                               DEFINITIONS
                               -----------

NOTE:  Most manufacturers use a "1" to enable and a "0" to disable options,
       there are some exceptions and these are noted within the specific
       phone's file.


ACCOLC   ACCESS OVERLOAD CLASS

A two digit field used by the Cellular carriers to determine who has
priority access in the event of an emergency.  This has not been widely
implemented and the suggested entry is 0 and the last digit of the
telephone number for general subscribers.


EE       END TO END

A single digit (1 bit) entry that determines whether DTMF tones ("Touch
Tones") are transmitted over the voice channel to allow access to remote
services.  Set to "1" under normal circumstances.


GIM      GROUP IDENTIFICATION

A two digit/four bit field that determines how much of the SIDH is used to
identify when the mobile is roaming.  This number is normally 10 in the USA.


HA       HORN ALERT

A single digit (1 bit) entry that enables the horn alert on mobile phones.
When enabled ("1") most mobiles will send a ground pulse to the horn alert
connector (usually a wire in the power cable) during the first few rings.
This is designed to honk the horn or flash the lights, a relay must be
used to avoid damage to the phone as the output pulse is low current.


HF       HANDS FREE

A single digit (1 bit) entry that enables the hands free feature on phones
so equipped.


IPCH     INITIAL PAGING CHANNEL

A three digit number indicating the initial paging channel, normally set
to 333 for non-wireline (A) and 334 for wireline (B) systems.  A leading
zero is common in this field.


LU       LOCAL USE MARK

A single digit (1 bit) field that determines whether the phone transmits
registration information as soon as it powers up, usually set to "1".


MIN      MOBILE IDENTIFICATION NUMBER

This is in fact two entries, MIN1 and MIN2.  MIN2 is the three digit area
code and MIN1 is the seven digit phone number.  On most newer phones this is
entered as one ten digit number and is rarely referred to as MIN1 and MIN2.


MM       MIN MARK

A single digit (1 bit) entry that determines whether the phone transmits the
area code when accessing the system, usually set to "1".


PS       PREFERRED SYSTEM

A single digit (1 bit) entry that determines whether the mobile scans
channels 1 through 333 for the "A" system, or channels 334 through 666 for
the "B" system.  Set to "0" for A, and "1" for B system.  This entry should
match the last digit of the SIDH (see below).


REP      REPERTORY

A single digit (1 bit) entry that enables repertory memory (speed dialing),
normally set to "1".


RM       RADIO MUTE

A single digit (1 bit) entry that enables the radio mute feature on mobiles
so equipped.  Generally only available when the horn alert feature is
disabled as the radio mute often uses the same wire as the horn alert.
When enabled the radio mute wire/connector will go to ground when the phone
is in use.  Use this ground to turn off or mute the car stereo, as with horn
alert use a relay.


SCM      STATION CLASS MARK

A 4 bit binary, 2 digit decimal field that designates the power output,
number of channels and whether the phone is capable of VOX operation (voice
operated, or push to talk transmission.  Saves battery life on portables,
only relevant when the Cellular system supports this feature).  The most
common entries for this field are:

           BINARY  DECIMAL  # OF CHANNELS  POWER OUTPUT  VOX

           0000     00          666             3        NO
           0010     02          666            .6        NO
           0100     04          666             3        YES
           0110     06          666            .6        YES
    *      1000     08          832             3        NO
    **     1010     10          832            .6        NO
           1100     12          832             3        YES
           1110     14          832            .6        YES

*  Most common for all newer mobile phones.
** Most common for all newer portable phones.


SIDH     SYSTEM IDENTIFICATION (for) HOME SYSTEM

A five digit decimal number that is specified by the system operator.  The
last digit corresponds to the Preferred System mark 0 or 1 (see above).

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