Musicam FieldFone II User manual

FieldFone II
Users Guide

MUSICAM USA
FieldFone II Users Guide
For Revision 2.1 Software
MUSICAM USA
Corporate Computer Systems, Inc.
670 North Beers Street • Building 4
Holmdel, NJ 07733 USA
Phone (732) 739-5600 • Fax (732) 739-1818
http://www.musicamusa.com
Second Printing, August, 1997

Table of Contents
Introduction 3
Key Features 3
Unpacking and Installing 5
Front Panel Connectors and Controls6
Rear Panel Controls and Connectors 7
Using FieldFone II 8
Audio I/O and Level Adjustments 8
Phone Line Connection 9
Configuration and Programming 10
Menu Navigation using the
Keypad and Display 10
Function Keys 11
Keypad Beeper 11
FieldFone II Configuration 11
Using Automatic Bit Rate
Selection 11
Setting Loopback State 13
Adjusting LCD Display
Contrast 14
Setting Modem Time-Out 15
Answer Ring Number 15
Auto Re-dial 15
‘AT’ Commands 15
User Profile 16
Manual Dialing 16
Programming and Using the
Speed Dial Directory 17
Dialing Using Telephone Set 17
Credit Card Calls 18
Resetting Defaults 18
Using the Relay Outputs 19
Software Upgrades 19
Appendix A — Menu Tree 21
Appendix B - Specifications 22
Appendix C — Rear Panel Pin Outs 23

FIELDFONE II USERS GUIDE
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our new FieldFone IIaudio codec from MUSICAM
USA offers the best possible bi-directional audio
quality over a single analog phone line. Under ideal
conditions, FieldFone II can achieve a frequency
response from 20 Hz to 10.2 kHz, with a signal-to-noise ratio
approaching 84 dB.
FieldFone II is ideal for use where ISDN (high quality digital)
lines are not available or practical. Because the electrical
characteristics of an ordinary telephone line can vary widely,
FieldFone II negotiates the best possible connection it can
make at the time you dial. The better your phone line, the
better FieldFone II will sound. In all but the worst cases,
FieldFone II will yield a substantial improvement over
ordinary phone line audio. In addition, FieldFone II provides
the same audio quality in both directions simultaneously, and
controls four separate relay contact closures when connected
to a StudioFone or another FieldFone II at the far end.
FieldFone II is ideal for on-site news reporting, remote
interviewing, sporting event coverage, and other similar
voice applications. FieldFone II can even provide acceptable
results for music applications that do not require the full
fidelity of an MPEG ISDN codec. If your intended
application is to send a disk jockey to the local club to do a
high fidelity stereo broadcast, you should consider an ISDN
codec instead of FieldFone II. MUSICAM USA offers an
impressive array of ISDN codecs, including the new
Preface
p
Y

FIELDFONE II USERS GUIDE
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CDQPrima™ Series, RoadRunner and Olympian. Please
contact us for full information.
Your FieldFone II uses state-of-the-art modem technology,
with automatic line condition analysis and rate adaptation.
The FieldFone II error detection and correction software
insures that the best possible connection is maintained.
MUSICAM USA, however, cannot guarantee the quality of
the phone service available in your area. We have made
every attempt to insure that your FieldFone II will connect at
the highest possible bit rate to yield the best audio possible.
Even if a connection cannot be made at the maximum
possible bit rate, you can be assured that the audio FieldFone
II delivers is the best achievable at the connection rate. With
less-than-ideal connections, FieldFone II still provides superb
audio performance and still meets the signal-to-noise
performance of an ideal connection.

FIELDFONE II USERS GUIDE
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Introduction
ieldFone IIoffers high quality, full duplex remote audio feeds
using a single analog telephone line, thus eliminating the need for
multiple phone lines or special ISDN lines. FieldFone II is a self-
contained unit that requires no special interfaces for audio input
or output. Connection to the telephone network is also simple using the
supplied cable. Your FieldFone II has been designed to connect to
another FieldFone II or to any other MUSICAM USA POTS codec, such
as FieldFone, or to the rack mountable StudioFone. FieldFone II is
ideally suited for temporary field applications as well as repetitive
operation from fixed sites and enables you to file fast-breaking reports,
interviews, cover live events, etc.
Key Features
he FieldFone II is a complete package, housed in a rugged case,
complete with fold-away handle. The complete FieldFone II
package weighs under 4.3 kg (9.5 pounds). Included inside this
case is a state-of-the-art 33.6 kb/s modem with auto-answer, auto
redial, auto data rate fallback, continuous line condition monitoring,
and built-in telephone speed dialer. In addition, the FieldFone II has a
telephone directory capable of storing 256 40—digit telephone numbers.
Connection to the telephone network is through a built-in industry-
standard RJ-11 jack.
FieldFone II uses state-of-the-art compression technology to provide
high quality full duplex audio feeds from any location with an
available analog dial-up phone line. Bandwidth selection is automatic
and based on connect rate. The only user adjustments are input and
output levels. In addition, MUSICAM USA’ s unique Sound-Shaper™
circuitry gives you the ability to tailor FieldFone II‘s compression
characteristics to your application. FieldFone II‘s FLASH-ROM based
processor allows for field upgrades should new or improved control
software or coding algorithms be developed.
Full duplex communications can be assured under varying line
conditions with the use of several MUSICAM USA innovations. In
addition to normal operation at 33.6 kb/s, the FieldFone II can operate
at lower baud rates with the same outstanding signal-to-noise ratio, but
F
T

FIELDFONE II USERS GUIDE
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with lower frequency response, if phone line conditions make it
necessary. The FieldFone II also contains a real-time line condition
monitor and display feature.
FieldFone II is easy to use. The FieldFone II front panel controls have
been kept to a minimum, are simple to use, and are clearly labeled. The
front panel controls include mixing to three inputs (two microphone
and one switchable mic/line) and individual local and return level
adjustments for two headphone outputs.
All audio connections are made through industry standard connectors,
logically located on the front and rear panels. Two balanced XLR
microphone inputs are located on the front panel, as are two standard
¼” headphone jacks. An additional balanced input, switchable
between microphone and line levels, is located on the rear panel. Also
on the rear panel is an XLR balanced line level output and two ¼”
unbalanced local and return audio outputs, ideal for PA feeds,
recording, etc.
Two standard RJ-11 connectors on the rear are for telephone line and an
external telephone set, if desired. The four relay outputs are accessed
through a DB-25 connector, and a DB-9 connector is provided for
remote control and software maintenance. Connectors for AC power
(100-240 VAC 50/60 Hz) and 12 VDC power are also located on the rear
panel, as is the power switch and fuse.
Front panel indicators include Power, On line, Norm (signal level) and
Clip (over level). There are also four LEDs indicating the state of the
internal relays. The front panel keypad can be used to access all
functions of the FieldFone II and built in modem, and is also used as
the telephone dial keypad. If connected to another FieldFone II or
StudioFone, the FieldFone II’s keypad can also activate the four CUE
relays on the remote device. A FieldFone can activate the relays in
your FieldFone II. A back-lit display provides line quality monitoring,
menu, maintenance and dialing displays.
Since FieldFone II features and audio quality are implemented in
software, rather than hardware, the FieldFone II can be upgraded in
the field as coding technology matures. In addition to local upgrade
capability, we can now provide software upgrades directly over the
telephone line. This prevents your FieldFone II from becoming
obsolete.

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Unpacking and Installing
our FieldFone II comes with an AC line cord and a telephone
cord. The only available options are a lightweight, yet rugged
carrying case with ample room for accessories. Unpack your
FieldFone II and plug it in to an appropriate power source.
Please note that the FieldFone II has a “World” AC power supply, and
can be used anywhere without changing settings. FieldFone II can
operate in any position, and may be stacked or shelf mounted if
desired. Please note that FieldFone II is fan cooled, and that the fan
should not be blocked.
Only standard, non-conditioned phone lines should be used. Phone
lines that run through a PBX or CENTREX system should also be
avoided since some systems employ line equalization. In addition, we
recommend that shared lines be avoided, since another device going
off-hook while a connection is established will terminate the FieldFone
II connection. If the line used has call-waiting or any other line
interrupting service, these features must be disabled.
Plug one end of the provided telephone line cord into the rear
connector on the FieldFone II, and the other end into an available
telephone line. If the provided phone cord is not long enough, or does
not match your telephone wall jack, standard extensions, longer cords
or adapters can be purchased almost anywhere. You do not need a
telephone or dialer on the line since the FieldFone II has an internal
dialer. You can, however, plug a standard telephone set into the
provided jack on the rear panel. Your FieldFone II is now ready for
use.
Y
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Front Panel Connectors and Controls
1MICROPHONE INPUTS Two balanced microphone inputs
2MICROPHONE INPUT LEVEL
CONTROLS Adjusts level and mix for two microphone
inputs
3HEADPHONE 1 LEVEL CONTROLS Adjusts send & return levels for headphone
1
4HEADPHONE 2 LEVEL CONTROLS Adjusts send & return levels for headphone
2
5BACK-LIT LCD DISPLAY Displays all control functions and modes of
the FieldFone II
6INPUT 3 LEVEL ADJUST Adjusts level of mic/line input 3
7HEADPHONE 1 OUTPUT 1/4” Headphone output 1
8HEADPHONE 2 OUTPUT 1/4” Headphone output 2
9RELAY STATUS INDICATORS LED relay and cue status indicators
10 STATUS INDICATORS LED FieldFone II status indicators
11 NAVIGATION KEYS Menu navigation keypad
12 ALPHANUMERIC KEYPAD Configuration and dialing keypad
13 DIAL KEYS Controls all dialing functions and directory
maintenance
14 FUNCTION KEYS Controls state of far-end relays

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Rear Panel Controls and Connectors
1 WALL JACK RJ-11 Jack for phone line connection
2PHONE JACK RJ-11 Jack for external telephone
3LINE OUTPUT Balanced, fixed line level output
4INPUT 3Microphone or line input 3
5INPUT SELECTOR Microphone or line level select for input 3
6UNBALANCED RETURN
AUDIO OUTPUT Unbalanced line level return audio output
7UNBALANCED LOCAL AUDIO
OUTPUT Unbalanced line level local audio output
8RS232 CONTROL DB-9 connector for remote control and software
upgrades
9OPTO INPUTS/RELAY
OUTPUTS DB-25 connector for contact closure I/O
10 FAN Cooling fan for reliable operation
11 DC POWER INPUT Input for optional DC power
12 POWER CONNECTOR Mains power connector
13 POWER SWITCH Power switch

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Using FieldFone II
fter applying power to the FieldFone II, a boot sequence
executes for approximately 30 seconds. This boot sequence
initializes the modem, digital signal processors, and control
processor. After the boot sequence completes, the LCD display
should look like:
The ON LINE lamp should come on
during the boot sequences, but should
extinguish upon completion. If the
ON LINE lamp stays on after the boot
sequence completes, re-boot the unit by turning the power off and on
again.
Audio I/O and Level Adjustments
You can connect a professional quality, low impedance microphone
directly to either XLR microphone input on the front panel. A
microphone can also be connected to the mic/line input on the rear
panel, setting the level switch accordingly. High impedance
microphones, or microphones with other than XLR connectors must use
an external matching transformer or adapter. Phantom power is not
provided. Balanced monaural line level audio is input through the XLR
Input 3 connector on the rear panel, setting the level switch accordingly.
Mic/Line mixing is accomplished using the three input level controls
located on the front panel. Adjust the levels so that the green ‘NORM’
indicator illuminates when audio is present, and the red ‘CLIP’
indicator does not. It is recommended, but not necessary, to turn the
level control down if an input is not connected. If the red ‘CLIP’ light
illuminates, the audio will be distorted.
Two sets of headphones with ¼” jacks can be used without adapters.
When stereo headphones are used, the output will be monaural, to both
ears. Do not use monaural headphones with 2-conductor plugs. The
audio source to the headphones, local or return audio, can be adjusted
using the two level controls located above each headphone output.
Monaural, unbalanced line level output to external mixing, recording,
or amplifying equipment is available through two ¼” connectors on the
rear panel, one for local audio and one for return audio. Balanced line
A

FIELDFONE II USERS GUIDE
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level return audio is also located on the rear panel. All output levels
are fixed at 0 dBu relative to nominal input levles.
Using the Sound Shaper Feature
At the high levels of bit rate reduction used to send quality audio over
ordinary phone lines, it is sometimes useful to adjust the audio
bandwidth and encoder bit allocation for the type of audio program
being transmitted. FieldFone II’s unique Sound Shaper feature gives
you the ability to optimize the sound of the FieldFone II for your most
frequently used type of audio. We have shipped your FieldFone II
preset for most audio formats; however, we encourage you to
experiment with the Sound-Shaper setting. To access the Sound Shaper
settings, use the command sequence:
<Operation><Snd Shaper>
and select one of the five factory settings.
Phone Line Connection
Connection to the phone line is made through a standard RJ-11
connector on the rear panel. Only the two center connectors (tip/ring,
or red/green) are active, therefore either two or four wire modular
phone cables can be used. These cables are available virtually
anywhere in a variety of lengths. A standard telephone set can also be
connected to the rear panel for normal phone conversations over the
same line when the FieldFone II is not being used. Do not use
conditioned or equalized lines, and avoid using lines that are shared
with other devices or that run through a PBX or CENTREX system.

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Configuration and Programming
Menu Navigation using the Keypad and Display
All FieldFone II functions can be
accessed using the soft-touch keypad
and LCD display.
The following discussion of menu
navigation is based on the basic
keypad and display as shown in
this figure. The top line of the
display is for information and
prompts. The bottom line is for
menu choice selection and
information entry.
To use the keypad and display, press the arrow keys to move the cursor
(the [ ] brackets) to the desired menu selection, and then press the
ENTER key to execute the selection or move down to the next menu
level. Pressing the é(up arrow) at any time brings you up one
menu level. At any given time, only a limited number of selections
may be visible on the display. By using the çand è(left and
right) arrow keys, the display can be scrolled to show all possible
options and selections.
The alphanumeric portion of the keypad is used for entering
information and for dialing. Each of the 12 keys associated with the
alphanumeric portion of the keypad represent up to four different
characters. Different characters are selected by multiple presses on the
same key. Please note, the QZ1 key is also used as the space key. The
left and right arrow keys are used in conjunction with the alphanumeric
keys to move the cursor to the desired position. After the desired
character string has been formed, pressing the ENTER key executes or
enters the string.
In the discussions that follow, the printed sequence
<X><Y><Z> will be used as shorthand to mean: Use the
arrow keys to move the cursor to ‘X’ and press ENTER , then
use the arrow keys to scroll to ‘Y’ and press ENTER , finally,
scroll to ‘Z’ and press ENTER .
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FIELDFONE II USERS GUIDE
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The ‘DIAL’ column of keys are used to enter and execute dialing
functions, such as direct dialing, speed dialing, directory maintenance
and call termination.
Function Keys
Pressing the keys marked F1, F2, F3 or F4 will cause the corresponding
relays to close in the far end FieldFone II or StudioFone. Pressing and
releasing the keys quickly will close the relay for about ½ second. Pressing
and holding the key will cause the far end relay to close until the key is
released.
Keypad Beeper
FieldFone II incorporates a beeper that will beep each time a key is
pressed. In some applications, it may be desirable to turn the beeper
off. This is done using the keypad sequence:
<Setup><Beep>.
FieldFone II Configuration
Refer to Appendix A for a diagram of the FieldFone II menu tree
showing all commands required for operation.
The FieldFone II, as shipped from the factory, will attempt to connect
at 33.6 kb/s operation. A connection at 33.6 kb/s is preferable, as this
allows FieldFone II to deliver the widest possible frequency response.
Unfortunately, “clean” POTS lines are not a certainty, and FieldFone II
will “fall back” to lower bit rates when less-than-ideal lines are
encountered. We have found that special ‘conditioned’ lines do not
provide any advantage, and in some instances, result in poorer connect
rates. Please note that when connecting to a FieldFone or early model
StudioFone, the maximum possible connect rate is 28.8 kb/s.
Using Automatic Bit Rate Selection
The FieldFone II automatic bit rate selection feature assures the best
possible connection under any line condition. By setting the bit rate to
’33.6’, the FieldFone II will always try to establish the best connection
possible, at bit rates of 33.6, 31.2, 28.8, 26.4, 24.0, 21.6, 19.2, 16.8 and 14.4
kb/s, in this order. You can set the maximum bit rate to try using the
command sequence:
<Operation><Bit Rate>.
Selecting a maximum bit rate lower than 33.6 kb/s will yield faster call
setup times in areas where the telephone system does not support these

FIELDFONE II USERS GUIDE
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high bit rates. In areas where high bit rate connections can be
established but cannot be supported over long periods of time, select a
lower bit rate before re-dialing.
The threshold at which the modem will automatically consider a
connection acceptable is user definable. If a small amount of line errors
can be tolerated, you can have the FieldFone II accept this noisier line.
This can yield wider bandwidths at the expense of possible line errors
(audio drop-outs). The rate threshold setting uses the command
sequence:
<Operation><Modem Control><Rate Thrshld>
where the choices are HIGH or LOW
Setting the rate threshold to HIGH will allow less errors in the
connection, resulting in a lower bit rate connection. The factory default
setting is ‘LOW’, but should be changed when an occasional repeated
frame cannot be tolerated.
In some cases, the line condition may deteriorate after an acceptable
connection is established, or there may be random error bursts that may
affect audio quality. FieldFone II provides
a real time line condition monitor (shown
here) to display the current condition of the
line in use.
The line condition is continually displayed as a horizontal bar, where
the length of the bar indicates the line condition. The longer the bar,
the better the line. The number to the right of the bar indicates the
number of frames with CRC errors per second. The top line of the
display shows the connect bit rate and the connection time. This
display appears as a default display after any connection is established.
Pressing the up arrow cancels the line condition display and returns
you to the menu display. To return to this display at any time, use the
keypad sequence:
<Status>
If the line condition deteriorates to the point where an acceptable
connection cannot be maintained, the next layer of protection will be
enabled, and the connection will
automatically be terminated. The LCD
display of the FieldFone II will show:

FIELDFONE II USERS GUIDE
1313
When this occurs, the originating FieldFone, FieldFone II or
StudioFone will automatically redial the line if the auto redial option
has been set ‘ON’ (the default is ‘OFF’). You can also manually redial
the line, possibly using a lower bit rate if necessary. The maximum bit
rate can be changed with the keypad by using the command sequence:
<Operation><Bit Rate><baud rate>
where <baud rate> = 33.6, 31.2. 28.8, ..., 14.4K
The maximum bit rate can be changed only when the FieldFone II is off
line. Although the FieldFone II will ‘fall back’ to 12.0 kb/s, you can
not initially establish a connection at bit rates lower than 14.4 kb/s.
Setting the rate threshold will also determine the bit rate of the
connection when the modem is going through the auto-baud sequence
when the connection is first established. Setting the rate threshold to HI
will allow fewer errors in the connection.
Under some circumstances, where the line condition is not constant, the
calling unit may establish a high rate connection that can not be
supported over time. If this occurs, the FieldFone II will automatically
re-negotiate the connection, causing a momentary muting of the audio.
You can also manually hang up and redial selecting a lower bit rate
before re-establishing communication.
Setting Loopback State
Five loopback states are available, and they are an invaluable
troubleshooting aid should you encounter problems. The system
loopbacks can be accessed by using the command sequence:
<Setup><Sys Loopback><state>
where <state> = Local Lb, Conv Lb, Modem
LB, Remote LB or None
In Converter Loopback, the loop-back is performed after the A/D
converter, before the encoder. This mode can be used to test the
functionality of the A/D and D/A
converters and for adjusting input and
output levels. When this mode is selected,
the FieldFone II display should look like
this:
In Local Loopback, the signal is looped through the encoder and
decoder, but not through the modem. This mode is used for testing the

FIELDFONE II USERS GUIDE
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encoder and decoder. If the FieldFone II is in local loopback, the
display will look like this:
Modem Loopback loops the signal on the analog side (output) of the
modem. Using the modem loopback enables you to test all functions of
your FieldFone II, including the A/D, D/A, encoder/decoder, and
modem sections. When in modem
loopback, the display should look like
this:
When in this mode, the FieldFone II behaves as if an actual connection
has been established; i.e., the red ‘ON LINE’ LED will flash for a while
and then stay on. To exit the modem loopback mode, press the END
key, followed by the ENTER key. This will automatically return the
FieldFone II to normal operation mode.
Remote Loopback puts the far-end modem into digital loopback. After
a connection is established, the far-end modem is looped digitally,
before the encoder/decoder. This is useful for testing the
communications link as well as the FieldFone II. When in the remote
loopback state, the display should look
like this:
Notes on using remote loopback:
—During remote loopback, the loopback state of the far-end
FieldFone, FieldFone II or StudioFone must be ‘NONE’.
—Do not attempt to change the configuration of the far-end
FieldFone, FieldFone II or StudioFone.
—Terminating the connection will not reset the modem into normal
operation. You must manually switch out of the remote loopback
mode after dropping the line.
For normal operation; i.e., passing audio to, and receiving audio from a
far end unit, the loopback mode must be set to None.
To verify the current state of the FieldFone II loopback, up-arrow to the
top of the menu tree. For normal end-to-
end operation, the display should look
like this:
Adjusting LCD Display Contrast
The LCD has multiple contrast settings, which can be changed using the
keypad sequence:
!

FIELDFONE II USERS GUIDE
1515
<Setup><LCD Contrast><level>
where <level> = Light or Dark
It is possible to repeat this operation to increase or decrease the LCD
display contrast over a wide range.
Setting Modem Time-Out
Every time you dial a call, whether manually or using speed-dial, the
modem will wait for the far end FieldFone, FieldFone II or
StudioFone to answer. The time that your FieldFone II will wait
before giving up is set by the following sequence:
<Operation><Modem Control><Dial Timeout><time>
where <time> = seconds to wait before giving up.
Please note that for international dialing, the time out period may need
to be extended from the factory default.
Answer Ring Number
The user can select on what ring number the FieldFone II will answer
an incoming call. The number of rings that the FieldFone II will wait
before answering is set by the command sequence:
<Operation><Modem Control><Ring Number><number>
where number = 1 to 7
Be careful not to set the ring number so high that the calling
FieldFone, FieldFone II or StudioFone will time out before your unit
answers.
Auto Re-dial
The FieldFone II can automatically re-dial and re-establish a connection
whenever a call is terminated abnormally. Therefore, when this option
is active, only the call originator should terminate the connection, or
else the originating FieldFone, FieldFone II or StudioFone will re-dial.
To control this function, use the command sequence:
<Set Up><Auto Redial>
‘AT’ Commands
The FieldFone II uses a state-of-the-art Hayes compatible modem. All
standard ‘AT’ modem commands are supported, and can be entered
using the keypad and command sequence:
<Operation><Modem control><AT Command>.
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FIELDFONE II USERS GUIDE
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Discussion of the available commands is beyond the scope of this Users
Guide. For a complete list of the available modem commands, contact
MUSICAM USA.
User Profile
The FieldFone II is shipped from the factory with the internal modem
configured for North American operation, no PBX. Modem operation
in some foreign countries, or when using a PBX may require different
modem settings. For example, some countries do not use dial tones,
and have different ring and busy tones.
Your FieldFone II does not automatically save these modem profiles.
Once these modem profiles are entered using ‘AT’ commands, they will
be lost when the FieldFone II is turned off. You can save the current
modem profile for later recall using the command sequence:
<Operation><Modem control><User Profile>
Manual Dialing
Once all audio and phone connections have been made, and all
functions have been set up properly, you are now ready to dial into a
far end FieldFone, FieldFone II or StudioFone. The manual dialing
function of the FieldFone II can be accessed in one of two ways. You
can use the key sequence:
<Operation><Modem Control><Dial><phone number>
and press ENTER
or press the DIAL button, enter the phone number, and press ENTER.
The phone number can contain the following dial modifiers:
PPulse dialing first character only
TTone dialing first character only
,2 second pause
WWait for second dial tone
!Flash (1/2 second)
@Wait for 5 seconds of silence
;Return to command mode after
dialing
All dial modifiers can be accessed with multiple presses of the
key.

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As an example of using dial modifiers, suppose you want to disable call
waiting tones (we recommend doing this), dial a number using the
AT&T access code, wait 10 seconds for the switchboard to answer, and
then dial the extension. To do this, the phone number should look like:
*70W102881area_code, number, @@, extension_number
To terminate a call, simply press the END key, or you can use the key
sequence:
<Operation><Modem Control><Hang up>
and press ENTER when prompted to ‘HANG UP NOW.’ Please
remember that the line is not dropped until you press ENTER .
To redial the last number, use the key sequence:
<Operation><Modem Control><Sdial>,
or you can press the SDIAL button (FieldFone II remembers the last
number dialed) and the ENTER button.
Programming and Using the Speed Dial Directory
To insert a new speed dial directory entry, press SDSET, *, I, then
enter a descriptive name, press ENTER, enter the phone number, and
press ENTER. The FieldFone II display will show the entry number for
a few seconds, and return to the top of the directory.
To scroll through the speed dial directory, press the SDIAL key and use
the left and right arrow keys. Once the desired number is located, press
the ENTER key to dial.
To delete a speed dial entry, scroll through the speed dial directory
until the desired entry is displayed, press *, D to delete the entry.
The last number dialed is always at the top of the speed dial directory.
To redial the last number, use the key sequence: SDIAL, ENTER .
Dialing Using Telephone Set
In some applications it may be more convenient to use a telephone set
to dial. For example, when placing a credit card call, you dial the
phone number, wait an unspecified time for the ‘gong’ and then enter
the credit card number. Since the time you have to wait for the gong is
variable, it is difficult to use an automatic dialer.
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