mm jack, assignment (stereo / mono): • Right Left Microphone Ground audio signal audio signal Microphone Ground Audio signal Connecting a Headset Connect the headset to the headset socket. The headset is now ready for operation. FRITZ!Fon C4...
Telephone numbers are assigned to your FRITZ!Fon in the DECT base station. Assigning Telephone Numbers in the FRITZ!Box If your FRITZ!Fon is registered to a FRITZ!Box, assign the numbers as follows: Open the user interface of the FRITZ!Box in a web browser (http://fritz.box).
FRITZ!Fon in the FRITZ!Box will be used. Prerequisites This is how FRITZ!Fon must be set up in the FRITZ!Box user interface: For incoming calls the option “React only to the following num- • bers” must be enabled.
Using the Telephone Book and Call Lists Using the Telephone Book and Call Lists If you use a FRITZ!Box that supports DECT as a base station, you can use the telephone book and the call lists of the FRITZ!Box on the FRITZ!Fon.
Calling a Telephone Number from the Telephone Book Selecting a Telephone Book in FRITZ!Fon If you have set up multiple telephone books in your FRITZ!Box, you can select a telephone book on the FRITZ!Fon. Press the bottom of the control ring The telephone book is opened.
Press the bottom of the control ring to open the telephone book. Press the key and select a call list. Press the call key to open the redial list. Select an entry. Press the display key “Options”. FRITZ!Fon C4...
The marking in the telephone book jumps to this letter. For more on entering letters, see the section Writing Text from page Press the call key Press “OK” and select “Dial”. Select a telephone number and press the call key The call will be connected. FRITZ!Fon C4...
“J”, “K”, or “L”. Without the simplified telephone book search you have to press twice for “K” and three times for “L”. Open the user interface of the FRITZ!Box in a web browser (http://fritz.box). Select “Telephony / Telephony Devices”.
Select “New Entry / OK”. Enter a name. Select “Home”, “Office” or “Mobile”. Press the display key “Paste”. The telephone number from the call list is added. Press the display key “Save”. The new telephone book entry is saved. FRITZ!Fon C4...
The call will be connected. Answering Machine If you use a FRITZ!Box that supports DECT as a base station, you can configure an answering machine for FRITZ!Fon in the FRITZ!Box. If you have multiple FRITZ!Fon cordless telephones, you can set up a separate answering machine for each FRITZ!Fon.
Answering Machine Setting Up an Answering Machine in FRITZ!Box Open the user interface of the FRITZ!Box in a web browser (http://fritz.box). Select “Telephony / Answering Machine”. Click the link “Another answering machine”. Specify the mode, greeting delay and recording length. In the “Greeting only”...
“OK”. Select “Activate / OK / Private greeting / OK”. To set up an end greeting in the “With recording” operating mode, press the “Back” display key. To return to the start screen, press the hang up key FRITZ!Fon C4...
Answering Machine Playing Back Messages When new messages are waiting, the messages key on FRITZ!Fon flashes red. To play back all new messages, press and hold down the answering machine key To select a message, press the messages key . The most recent message is at the top of the list.
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Press the left of the control ring Select an answering machine. Press the call key You will enter the voice menu of the answering machine. For an overview of the voice menu, see the manual of your FRITZ!Box. FRITZ!Fon C4...
Press the hang up menu key Your telephone number will be suppressed for the next outgoing call. If you would like to suppress your number permanently, enable CLIR in the FRITZ!Box user interface. For more information, read Settings in the FRITZ!Box User Interface on page...
Once the second call is connected, you can alternate: Press the display key “Options” and select “Alternate / OK”. You are connected to the first party again. Using “Options / Alternate / OK” you can alternate between the two calls as often as you like. FRITZ!Fon C4...
Press the left of the control ring , select a telephone and press “OK”. Once the second call has been connected, press the “Options” key on the display. Select “Conference / OK”. The three-party conference is set up. FRITZ!Fon C4...
• an answering machine set up in the FRITZ!Box Configuring Call Diversion in the FRITZ!Box Open the user interface of the FRITZ!Box in a web browser (http://fritz.box). Select “Telephony / Call Handling / Call Diversion”. Click “New Call Diversion” and set up a new call diversion.
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Configuring Call Diversion Switching Call Diversion On and Off A call diversion setting configured for FRITZ!Fon can be switched on and off on the FRITZ!Fon. Press the menu key Select “Supplementary services / OK / Call diversion / OK”. Select a call diversion setting.
Switching the Alarm On and Off Switching the Alarm On and Off If your FRITZ!Fon is registered with a FRITZ!Box, you can configure up to three different alarms. Setting Up the Alarm Press the menu key Select “Supplementary services / OK / Alarm / OK”.
Press the menu key Select “Supplementary services / OK / Alarm / OK”. Select an alarm. Press the display key “Options”. Select “Alarm on / OK” or “Alarm off / OK”. The alarm is turned on or off. FRITZ!Fon C4...
Configuring the Baby Monitor Configuring the Baby Monitor If your FRITZ!Fon is registered with a FRITZ!Box, you can configure the FRITZ!Fon as a baby monitor. FRITZ!Fon will then call a specified telephone number whenever the ambient noise reaches a defined level.
Receiving and Sending E-mail With FRITZ!Fon you can receive and send e-mail when your computer is switched off. In the FRITZ!Box you can set up up to ten e-mail ac- counts for this purpose. If you have more than one FRITZ!Fon cordless telephones you can use different e-mail accounts on the different cordless telephones.
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With the “OK” key you can page forward and skip to the next e-mail. Rotate Display With the key you can rotate the display: Press once to rotate the display by 90°. Press twice to rotate the display by 270°. Press three times to reset the display. FRITZ!Fon C4...
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Select a recipient from the telephone book and press “OK”. Select “Send to mailing list” and enter one or more e-mail ad- dresses. Press the display key and select “Send / OK”. Use a comma to separate the individual addresses. The e-mail message will be sent. FRITZ!Fon C4...
Receiving RSS Feeds Receiving RSS Feeds You can read RSS feeds with FRITZ!Fon. RSS is a format for rendering headlines and what are usually short items on certain subjects. These could be, for instance, the latest headlines or information about changes on the provider’s website.
With FRITZ!Fon you can listen to podcasts. Addresses of podcasts are listed, for instance, at www.ipodder.org/directory/4/podcasts. Setting Up a Podcast Configure the podcasts you would like to listen to with FRITZ!Fon in the FRITZ!Box: Open the user interface of the FRITZ!Box in a web browser (http://fritz.box).
Listening to Web Radio With FRITZ!Fon you can listen to web radio (also called “Internet ra- dio”). Many web radio station addresses are available, for instance, at www.onlineradiostations.com and www.shoutcast.com.
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Listening to Web Radio Setting Up a Web Radio Station Configure the radio stations you would like to listen to with FRITZ!Fon in the FRITZ!Box: Open the user interface of the FRITZ!Box in a web browser (http://fritz.box). Select “Home Network / Media Server / Web Radio”.
If different kinds of messages have arrived, for instance “Missed calls” and “E-mail”, select one kind of message and press “OK”. Select a message and then press “OK”. New messages are black; messages that have already been read are gray. The message appears on the display. FRITZ!Fon C4...
Assigning a Background Image If you selected the “Background image” start screen, you can assign a picture: Open the user interface of the FRITZ!Box in a web browser (http://fritz.box). Select “DECT / Cordless Telephones”. Open the settings of your FRITZ!Fon and switch to the “Tele- phony Device Features”...
Press the display key “Continue”. Navigate to the desired menu item. Press the display key If no star is displayed over the display key on the right, the menu item is already a favorite or cannot be defined as a favor- ite. FRITZ!Fon C4...
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Press on the top or the bottom of the control ring un- til the favorite has the desired position in the list. Deleting Favorites Press the display key “Favorites”. Select a favorite. Press the display key “Options”. Select “Delete / OK”. FRITZ!Fon C4...
Settings in the FRITZ!Fon Menu 11.3 Settings in the FRITZ!Fon Menu Audio Settings The “Settings / Audio” menu contains the following settings: Volume: volume of the ring tone, the handset and the speaker • during hands-free calling The volume of the handset and the speaker can be set during a call;...
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DECT repeater that does not support any en- crypted connections. Resetting You can restore FRITZ!Fon to its factory settings. Settings you have configured will be discarded. Press the menu key Select “Settings / OK / Reset / OK / OK”.
Settings in the FRITZ!Box User Interface 11.4 Settings in the FRITZ!Box User Interface If you use a FRITZ!Box that supports DECT as a base station, you can configure your FRITZ!Fon in the user interface of the FRITZ!Box. All current functions and settings are at your disposal if both devices are using the current firmware.
DECT Eco: Switching Off Radio When Idle • Ring tones: You can assign various ring tones to your FRITZ!Fon and add an MP3 file as a ring tone of your own. • Do Not Disturb: You can define periods of time when FRITZ!Fon does not ring.
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Enable the “DECT Eco” option and define when DECT Eco should be active. Click the “Apply” button to save the settings. Register your FRITZ!Fon and all of the cordless telephones on the FRITZ!Box again. DECT Eco is enabled. FRITZ!Fon C4...
AVM provides firmware updates for FRITZ!Fon. A firmware update brings the functions of your FRITZ!Fon up to date. 12.1 Preparation: Checking the FRITZ!Box Firmware FRITZ!Fon must be registered with a FRITZ!Box with the latest firm- ware. Check the FRITZ!Box firmware: Press the menu key Select “Home Network / OK / FRITZ!Box version / OK”.
Operating Devices in the Home Network 13 Operating Devices in the Home Network If you use a FRITZ!Box that supports DECT as a base station, you can use FRITZ!Fon to operate other devices in the home network. 13.1 Switching the FRITZ!Box Wireless Network On and The WLAN function of your FRITZ!Box can be switched on and off using the FRITZ!Fon.
With FRITZ!Fon you can play music stored on the FRITZ!Box or another media server in the home network. You can use your FRITZ!Fon as a playback device or use FRITZ!Fon to remote control music playback on other UPnP-compatible devices in the home network.
Writing Text 14 Writing Text This chapter describes how to enter text on the FRITZ!Fon. Entering Numerals, Letters and Text To enter a letter, a numeral, or a character, press the corresponding key. The keys 0 – 9, the * key and the # key are assigned to the following...
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To move a line upward, press the top of the control ring To move a line downward, press the bottom of the control ring Deleting Text To delete text to the left of the cursor, press the display key FRITZ!Fon C4...
Ambient conditions: Operating temperature: 0 °C – 3 °C, stor- age temperature: -20 °C – 45 °C, relative humidity: 5% – 95%, no condensation • DECT Eco: with suitable DECT base station, DECT transmission can be switched off on standby • Conforms to CE standards FRITZ!Fon C4...
If you cannot send us any support request by e-mail you can also reach our Support desk by fax. Customers from Germany 030 390 04 390 Customers from Austria 0043 1 267 56 02 Customers from Switzerland 0041 44 242 86 04 FRITZ!Fon C4...
If we reject a warranty claim, this claim lapses no later than six months after being rejected by us. This warranty shall be governed by German substantive law, to the exclusion of the United Nations Convention on Contracts for the Inter- national Sale of Goods (CISG). FRITZ!Fon C4...
AVM. This includes product names and logos in particular. Microsoft, Windows and the Windows lo- go are trademarks owned by Microsoft Corporation in the USA and/or other countries. Bluetooth is a trademark of Bluetooth SIG Inc. licensed to AVM GmbH. All other products and company names are trademarks of their respective owners. FRITZ!Fon C4...
Declaration of CE Conformity Declaration of CE Conformity AVM declares herewith that the device is compliant with the basic re- quirements and the relevant rules in directives 2014/53/EU, 2009/125/EC and 2011/65/EU. The declaration of CE conformity is available at en.avm.de/ce. FRITZ!Fon C4...
Disposal Information In accordance with European regulations, the FRITZ!Fon C4, as well as all devices and electronic components contained in the package, may not be disposed with household waste. After use, please dispose of FRITZ!Fon C4 and all electronic compo-...
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