                               
                      C O M C A L L     V E R   3 . 1 . 1
                         
  
                                INTRODUCTION
  
         FOR AN INITIAL OVERVIEW OF THE COMCALL PACKAGE - READ THE FILE
                               
                          ***   README.1ST   ***
  
  
                                CONTENTS
  
  
                               LICENCE
                               REGISTRATION\SUPPORT
                               ACKNOWLEDGMENTS
                               HISTORY
                               FILES
                               USAGE
  
  
  
  **************************************************************************
  
  1.                       COPYRIGHT AND LICENCE.
  
   
                          COPYRIGHT (C) 1991-1993
     Comcall Inc. 111 Deer Park Gardens, Mitcham, Surrey, ENGLAND CR4 4DX
  
  
                             ALL RIGHTS RESERVED
  
  
  
       COMCALL  is  distributed  under  the  SHAREWARE  principles.  The
       Author reserves all COPYRIGHTS (C) to the programs and associated
       documentation.  In using this program you agree to the terms that
       NO LIABILITY OF ANY KIND EITHER THROUGH DIRECT USAGE  OR INDIRECT
       USAGE OR INABILITY TO USE THIS PACKAGE OR FAILURE  IN THE PROGRAM
       TO OPERATE AS  DESCRIBED WILL  BE  PAYABLE OR DUE  BY THE AUTHOR.
       You are granted a limited  licence  to  use  this  program  for a
       limited period of 30  days for evaluation purposes  only.  If you
       intend  to  use this  program beyond  the  trial  period  you are
       requested to register your copy.   Registered copies will receive
       postal\Email support  (telephone support provided where possible)
       and upgrade options as and when available.  Failure  to  register 
       your copy  may result in further development into this  and other  
       packages  not being under taken by  the  author  as  a  result of
       financial restraints.   Don't be  a  contributory  factor  to the
       demise  of  SHAREWARE.    Assist  the  authors   who  have  spent
       considerable  time  and  effort  by  registering  your  SHAREWARE
       packages. Reverse engineering and/or  modification to the Comcall
       code or documentation is prohibited.
  
  
  
  ****************************************************************************
  
  
  2.                           REGISTRATION
  
  
  CONTACT POINTS:-
  
  
  If you find this package   to be of  some use and  would like to continue
  to  use it  beyond  the evaluation    period of 30   days then remit your
  payment and details  directly to the authors mail collection point at the
  following address.  All cheques/PO etc should be made payable to C Jones.
  Do  not forget  to  forward details as  to  your return address  and your
  preferred disk size/format.
  
  
  AUTHOR.
  
  UK - 24 Pounds Sterling or 39 US Dollars :-
  
         (UK/US Cheques/Postal Orders Only - sorry on charge cards)
  
  
         POSTAL               COMCALL
                              111 Deer Park Gardens
                              Mitcham
                              Surrey
                              ENGLAND
                              CR4 4DX
    
                     (Sorry, no personal callers)
         
         EMAIL
  
                Compuserve  : 100014,3141
                CIX         : cgjones@cix.compulink.co.uk
                Fido Netmail: The Author regularly logs into ARKHAM BBS
                              as a FIDONET point.
                              Fido Netmail Messages Should be Addressed to
                              2/252/151.3
                              Arkham BBS is available on 44-71-738-5596    
  
  
  NOTE :  Compuserve members may now register  directly  on  line  and make
  direct payment.   Simply access   COMPUSERVE and  GO  SWREG.   Comcall is
  registered as COMV31.EXE and may be  found in IBMCOM Lib  2 (Registration
  id 721). 
  
  
  AGENTS.
  
  Alternatively,  Comcall may be registered via one of International Agents
  at the following points:-
  
  
  USA - 39 US Dollars
  
  
                              G. M. Debus
                              2021 Tiffany Lane
                              Jonesboro
                              Ga 30236
                              USA
  
         EMAIL
  
                Compuserve: 70733,3466
  
  
  USA - 39 US Dollars
  
  
                              Steve Sisson
                              West Virginia MicroSystems
                              8127, Sissonville Dr
                              Sissonville
                              WV 25320
                              USA
  
         EMAIL
  
                Compuserve: 76420,143
  
      
  France\Belgium - 195 French Francs\1200 Belgium
  
  
                              Ian Culpin
                              Strider Tech
                              BP 46
                              B-1332 Rixensart
                              Belgium
  
         EMAIL
  
                Compuserve: 100037,357   
  
  
  
  Registrations may also be accepted via  one of the  Shareware Houses that
  we are currently registered with, most of whom accept credit cards.
  
  
  
  Registration entitles you to continue  to use the  Comcall package beyond
  the trial period together with support of  the package (postal/electronic
  mail plus   telephone  where possible).    As a registered user  you will
  also be advised of upgrades  as and when they become available.
  
  The current registrational  contribution  is  24   UK Pounds  Sterling or
  39.00   US Dollars.   This entitles you to   a continuation in a   single
  licence beyond the 30  day trial period and package support together with
  automatic registration for the next   available   version   as  and  when
  this becomes available.  (Don't forget to state your disk size/format and
  forwarding address).
  
  Registration also  provides you with the option  to  purchase the various
  hardware options as  outlined  within the  Comcall manual on a  cost only
  basis (zero profit).
  
  We regret  that  we  are unable  to  support versions beyond that  of the
  current and immediately proceeding versions.
  
  There are numerous  methods of payment  as shown above.    For example we
  can   directly  accept  cheques,  postal  orders  or  cash  in  UK pounds
  Sterling,  US dollars or  French    Francs  (sorry  as of yet  we  cannot
  accept Mastercard/Visa directly).  If you wish to pay be charge card then
  you  can use either  Compuserve  or  one  of  the  Shareware registration
  agencies who have  the Comcall package  on  their  books.  Registrational
  payments from  EEC member  countries can also  be made via  Eurocheque in
  either UK pounds or US Dollars.  
  
  
  COMCALL.EXE source code and rights are available for sale.  - Contact the
  author for further details.
  
  
  International   distribution/support   agents  required.   Want  to  help
  us  to  distribute  and support the Comcall   package?   then contact the
  author.   Agents receive   a  percentage  of all  registrations  received
  via their contact point.
  
  
  
  ENHANCEMENTS.  Upon    proof   of    sufficient   interest in the program
  (e.g.  registrations/enquiries)  then  the   author  pledges  to  provide
  further releases     of  Comcall.   Your  registration contributions will
  ensure   that  such   improvements    see  the light   of    day.    Such
  later   releases   may only be available to currently registered users.
  
  
  
                              SUPPORT CONTACTS
  
  
  Support  is  currently  via  messaging  (postal/electronic).   Telephonic
  support may be provided where possible and where the cost of  such is not
  bourn by Comcall Inc. 
  
  Contact may be established in a number of ways at  one of  the address or
  points listed above.
  
  Please attempt to  clearly state any problems  or  difficulties  that you
  may be experiencing in any correspondence.
  
  
  ******************************************************************************
  
  3.                            ACKNOWLEDGMENTS
   
  Thanks to all the currently registered  users for your  financial support
  in helping to keep the Comcall package alive.
  
  My appreciation  also  goes out  to all of you who have  written  in with
  ideas suggestions and tips.   Your  letters have helped me  revitalise my
  enthusiasm in times when this may have been failing.
    
  My personal gratitude goes  out to those  who aid in  the distribution of
  the Comcall package.
  
  We acknowledge all current  and  future  trademarks  that  might  be used
  within this documentation. 
  
  ******************************************************************************
  
  4.                             HISTORY
  
  
  Dec    1989. Initial Development Started.
  Aug    1990. B 0.1 Released.
  Feb    1991. B 0.2 Released.
  Aug    1991. B 0.3 Released.
  Dec    1991. Version 1 Released.
  April  1992. Version 2 Released.    
         Modem Initialisation Modification.
         Pulse Dialling bug fix - thanks to Kevin Black
         Log file format modification - thanks to Dave Woolcock
         User definable delays/modem initialisation added.
         Key entry screen modified to delayed entry for auto recall
         Thanks to Dave Hickman (CA, USA).
         General minor changes.
         Configuration options added.
         Browse log option added.
         Delay tone toggle added.
         Delay time from real time and not machine specific.
  August 1992.  Version 3.
         Moved from command line to prompted initialisation.
         Dual Trigger Conditions Added.
         Time display.
         Colour Options
         Warning Tone on/off Options
         Ringback string definition.
         Auto Delay Entry modification.
         Batch file option added.
         Browse manual option added.
         Busy tone retries level option added.
         Reboot option (TSR)
  September 1992.  B.3.1 betta.
         Bug fix to T advise call option (Thanks Larry for your Canadian
                                          patience).
         Reboot utilities added to aid batch control.
         Multiple recall function added to EXECITAT and COMBOOT.
         Improved interface.
         Online manual option added.
         Jump to config option added.
         Remote electrical switching hardware options added. 
         Partial Windows Multi-Tasking Environment Support Added.
         X Trigger option mods.
  March 1993.  Version 3.1 (gamma) released.
  April 1993.  Version 3.1.1 Released.  Late code additions 
        include a screen saver, a NO DIALTONE check and repeat function
        on advisory call triggers and a new  manual and log browser that
        is now limited only by available memory (previously 700 lines max)
  
  Planned/Under Investigation:-  
  
         Remote Remote Option.  To remotely control a remote control device
         (e.g. VCR/TV/Radio/Garage Doors etc) using your PC and Modem or 
         telephone and answerphone.  We will describe later how we have  
         already managed to partially achieve this in another section.
  
         Improved Multi-Tasking environment interface (Mouse/Windows). Some
         enquiries have been received as to whether it is  possible to move
         Comcall to  a  background  mode  of  operation.   With the current
         evolution of Windows and the growing numbers of 386 based machines
         around, the ability to use Comcall from within Windows would 
         appear the best suited way for this to be realised. Comcall 
         already appears to function  reasonably well as  a background 
         task within Windows.   We will endeavour to improve the 
         interface of Comcall within such an environment over future
         releases.
  
         Additional Functionality for terminal. Host mode option 
         to improve electrical device switching from remote locations.
         Comments and suggestions from those of you who might utilise    
         the latest P/S/C Switches would be appreciated.  
  
         Additional options for Tone Switching electrical devices
         (described later in another section).
   
                
                         ----------------------
                            CURRENT VERSION
                         ----------------------
  
  
  Comcall  is  continuously  under  further  development.    We  appreciate
  comments  and  views  with   regard   to   possible  improvements  to the
  package.   If you do   find   any errors  or have any constructive  ideas
  then drop us a line.    The author   has put in   considerable effort and
  time  in  developing Comcall. Its  nice  to know  whether  his endeavours
  are being appreciated.
  
  
                   ------------------------------------   
                    U N D E R    D E V E L O P M E N T
                   ------------------------------------ 
  
  Unless you register for the current version of    COMCALL,   you may miss
  out on  future  developments.     Currently   Comcall   is   entering  an
  exciting phase. Soon we hope   to be bringing  you a package that will be
  unique in its field. A  package that  will  offer  new  meaning  to   the
  term    'remote control'.  Operating over a single telephone  line   that
  may be shared   with normal voice and answer phone set ups,   you will be
  able to remotely  control  your video, stereo,   TV,   curtains,  lights,
  garage doors etc,  even to turn your PC and Modem on/off.    If   you are
  registered  with  Comcall,    then you will   be automatically advised of
  when such options   become available.   All this in  addition to Comcalls
  existing  functionality.    The   next  release  of    Comcall,    may be
  released via Commercial  methods (buy  before  you use)  or via Shareware
  distribution.    However,  for  all  users  registered  under the current
  upgradable version, the next release will  be offered  as per the current
  terms.
         
  
  
  *******************************************************************************
  
  
  5.                              FILES
  
  
  The Comcall package contains the following files:-
  
                            INSTALL.EXE
                            COMCALL.EXE
                            COMDO.COM
                            EXECITAT.EXE
                            CHKBOOT.EXE
                            COMBOOT.EXE
                            STOPBOOT.EXE
                            AT_SET.TXT
                            INTRO.TXT
                            INSTALL.TXT
                            RUNNING.TXT
                            ADDS.TXT
                            COMMAN.EXE
                            READMAN.EXE              
                            WINDOW.TXT    
                            README.1ST
     
  
  They  are distributed within   a single   self  extracting  archive file.
  
  If you received any additional files within  the package then  we suggest
  that you do not use that version (we'd appreciate any advise  as to where
  you might have obtained such a version).
  
  Once Comcall has been  installed and   ran  at  least   once,  then three
  additional files will be automatically created:-
  
       CALLRING.DTL - a log file containing ring/action details
       COMCC.DTL    - a Comcall configuration file.
       COMVALS.DTL  - holds default values for the comcall session
  
  
  The  Comcalls   manual   may be   directly  viewed  from  within Comcall.
  The   Manual is    indexed into  a number  of  text  files  for  ease  of
  reference.   If you wish to obtain a hard copy version or parts of all of
  the manual then this may be achieved by  printing the  relevant .TXT file
  to your local printer.
  
  For cross reference,  the  .TXT  file  names  for   each  of  the manuals
  sections are as follows:-
  
  
                  Introduction           INTRO.TXT
                  Installation           INSTALL.TXT
                  Running                RUNNING.TXT
                  Utilities              ADDS.TXT
                  Comcall and Windows    WINDOW.TXT
  
  
  The online manual reader uses the following control keys :-
  
                  Up-Arrow     - Line Up
                  Down-Arrow   - Line Down 
                  Page-Up      - Scroll Page up one page
                  Page-Down    - Scroll Page down one page
                  HOME         - Jump to top of section
                  END          - Jump to end of section.  
                  ESC          - QUIT 
  
  *****************************************************************************
  
  
  6.                              USAGE
    
  
  If you have  a telephone,    a Hayes command set  modem  and  an   IBM or
  compatible with 512   Kbytes of   memory  that is  running under DOS  3.0
  or higher, then COMCALL may be of use.
  
  COMCALL  is  a package that  contains  a  number  of  utilities.   It  is
  designed to monitor     your phone    line in    your absence.    It will
  either  call   you  at  ANY other phone location  that    may be directly
  dialled     to     advise you when a pre-defined trigger     is   met, or
  execute a  command  to   start some alternative   action.   Alternatively
  Comcall will simply   monitor and log any incoming    calls    such    as
  when   you   are using     an answerphone with no   call   time   logger.
  Comcall is constantly under  further development.     The next version is
  intended   to    add  even greater flexibility  in   Comcalls usage.  The
  latest version  now includes additional options that  will  enable you to
  control electrical devices from a remote location.  
  
  Comcall Version 3.1.1 is distributed as a fully functioning version. 
  
  Version 3.1.1  introduced the additional Switching options.   Such as the
  ability to  switch electrical   devices from a remote location,  with the
  telephone  line  used  to  perform such  switch  request monitoring being
  shared with  normal  voice/answerphone  calls.   Alternatively   you  may
  simply  switch  electrical    devices  locally  using   simple  commands.
  Additional  hardware is required to  be  added to  your home based system
  (or  the system  where  you  wish  the  electrical  switching  to occur).
  Currently,  three separate  hardware  options have been added  to perform
  such  switching.   We call  these the P/S/C Switches  and their  usage is
  outlined within the Additionals and Installation sections of  the Comcall
  manual.
  
  Due to COMCALLs flexibility,   the setting  up and running  of a  COMCALL
  session may,  in  the first instance,  appear a little  daunting.   Don't
  worry.   Persist in reading the manual and checking the  set-up.  After a
  little while you'll  come to grasp just  how simple  it can be to  set up
  powerful actions and commands.
  
  The  Comcall  package  basically  consists  of  a   number   of  separate
  commands\utilities that may   be linked together  in such a way in  order
  to   offer truly   powerful and  flexible options.    Start with the main
  Comcall  utility and learn   its   set up and  functionality  well before
  progressing  on  to  include the   other utilities.  Once you have a firm
  grasp of COMCALL then start to add in  the other utilities to  your skill
  base.  In no time at all you'll find your able to set up actions to suite
  most needs if  you follow  this  simple   method of learning  the COMCALL
  package.
  
  Some limited knowledge of  DOS and  BATCH  files  is  assumed  throughout
  this manual   and   is it also   assumed that   you have a  modem and one
  form   on comms package   or   another up   and running so  that  you can
  communicate   with other systems.    If you are  totally unfamiliar  with
  modems,   comms,  DOS and batch files  then  may we  suggest that  you do
  become a little more   proficient in setting up and using  these prior to
  attempting to utilise Comcall.
  
  Comcall will work with many  telecommunications hardware devices  such as
  existing phones, extensions, answerphones etc.
  
  No special hardware    is    required    at   the recipient   end  of the
  triggered call if a telephone advice action is selected.   Any phone that
  may   be DIRECTLY    dialled is sufficient.   You can even set Comcall to
  advise you via a tone pager service.   For the physical switching options
  (and future remote/remote control option)   some additional  hardware  is
  required  at  the   target   end.    The   circuitry   involved  for  the
  physical   switching is relatively   basic  and the units can be obtained
  directly  from  the Comcall author  on  a zero  profit  basis.  Supply is
  organised on  a strict  first come  first served basis.   (We regret that
  supply is limited to registered Comcall users only).
  
  
                            --------------------------
  
        
  
                                A C T I O N S
  
  For the action options,  the trigger condition for COMCALL  is   a  range
  of    counts    of   incoming rings    to your telephone. You define this
  upon starting COMCALL   and is totally  variable.   Such as one (and only
  one)   ring being received (eg  like a RINGBACK set up)  or maybe between
  2  and 4  rings  (your answer phone  would have received a  message),  or
  maybe    all rings eg  1   -   999  (999  being the COMCALL limit).  This
  enables you to trigger actions or commands from a  remote location simply
  by making a suitable telephone call  to  your base system  and hanging up
  the phone at the required triggering point. 
  
  Only consecutive  rings  from  one  call  are  counted.   If  the trigger
  condition  is not   met then    the    ring   count   will  be  reset and
  Comcall will wait for subsequent calls.  
  
  All   incoming  rings are logged  to   a  file   called CALLRING.DTL  for
  later inspection    if  required.   Useful  if you've been  out and would
  like to see how many calls you missed.
  
  Comcall may be individually  configured  to  suit   your  own particular
  needs and now incorporates a dual  trigger condition,  so that two ranges
  of trigger options may   be defined  in order    to perform  two separate
  operations according  to  which  trigger  condition was encountered.
  
                              
                         EXAMPLE USAGES OF COMCALL:
  
  
  1.  
  
  You have   an    answerphone   but it   does not have a   time/date stamp
  option.  You go away   for the weekend only   to return to    a number of
  messages.   When were these messages taken?    Providing  you had invoked
  Comcall,  then   you will  be    able to see exactly    when the messages
  were left (day   and time).   You will even be able to see how many calls
  resulted in messages not being left and when these occurred. 
  
  
  2.
  
  A family member may be ill in hospital or your wife  may have  been taken
  into maternity as  your  babies due  date    nears.    You have an answer
  phone   and you have    to   go   out on  some  urgent business. You  are
  fearful that   you may receive   that  all  important call whilst you are
  out.    The answer phone will  take the    message but you won't  know of
  this  until  you   next  return  home   or  until  you  phone    up   and
  interrogate your    answer phone  next (assuming you have a remote access
  answer    phone).    Provided you either have a radio pager  or  know the
  telephone    number of  the person    whom  you  are  visiting   worry no
  further.     Simply invoke COMCALL to monitor your line,   giving it  the
  number of the person whom you are visiting (or the radio  pager  number).
  Go  on    out    about your business    and   if  a  message  comes   in,
  then you will  be automatically advised.
  
  
  3.
  
  You are in the office late on a  Friday  evening.   You still haven't met
  that  all important deadline  for your    project and you  really  should
  come   in over  the weekend to   finish that  draft overview.    But your
  office is over 30   miles away.    For security reasons,  you may not  be
  permitted to take floppy disks out of  the office and  possibly no inward
  external   network access    exist  into   your offices PC  system.  Your
  office    PC   does   however have  a  modem  for  outgoing data transfer
  and  you have   a   PC,    modem  and  communications  software  at home.
  Simply invoke your copy   of COMCALL to trigger   after say just one (and
  only one)   ring of your office telephone.   When this trigger is met you
  want it to start   your  comms package, via a suitable bat file, that has
  been set to    autodial    your home phone number.     You can    then go
  home in  the knowledge that  you do  not  have to drive  all   the way in
  to work tomorrow    and   can work    from   home.   All that is required
  the next day is for you to call your office phone, hang up after just one
  ring,   set your home PC,   Modem and Comms package  to  autoanswer  data
  mode and then  wait  for the return  call  from  your  office   PC.   You
  should be confident that no one else will  ring your    office phone just
  once    and then   hang   up.  Even if then did it  would    be of little
  consequence   as    you would simple receive a call  from  your  works PC
  which you could   then   just   hang  up on. Provided you have set up the
  triggering system correctly,  your works PC would then resume waiting for
  another single ring. 
  
  4.  
  
  Away  on  vacation,  you want to be able  to control your lights  at home
  remotely. Take your portable PC and modem, and leave your home system set
  up  in  Comcall with  the relevant  lights (or  other electrical devices)
  plugged into the  S-Switch device (described later) and you can then call
  in at will to turn the lights on/off. The same principle could be used in
  order  to  turn on your  slow cooker from   work if  so desired.  Leaving
  you to arrive home to a  freshly cooked,  hot dinner.  Alternatively, the
  C-Switch can be used to  perform a similar function  to  this without the
  need to have any hardware at the signalling end (e.g.  if you don't own a
  portable PC/Modem).
  
  5.
  
  BBS sysops running a single or multiple  line system could  utilising one
  of   their older slow  speed modems  and the S-Switch  to  have  a set up
  whereby they could use their normal voice line to be able to call  in and
  perform  a physical  power off-on  reset of  the main BBS's  modem from a
  remote location.   This  would be ideal  for cases   when the BBS systems
  might be hung (in-accessible).  Assuming that the BBS was running under a
  multi-tasker   such  as DESQVIEW or  Windows,  a small partition could be
  allocated in order to have a ring-back set-up  similar to  that described
  in 3 above, except that the set up could be made to place a comms program
  into host mode on the normal voice line so as to enable a subsequent  via
  this line to  access via  data mode.   The 'set data mode'  call would be
  free of charge as no actual connection would be made for this (just a few
  'rings').  Ideally, only a small comms package is required for this so as
  to minimise  memory  requirements.  The system could be  set so  that you
  could access the S-Switch via this small comms program  upon   the return
  data call, thereby allowing you to request a physical power-off, power-on
  reset of the main BBS's modems power  supply.   Usage of the timed reboot
  programs,  EXECITAT or  COMBOOT could be  utilised  between  the set-data
  trigger call and the return data mode call in order to  enure that,  if a
  return  data call did not occur within  a specified time,  then  the line
  would be reset back to voice mode.  Notice that such a set up would  only
  cost you the price of the one  data mode call  in order to reset  the BBS
  modem (which could be made from practically anywhere in the world) as the
  initial trigger (set data mode call) would not actually require a connect
  (ring range only).  
  
  Alternatively,  you  could simply  use the Comcall  and  the  S-Switch to
  monitor for a specific  number of rings,  that you have defined,  to your
  voice telephone line,  with the trigger action  being to  reset  your BBS
  modem via a power off/on  reset.   This is however,  slightly less secure
  than the first method described as a normal voice call could come in with
  the same number of rings as the trigger condition.
  
  Or what about using the C-Switch to switch your modem and PC  both on and
  off from a remote location, without the need for any hardware/software at
  the  request initiation  end.   This would  appear  more  appropriate for
  sysops of single line  BBS systems that  were running under  a single DOS
  environment.
  
  My set up :- 
  
  I use Comcall for a number of purpose.   
  
  Firstly I am  on  occasions telephoned  in  the middle of the  night with
  messages that have to be dealt with promptly.    My answerphone will take
  these messages,  but,   being a sound sleeper,  I am seldom awoken by the
  few  rings prior to  the answerphone starting.   I set Comcall to  a ring
  range  count of  1   -  10   (eg  any  calls  prior  to  the answer-phone
  answering)  and an action of E REM.    Additionally  I set the delay time
  to 360  and delay tone on so as to raise an alarm. Any calls that come in
  during the night therefore raise a PC alarm tone to awaken me.   
  
  Secondly,   as   my   office is over  15   miles away,  I  set Comcall to
  call me with   advise   of  any  pending messages  that  may  be  left on
  my home  answerphone throughout  the day.   I   utilise  my  answerphones
  remote  interrogation    option   to  then  respond   to   any  important
  matters.    
  
  I   have   on   a number of occasions used the power-switching options in
  order to  control a  wide  range  of  electrical  devices.   Ranging from
  triggering   a  modem power off power on,  remotely  in  order  to  reset
  its  switches,   to  making  a remote   call   in   order  to record a TV
  program on my Video  recorder.   For the later,  I used a modified remote
  controller that was switched using a P-Switch,  with its outputs arranged
  in such a fashion so as to  be able to  select   up  to  16  combinations
  of remote  controller keypad values   (4  by 4  array using the 8 outputs
  from   the  P-Switch).   
  
  Finally,  I  use Comcall to  allow me  to call into  my home PC  from  my
  office.  I only have the one telephone line  sharing both the answerphone
  and   modem.   To use my home PC I simply set a   trigger range  of   1-2
  rings and an  action  of  X   with an error   level of   2.    This error
  level is   then   picked  up  from within  my  modified autoexec.bat file
  in order to start my   comms package in  host   mode and await my  return
  data call.    I utilise  the re-boot option   for this   to ensure that I
  re-call  within   5   minutes,   otherwise the   PC   reboots and reloads
  Comcall  via the autoexec.bat  file and  switches the line back  to voice
  mode.   I have personally  found  this to be invaluable in helping to set
  up the BBS that I am currently preparing,  without the need  to install a
  second dedicated telephone line.  If combined with a C-Switch, such usage
  enables  me  to also power on  my office system  (modem and  PC) prior to
  requesting data operation mode.  Once I have finished with the data link,
  I can then simply make a remote  power off request to  switch  the PC and
  modem back off again. 
  
  Additionally,  I use the EXECITAT utility to perform daily tasks  such as
  disk back-ups and to invoke disk utilities etc on an automated basis.
  
  My ultimate  initial dream of  being able  to  control  a  remote control
  controller (for my video recorder) from a remote location has now dawned.
  A future version of  Comcall containing  a generally available  option to
  perform such a task is intended to be included within a  later release of
  the package.   As you will see from the  above I have  already managed to
  personally achieve this  for  my  own  personal  use,  but  it  does need
  additional effort before I would be  in  a position  to generally provide
  this as an integral part of the Comcall package.   In the mean time, with
  limited knowledge of keypad arrays and the P-Switch,  you could make your
  own setup perform this task under the current version.
