Receives faxes ok, but when a voice call comes in a fax tone sounds on on the calling and receiving phone after 3 rings.

Step by step information at the link below.
Brother Fax T96
The F/T Mode is used to allow the fax machine and the telephones to share the same telephone line. When a call comes in, the fax machine and all extension telephones on that line will ring according to the number of rings you have set for the Ring Delay.
When the Ring Delay is completed, the fax machine will answer the call and determine if it is a fax call or a telephone (voice) call.
The fax machine can determine this by the signal it is receiving on the telephone line. If someone is sending a fax automatically , the sending fax machine will transmit a fax tone (a series of beeps every 3 seconds).
If your fax machine hears these tones, it will receive the fax.

If the fax machine does not hear any fax tones, it assumes it is a telephone (voice) call and will begin ringing the F/T ring tones (double ring) for the length of time you selected for the F/T Ring Time. These tones will only ring on the fax machine's handset (extension or external phones will not ring). At the end of the F/T ring time the fax machine will go into the receive mode in order to receive a manual fax.
(If the call was a voice call and was not answered, the caller will hear the fax receive tones also).

• If you answer the call before the fax machine(during the ring delay period) and determine it is a fax, you can transfer the fax to the fax machine for receiving.
  
  
• If you answer the call on an "extension" phone and hear a beep every 3 seconds (automatic fax) or silence (manual fax), press *51 or *91 for New Zealand (remote activation code) on the telephone keypad, wait to hear the fax machine turn on (chirping sounds) and then hang up.
  
  
• If you answer on the handset of the fax machine and hear a beep every 3 seconds or silence, press the Fax Start or Start/Copy key on the control panel of the fax machine and then hang up the handset.
  
  
• If you answer a call on an "extension" phone during the F/T Ring Time, you will hear the F/T ring tones.
  To release the call from the fax machine, press #51 or #91 for New Zealand (remote deactivation code) on the telephone keypad and you can speak to the calling party.
  
  
• If you pick up the handset of the fax machine during the F/T ring time, you may talk to the calling party immediately.

Hi,


Manual mode turns off all automatic answering functions unless you are using the Distinctive Ring feature or you are using an external answering machine on the same line as the Brother machine.


*Distinctive Ring is a function of your Brother machine that allows a person with one line to receive fax and voice calls through two different phone numbers on that one line. Brother uses the term "Distinctive Ring," but telephone companies market the service under a variety of names, such as Custom Ringing, Personalized Ring, Smart Ring, Ring Master, Ident-a-Ring, Ident-a-Call, Data Ident-A-Call, Teen Ring, SimpleBiz Fax & Alternate Number Ringing and BT Call Sign.

1. Setting the Receive Mode
   
   1. Press Menu.
   2. Press the up or down arrow key to select Initial Setup.
   3. Press OK.
   4. Press the up or down arrow key to select Receive Mode.
   5. Press OK.
   6. Press the up or down arrow key to select Manual.
   7. Press OK.
   8. Press Stop/Exit.
   
   

Receiving Faxes in Manual Mode

1. Lift the handset of a telephone that is on the same line as your Brother machine.
2. When you hear the sending machine's fax tones (short beeps that occur at regular intervals), do one of the following:
   • If the telephone you answered is near your Brother machine or connected to its EXT jack(socket), press Black(Mono) Start or Color(Colour) Start.
   • If the telephone you answered is not connected to or near your Brother machine, press *51 (*91 for New Zealand) on its dial pad.
3. Your Brother machine will produce receiving tones.
4. Replace the telephone handset. Your Brother machine will begin to receive the fax.

< Easy Receive (Fax Detect) >
The Easy Receive (Fax Detect) feature allows you to receive faxes in Manual Mode by simply lifting the handset of a telephone that is on the same line as the Brother machine. Your Brother machine will automatically generate fax receiving tones, at which point you can replace the telephone handset and wait for your fax to be received and printed.

Your Brother machine's Easy Receive (Fax Detect) feature is turned ON by default. To adjust your Brother machine's Easy Receive (Fax Detect) setting, please follow these steps:

1. Press Menu.
2. Press the up or down arrow key to select Fax.
3. Press OK.
4. Press the up or down arrow key to select Setup Receive.
5. Press OK.
6. Press the up or down arrow key to select Easy Receive or Fax Detect.
7. Press OK.
8. Press the up or down arrow key to select On, Semi or Off. *In some brother machines, Semi may not be in the options.
   If you choose Semi, your Brother machine will only answer an incoming fax if you answer using its handset or by pressing the Hook, Hook/Hold, Hold, Speaker Phone or Tel/R key on its control panel.
   
9. Press OK.
10. Press Stop/Exit.

Note Here are a couple of points to keep in mind:

• If Easy Receive (Fax Detect) is ON, but your Brother machine doesn't automatically answer the incoming fax when you lift the extension telephone's handset, press *51 (*91 for New Zealand).
• If you send faxes from a computer that is on the same telephone line as the Brother machine and the Brother machine intercepts the calls, turn Easy Receive (Fax Detect) OFF.

Please post your feedback and Vote if the problem resolved as per your satisfaction.

The answer mode determines whether the HP Fax answers incoming calls or not.

Different answer modes are :

* Fax

The HP Fax will automatically answer all incoming calls using the Rings to Answer setting. This is the default setting.

* FaxTel (unit with handset model only)

The HP Fax automatically answers all incoming calls using the Rings to Answer setting. If the call is a fax call, the HP Fax will receive the fax. If the call is a voice call, the HP Fax will create a special ring to indicate it is a voice call. The incoming voice call will need to be answered using the attached handset.

NOTE: If the HP Fax determines the call is a voice call, only the HP Fax will ring with the special ring tone. The other phones on the same phone line will not ring at all. You will not be able to pick up the voice call using the other phones.

* Tel

The HP Fax will not automatically answer calls. Faxes will need to be received manually.

* AnswerMachine

The HP Fax will monitor the line when an incoming call is answered by a person or by the answering machine. If the HP Fax detects fax tones on the line, it will receive the fax.

When the phone rings, pick up the external handset. When you hear the fax tone come over the line press the Start button and hand up the handset.

well, your voicemail can configure to key tone?? or have some one configuring options????

Receive Mode Settings Select from the following receive mode options to suit your needs. Once you've decided on which receive mode to use, follow the below instructions to set the receive mode using the operation panel. Receive Mode Setting

1. Press the <FAX> button to enter Fax mode.
   
2. Press <Menu>.
   
3. Press the right or left arrow button to select [Receive mode settings], then press the <OK> button.
   
4. Press the up or down arrow to select the receive mode that best suits your needs, then press <OK>.
   
   

Types of receive mode
Select the receive mode according to your needs.
Receive mode
Purpose
FAX/TEL AUTO SW When you want to receive faxes automatically as well as voice calls. FAX ONLY MODE When you want to receive only faxes automatically with your machine, or have a dedicated telephone line for FAX use only. DRPD When you have subscribed to a DRPD service with your telephone company. MANUAL MODE When you receive mainly voice calls and sometimes faxes, or want to receive faxes manually. ANS.MACHINE MODE When you want to receive voice messages on your answering machine and receive faxes automatically. FAX/TEL auto switch
FAX :
The machine does not ring but will receive the fax automatically. Voice call :
The phone attached to the machine will ring. Pick up the handset to answer the call. Note:

• Ring start timing and Telephone ring length can be specified in FAX/TEL auto switch in the Receive mode settings.
  
• If you want the telephone to ring when it receives a fax, connect a telephone to your machine and enable the Incoming ring settings in RX settings.
  
• The phone attached to the machine may not ring depending on the telephone type you are using.

FAX only
FAX * :
The telephone does not ring. The machine will receive the fax automatically. Voice call :
You will not be able to answer the call. * If you want the telephone to ring, connect the telephone to your machine and enable the Incoming ring settings in RX settings menu.


DRPD
FAX :
Your telephone line will ring according to the ring pattern you have chosen and receive the fax automatically. Voice call :
Your telephone line will ring according to the ring pattern you have chosen. Pick up the handset to answer the call. Note: Specify the FAX pattern in the DRPD: Set FAX ring pat. in RX settings menu.

Manual RX
FAX :
The telephone attached to the machine will ring. Pick up the handset and if you hear a beep tone, press the <Color> or <Black> button on the machine to receive the fax. Voice call :
The telephone attached to the machine will ring. Pick up the handset to answer the call. Note: If you are far from your machine, you can use the remote receiving function to receive faxes. Pick up the handset of the telephone connected to the machine and press 25 (the remote receiving ID).

Ans. machine connect
FAX :
First the answering machine connected to your machine will respond to an incoming call, and then the machine will receive faxes automatically. Voice call :
The answering machine connected to your machine will respond to an incoming call. Note:

• Set the answering machine to answer on the first or second ring.
  
• The entire message should be no longer than 15
  

Greetings Nana, 
I believe that you can specify how many rings should occur before your Kodak 5500 Ai Printer automatically answers an incoming call (default = 4). 
If you have a dedicated fax line, set the Rings to Answer to 1 or 2.  If you have a shared line for voice/modem and fax, set the Rings to answer to 3, 4, or 5. This setting only applies if Answering Machine Mode is set to OFF.
When the Answering Machine mode is disabled, Rings to Answer applies and your AiO printer answers the call. When your AiO printer detects a fax tone, it receives the fax. When a voice call is received (no fax tone), the call is ignored.
1 Press Menu to display the main menu. 2 Press scroll down until Fax Settings is displayed. 3 Press OK to display the Adjust Fax Settings menu. 4 Press scroll down until Rings to Answer is selected. 5 Press right or left arrow to change the number of rings.
Give it a try, Nana, but let Kodak know if you need additional help. They will be there for you.
Ron Baird the friendly Kodak guy

How to Set the Receive Mode (MF4140/MF4150)
1. Press [Additional Functions]. 2. Use [Left cursor] or [Right cursor] to select [FAX SETTINGS], then press [OK]. 3. Use [Left cursor] or [Right cursor] to select [RX SETTINGS], then press [OK]. 4. Use [Left cursor] or [Right cursor] to select [RX MODE], then press [OK]. 5. Use [Left cursor] or [Right cursor] to select the receive mode, then press [OK]. [FaxOnly]: Answers all calls as faxes and disconnects voice calls. [AnsMode]: Receives faxes automatically and records voice messages. [NET SWITCH]: Distinguishes between fax and voice calls. [FaxTel]: Switches between fax and voice calls automatically. [MANUAL]: Does not answer any calls. You have to manually receive faxes. NOTE: a. For [FaxTel] or [MANUAL], make sure the optional handset or an external telephone is connected to the machine. b. For [AnsMode], make sure an answering machine is connected to the machine. c. The [NET SWITCH] mode is available for certain countries only and requires subscription to a network switch service. 6. Press [Stop/Reset] to return to the standby mode.

• The Rings to Answer feature might not be set to answer after the
appropriate number of rings for your office setup.
• If you have a voice mail service at the same phone number you use
for fax calls, you must receive faxes manually, not automatically. For
information on how to receive faxes manually, see receive a fax
manually from a phone on page 48.
• If you have a PC modem on the same phone line with your
HP Officejet, check to make sure that the modem’s software is not
set to receive faxes automatically. Modems with this auto fax
receive feature turned on will take over the phone line to receive all
incoming faxes, which will prevent the HP Officejet from receiving
fax calls.
• If you have an answering machine on the same phone line with
your HP Officejet, you might have one of the following problems:
– Your outgoing message might be too long or too loud to allow
the HP Officejet to detect fax tones, and the calling fax machine
might disconnect.
– Your answering machine might not have enough quiet time after
your outgoing message to allow the HP Officejet to detect fax
tones. This problem is more common with digital answering
machines.
The following actions might help solve these problems:
a. Disconnect the answering machine and then try receiving a fax.
If faxing is successful without it, the answering machine might
be causing the problem.
b. Reconnect the answering machine and re-record your outgoing
message. Make sure the message is as short as possible (no
more than 10 seconds long), and that you speak softly and
slowly when recording it. Try again to receive a fax.
• If you have a special ring pattern for your fax phone number (using
a distinctive ring service through your telephone company), make
sure that the Answer Ring Pattern feature on your HP Officejet is set
to match. For example, if the phone company has assigned your
fax number a double ring pattern, make sure Double Rings is
selected as the Answer Ring Pattern setting. For information on
changing this setting, see change the answer ring pattern
(distinctive ringing) on page 63.
Note that some ring patterns cannot be recognized by the
HP Officejet, such as those with alternating short and long ringing
patterns. If you are having problems with a ring pattern of this type,
ask your phone company to assign a non-alternating ring pattern.

http://h10032.www1.hp.com/ctg/Manual/c00095626.pdf

Press the 'RECEIVE MODE' button on the right side of the control panel, its next to the large 'FAX START' button. Here are your options :

Select Receive Mode
MANUAL
—You must answer all calls yourself. If you hear fax tones, press
Fax Start
to begin receiving the fax, then hang up. You can use this mode with
Distinctive Ringing. (See
Distinctive Ring
, page 8-1.)
FAX ONLY
—The fax machine automatically answers every call as a fax call. You
cannot receive a voice call, but you can dial out and make a voice call.
FAX/TEL
—The fax machine automatically answers every call. If the call is a fax, it
prints the fax. If the call is not a fax, it signals you with a double-ring (ring-ring),
different from the phone company ringing, to alert you to pick up the call. If you select
this setting, you’ll need to set the Ring Delay and F/T Ring Time features (on the
following pages). If you have extension phones on the same line as the fax machine,
set Ring Delay to 4. (See
For FAX/TEL Mode Only
, page 5-5.)
TAD:ANSWER MACH.
—This is the only setting in which you can use an external
answering machine. Your telephone answering device is connected to your fax
machine, and answers every call. Once the TAD answers, the fax machine listens for
fax tones. If it detects fax tones, it prints the fax.
The TAD setting works
only
with an external telephone answering device (TAD); it
does not work with telephone company Voice Mail. Ring Delay and F/T Ring Time
do
not
work in this setting.