EXHIBIT 10.6

                                PLEDGE AGREEMENT


                  PLEDGE  AGREEMENT  (the  "Agreement"),  dated as of March  13,
1996, made by RHI HOLDINGS, INC., a Delaware corporation  ("Pledgor"),  in favor
of Gadsby & Hannah (the "Pledgee").


                                R E C I T A L S :

                  A.  Pursuant  to the  terms of an  Agreement  to  Exchange  6%
Cumulative  Convertible  Preferred Stock and Special Preferred Stock dated as of
March 1, 1996 (the "Exchange Agreement") among Shared Technologies Inc. ("Shared
Technologies"), The Fairchild Corporation ("TFC"), RHI and Fairchild Industries,
Inc. (a  wholly-owned  subsidiary of RHI),  RHI has received  250,000  shares of
Series I 6% Cumulative  Convertible  Preferred  Stock,  par value $.01 per share
(the "Convertible  Preferred Stock"),  of Shared Technologies and 200,000 shares
of Series J Special  Preferred  Stock,  par value $.01 per share  (the  "Special
Preferred  Stock"  and,  together  with the  Convertible  Preferred  Stock,  the
"Preferred Stock").

                  B. This  Agreement is given by Pledgor in favor of Pledgee for
the benefit of Shared  Technologies to secure the payment and performance by the
Indemnifying  Parties (as  hereinafter  defined) of  Indemnification  Agreements
dated  the  date  hereof  (the  "Indemnification   Agreements")  between  Shared
Technologies  and each of TFC, RHI, and Fairchild  Holding Corp.  (collectively,
the "Indemnifying Parties").

                               A G R E E M E N T :

                  NOW, THEREFORE, in consideration of the foregoing premises and
other good and valuable consideration,  the receipt and sufficiency of which are
hereby acknowledged, Pledgor and Pledgee hereby agree as follows:

                  SECTION 1. Pledge. As collateral  security for the payment and
performance when due of all of the Indemnifying  Parties'  obligations to Shared
Technologies under the Indemnification  Agreements (the "Secured  Obligations"),
Pledgor hereby pledges,  assigns and grants to Pledgee for the benefit of and as
agent for Shared  Technologies,  until this Agreement  terminates,  a continuing
first priority security interest in and to all of the right,  title and interest
of Pledgor in shares of  Preferred  Stock of Shared  Technologies  described  in
Schedule I hereto (the "Pledged  Shares").  The term "Pledged  Collateral" shall
mean (i) the Pledged Shares and all other securities or property





                                       -2-



issued in exchange or as replacement for (by reason of merger, reorganization or
otherwise)  the Pledged  Shares by the  Company or a third  party ("New  Pledged
Shares")  and (ii) all other  assets or  property  substituted  for the  Pledged
Shares in accordance with Section 6 of this Agreement.

                  SECTION  2.  Delivery  of  Pledged  Shares.  The  certificates
representing the Pledged Shares,  together with stock powers, are,  concurrently
with the  execution  of this  Agreement,  being  delivered  to Pledgee (and with
respect to any New Pledged  Shares will be promptly  delivered  to Pledgee  when
received by Pledgor) and will be held by Pledgee  pursuant to and in  accordance
with the terms of this Agreement.

                  SECTION 3.  Voting Rights; Distributions; etc.

                  (a) Pledgor  shall be entitled to exercise  any and all voting
and other consensual  rights  (including  rights to exercise)  pertaining to the
Pledged Collateral or any part thereof for any purpose not inconsistent with the
terms or purpose of this Agreement.

                  (b) Pledgor  shall be  entitled to receive and retain,  and to
utilize free and clear of the lien of this  Agreement,  any and all dividends or
distributions made with respect to the Pledged Collateral, provided, however, if
a Dispute Notice (as hereinafter  defined) has been  delivered,  until there has
been a  resolution  of the dispute to which such  Dispute  Notice  relates,  all
dividends and  distributions  on the portion of Pledged  Collateral  required to
satisfy Shared  Technologies' claims under the relevant Dispute Notice, shall be
delivered to and held by the Pledge Agent.  Upon resolution of the dispute which
is the subject of the  Dispute  Notice all  dividends  and  distributions  shall
forthwith be delivered to the party in whose favor the dispute was resolved.

                  (c)  Pledgee  shall  be  deemed  without   further  action  or
formality to have granted to Pledgor all necessary  consents  relating to voting
rights and shall, if necessary,  upon written  request of Pledgor,  from time to
time execute and deliver (or cause to be executed and  delivered) to Pledgor all
such instruments as Pledgor may reasonably request in order to permit Pledgor to
exercise the voting and other  rights which it is entitled to exercise  pursuant
to Section 3(a) hereof and to receive the dividends and  distributions  which it
is authorized to receive and retain pursuant to Section 3(b) hereof.

                  SECTION 4. Other Liens.  Pledgor  shall not (i) sell,  convey,
assign or  otherwise  dispose of (except  pursuant  to Section  6), or grant any
option, right or warrant with respect to,





                                       -3-


any of the Pledged  Collateral,  or (ii) create or permit to exist any lien upon
or with  respect to any  Pledged  Collateral  other  than the lien and  security
interest  granted to Pledgee for the benefit of Shared  Technologies  under this
Agreement.

                  SECTION  5.   Cancellation  of  Pledged  Shares  upon  Payment
Default.  In the event  that  Shared  Technologies  claims it is  entitled  to a
payment  from  an  Indemnifying  Party  in  accordance  with  the  terms  of  an
Indemnification Agreement because of a payment that Shared Technologies has made
or is then  obligated  to make to a third  party and for which it is entitled to
indemnification  under the Indemnification  Agreements,  such Indemnifying Party
shall have 30 days (the "Notice  Period") from its receipt of written  notice of
such  claim to pay to Shared  Technologies  the  amount of such claim in cash or
dispute responsibility for indemnification of such claim by delivering a written
notice thereof to Shared  Technologies (a "Dispute  Notice").  In the event that
such Indemnifying  Party fails to pay any such claim or deliver a Dispute Notice
within such 30- day period,  Pledgee  shall deliver to Shared  Technologies,  at
Shared  Technologies'  request  (a  "Pledge  Notice"),  Pledged  Shares  or,  if
applicable,  New  Pledged  Shares  (in each  case  valued  at their  liquidation
preference)  in an amount equal to such claimed  amount and Shared  Technologies
shall  cancel  the same and they will  cease to be  Pledged  Collateral  for all
purposes of this Agreement. In the event of a claim subject to a Dispute Notice,
upon  settlement of such  dispute,  if the  Indemnifying  Party fails to pay the
amount owing to Shared Technologies, if any, as a result of such settlement (the
"Undisputed  Claim  Amount"),  within 30 days thereof,  Pledgee shall deliver to
Shared Technologies, upon delivery to Pledgee of a Pledge Notice, Pledged Shares
or, if applicable,  New Pledged Shares (in each case valued at their liquidation
preference) equal to the Undisputed Claim Amount and Shared  Technologies  shall
cancel the same. Any such  cancellation  of Pledged Shares or New Pledged Shares
pursuant to this  Section 5 will be deemed to have  satisfied  the  Indemnifying
Party's  obligations under the  Indemnification  Agreements for the claim to the
extent of the liquidation preference of the Pledged Shares or New Pledged Shares
so cancelled.  The  foregoing  rights of Shared  Technologies  shall not obviate
Shared  Technologies'  other available rights to seek  indemnification  payments
from the Indemnifying Parties.

                  SECTION  6.  Substitution  of  Collateral.  At  its  election,
Pledgor may  substitute  property or assets  owned by it for all or a portion of
the Pledged Shares (or New Pledged  Shares) so long as (i) the fair market value
of such substitute property or assets is at least equal to the fair market value
of the Pledged Shares (or New Pledged Shares) for which  substitution is sought,
as evidenced by the written opinion of an investment banking firm of nationally





                                       -4-


recognized  standing  reasonably  acceptable to Shared  Technologies,  (ii) such
substitute  property  or assets are not  subject  to any other lien or  security
interest at the time of such  substitution,  (iii)  Pledgor  delivers to Pledgee
such  instruments  and  documents  which are  necessary for Pledgee to perfect a
first  priority  lien on and security  interest in such  substitute  property or
assets and (iv) Pledgor, Pledgee and Shared Technologies shall have entered into
such amendments or supplements to this Agreement as are reasonably  requested by
Pledgee and Shared Technologies in order to ensure Pledgee's rights and remedies
hereunder with respect to such substituted property or assets.

                  SECTION  7.  Termination  of  Agreement;  Release  of  Pledged
Collateral.  On  the  Termination  Date,  this  Agreement  shall  terminate  and
Pledgee's and Shared Technologies' rights with respect to the Pledged Collateral
shall terminate and Pledgee shall promptly  deliver the  certificates  (or other
property or assets)  representing  the Pledged  Collateral to Pledgor,  free and
clear of any lien or encumbrance thereon.  "Termination Date" means the later to
occur of (i) the third  anniversary  of the date of this  Agreement and (ii) the
date on which the  consolidated net worth (computed in accordance with generally
accepted  accounting  principles) of The Fairchild  Corporation at such time (as
evidenced  by an audited  balance  sheet  delivered to Pledgee by Pledgor) is at
least  (x) $25  million  greater  than  such net  worth at  September  30,  1995
(excluding for such purpose any value  attributed to the Preferred Stock on such
balance sheet) and (y) $225 million (including for such purpose the value of the
Preferred Stock); provided that in the event of any outstanding claims under the
Indemnification Agreements that are subject to a Dispute Notice, the Termination
Date  shall  not be  deemed  to occur  with  respect  to an  amount  of  Pledged
Collateral equal to the claim which is the subject of such Dispute Notice, until
such  dispute  is  resolved  unless,  as to  any  such  claim,  the  appropriate
Indemnifying  Parties accept,  by written agreement  reasonably  satisfactory to
Shared Technologies,  full and unconditional  liability for such claim and agree
to  assume  the  defense   thereof   and  full   responsibility   therefor   (an
"Assumption").  The foregoing  provisions  notwithstanding,  in the event that a
Pledge  Notice has been  delivered as to which Pledgor has not yet responded and
the Notice Period has not yet expired, such claims shall be subject to the terms
of the  proviso  of the  preceding  sentence  until the  earlier to occur of the
payment by Pledgor of the  Undisputed  Claim  Amount or  delivery  by Pledgor to
Shared Technologies of an Assumption.

                  SECTION 8.  Continuing  Security  Interest;  Assignment.  This
Agreement shall create a continuing  security interest in the Pledged Shares and
shall (i) be binding upon Pledgor,  its successors and assigns,  and (ii) inure,
together with the rights





                                       -5-


and  remedies  of each of Pledgee  and  Shared  Technologies  hereunder,  to the
benefit  of each  of  Pledgee  and  Shared  Technologies  and  their  respective
successors,  transferees  and  assigns;  no  other  Person  (including,  without
limitation, any other creditor of Pledgor or Shared Technologies) shall have any
interest herein or any right or benefit with respect hereto.

                  SECTION 9.  GOVERNING  LAW;  TERMS.  THIS  AGREEMENT  SHALL BE
GOVERNED BY, AND SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF
THE STATE OF NEW YORK, WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAWS, EXCEPT
TO  THE  EXTENT  THAT  THE  VALIDITY  OR  PERFECTION  OF THE  SECURITY  INTEREST
HEREUNDER,  OR REMEDIES  HEREUNDER,  IN RESPECT OF ANY  PARTICULAR  PROPERTY ARE
GOVERNED BY THE LAWS OF A JURISDICTION OTHER THAN THE STATE OF NEW YORK.

                  SECTION 10. Severability of Provisions.  Any provision of this
Agreement which is prohibited or unenforceable in any jurisdiction  shall, as to
such  jurisdiction,  be  ineffective  to  the  extent  of  such  prohibition  or
unenforceability   without  invalidating  the  remaining  provisions  hereof  or
affecting  the  validity  or  enforceability  of  such  provision  in any  other
jurisdiction.

                  SECTION 11. Execution in Counterparts.  This Agreement and any
amendments,  waivers,  consents  or  supplements  hereto may be  executed in any
number of counterparts and by different parties hereto in separate counterparts,
each of which when so executed and delivered  shall be deemed to be an original,
but all such counterparts together shall constitute one and the same agreement.

                  SECTION 12.  Headings.   The  Section  headings  used  in this
Agreement  are for  convenience  of  reference  only and  shall not  affect  the
construction of this Agreement.

                  SECTION 13. Arbitration. Any controversy,  dispute or question
arising out of or in  connection  with this  Agreement,  or the  interpretation,
performance or non-performance of this Agreement or any breach hereof,  shall be
determined by arbitration held in New York, in accordance with the then existing
rules of the  American  Arbitration  Association.  Any decision or award of such
arbitration  shall be final,  conclusive  and  binding  on the  parties  hereto.
Nothing  contained  herein shall in any way deprive either party of its right to
obtain  injunctions or other  equitable  relief,  including  preliminary  relief
pending  arbitration.  All costs and  expenses  (including  counsel  and  expert
witness fees)  associated with any such  arbitration  shall be paid by the party
adjudged by the arbitrator to be responsible  for the costs.  Any award rendered
by an arbitrator shall be enforceable in any court of competent jurisdiction.





                                       -6-



                  SECTION  14.  Pledgee.  Shared  Technologies  hereby  appoints
Gadsby & Hannah as its agent to act as its  pledge  agent  with  respect  to the
Pledged Collateral pursuant to this Agreement.  The actions of Pledgee hereunder
are subject to the  provisions of this  Agreement.  Pledgee shall have the right
hereunder  to make  demands,  to give  notices,  to  exercise  or  refrain  from
exercising  any rights,  and to take or refrain from taking  action  (including,
without  limitation,  the release or  substitution  of Pledged  Collateral),  in
accordance  with  this  Agreement.  Pledgee  may  resign as long as  Pledgee  is
replaced by a  successor  Pledgee  approved by Pledgor and Shared  Technologies.
Upon the acceptance of any appointment as Pledgee by a successor  Pledgee,  that
successor  Pledgee  shall  thereupon  succeed to and become  vested with all the
rights,  powers,  privileges  and  duties of the  retiring  Pledgee  under  this
Agreement,  and the retiring  Pledgee  shall  thereupon be  discharged  from its
duties  and  obligations  under this  Agreement.  After any  retiring  Pledgee's
resignation,  the provisions of this Agreement  shall inure to its benefit as to
any actions taken or omitted to be taken by it under this Agreement while it was
Pledgee.

                  SECTION 15.  Notices.

                  (a) Any notice or  communication  to any party hereto shall be
duly given if in writing and  delivered  in person or mailed by first class mail
(registered or certified, return receipt requested),  facsimile or overnight air
courier guaranteeing next day delivery to such other party's address.

                  If to RHI Holdings, Inc.:

                           300 West Service Road
                           P.O. Box 10803
                           Chantilly, VA  22001
                           Facsimile No.:  (703) 888-5674
                           Attention:  Donald Miller, Esq.

                           with a copy to:

                           James J. Clark, Esq.
                           Cahill Gordon & Reindel
                           80 Pine Street
                           New York, NY  10005
                           Facsimile No.:  (212) 269-5420






                                       -7-


                  If to Shared Technologies Inc.:

                           100 Great Meadow Road, Suite 104
                           Wethersfield, CT  06109
                           Facsimile No.:  (203) 258-2401
                           Attention:  Legal Department

                           with a copy to:

                           Walter D. Wekstein, Esq.
                           Harold J. Carroll, Esq.
                           Gadsby & Hannah
                           125 Summer Street
                           Boston, MA  02110
                           Facsimile No.:  (617) 345-7050

                  If to Gadsby & Hannah:

                           125 Summer Street
                           Boston, MA  02110
                           Facsimile No.:  (617) 345-7050

                           Walter D. Wekstein, Esq.
                           Harold J. Carroll, Esq.
                           Gadsby & Hannah
                           125 Summer Street
                           Boston, MA  02110
                           Facsimile No.:  (617) 345-7050

                  (b) All notices and communications will be deemed to have been
duly  given:  at the time  delivered  by hand,  if  personally  delivered;  five
business days after being  deposited in the mail, if mailed;  when sent, if sent
by facsimile; and the next business day after timely delivery to the courier, if
sent by overnight air courier guaranteeing next day delivery.

                  SECTION 16. Entire Agreement.  This Agreement  constitutes the
entire agreement among the parties with respect to the subject matter hereof and
supersedes all other prior agreements and understandings, both written and oral,
between the parties with respect to the subject matter hereof.





                                       -8-

                  IN WITNESS  WHEREOF,  Pledgor has caused this  Agreement to be
executed and delivered by its duly authorized officer as of the date first above
written.

                               RHI HOLDINGS, INC.,
                                 as Pledgor


                               By: /s/ John Flynn
                                   ----------------------
                                     Name:
                                     Title:

                               GADSBY & HANNAH
                                 as Pledgee


                               By: /s/ Marianne Gilleran
                                   ----------------------
                                     Name:
                                     Title:

                               SHARED TECHNOLOGIES INC.


                               By: /s/ Vincent DiVincenzo
                                   ----------------------
                                     Name:
                                     Title:





                                   SCHEDULE I


                                 Pledged Shares



                                           CLASS                          PAR               CERTIFICATE                  NUMBER
ISSUER                                     OF STOCK                       VALUE                NO(S).                   0F SHARES
- ------                                     --------                       -----                ------                   ---------

                                                                                                                  
Shared Technologies                        Series I 6%                    $.01                       1                    235,000
Fairchild Inc.                             Cumulative
                                           Convertible
                                           Preferred

Shared Technologies                        Series                         $.01                       1                    200,000
Fairchild Inc.                             Special
                                           Preferred