SC TO-T/A

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE TO

TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1)
OF THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 10)

Wavecom S.A.

(Name of Subject Company (Issuer))

Sierra Wireless France SAS
(Offeror)
an indirect wholly-owned subsidiary of
Sierra Wireless, Inc.
(Parent of Offeror)

(Names of Filing Persons (Identifying Status as Offeror, Issuer or Other Person))

Ordinary Shares, nominal value €1 each
and
American Depositary Shares, each representing one ordinary share

(Title of Class of Securities)

Ordinary Shares (FR0000073066)
American Depositary Shares (943531103)

(CUSIP Number of Class of Securities)

David G. McLennan
Chief Financial Officer
Sierra Wireless, Inc.
13811 Wireless Way
Richmond, BC V6V 3A4
+1 (604) 231-1100

(Name, address (including zip code) and telephone number (including area code) of
person(s) authorized to receive notices and communications on behalf of filing person)

With copies to:

Scott Sonnenblick	Jocelyn Kelley
Linklaters LLP	Blake, Cassels & Graydon LLP
1345 Avenue of the Americas	595 Burrard Street
New York, NY 10105	P.O. Box 49314
+1 (212) 903-9000	Suite 2600, Three Bentall Centre
	Vancouver BC V7X 1L3
	+1 (604) 631-3300

(Name, Address and Telephone Numbers of Persons Authorized to Receive Notices and Communications
on Behalf of Filing Persons)

CALCULATION OF FILING FEE

Transaction Valuation (1)	Amount of Filing Fee (2)
U.S.$59,745,021	U.S.$2,348

(1)

Estimated solely for purposes of calculating the filing fee. The Transaction Valuation was calculated on the basis of (i) the offer price of (x) €8.50 for each of the 579,559 ADSs outstanding as of January 5, 2009; (y) €8.50 for each of the 2,849,134 Shares estimated to be held by U.S. holders as of December 15, 2008 within the meaning of Rule 14d-1(d) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”); (z) €31.93 plus unpaid accrued interest for each of the 462,939 OCEANEs estimated to be held by U.S. holders as of December 15, 2008; and (ii) an exchange rate (using the noon buying rate in New York City for cable transfers in euro as certified for customs purposes by the Federal Reserve Bank of New York on January 5, 2009) of $1.36 for one euro. The number of Shares and OCEANEs estimated to be held by U.S. holders is based on an assumption, made solely for purposes of calculating the filing fee, that 18% of the 15,828,524 outstanding Shares, as of December 15, 2008, and 18% of the 2,571,884 outstanding OCEANEs, as of December 15, 2008, are each held by U.S. holders and that, for purposes of calculating the amount of unpaid accrued interest only, settlement for the OCEANEs will occur on March 5, 2009.

(2)

The amount of the filing fee, calculated in accordance with Rule 0-11 under the Exchange Act and Fee Rate Advisory No. 6 for the fiscal year 2009, equals U.S.$39.30 per U.S.$1,000,000 of transaction valuation.

þ Check the box if any part of the fee is offset as provided by Rule 0-11(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

Amount Previously Paid: $2,348	Filing Party: Sierra Wireless France SAS
Form or Registration No.: SC TO-T	Date Filed: January 8, 2009

o Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer.

Check the appropriate boxes below to designate any transactions to which the statement relates:

þ third-party tender offer subject to Rule 14d-1.

o issuer tender offer subject to Rule 13e-4.

o going-private transaction subject to Rule 13e-3.

o amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results of the tender offer:    o

If applicable, check the appropriate box(es) below to designate the appropriate rule provision(s) relied upon:

o Rule 13e-4(i) (Cross-Border Issuer Tender Offer)

þ Rule 14d-l(d) (Cross-Border Third-Party Tender Offer)

TABLE OF CONTENTS

	Item 12. Exhibits
SIGNATURE
EX-99.A.5.VI: PRESS RELEASE

     This Amendment No. 10 to Schedule TO amends and supplements the Tender Offer Statement on Schedule TO (as previously amended, the “Schedule TO”) originally filed with the Securities and Exchange Commission on January 8, 2009 by Sierra Wireless France SAS, a société par actions simplifiée organized under the laws of France (“Purchaser”), and an indirect wholly-owned subsidiary of Sierra Wireless, Inc., a Canadian corporation, relating to the offer to purchase all outstanding Wavecom shares, nominal value €1.00 (“Shares”), all outstanding Wavecom American Depositary Shares, each representing one Share (“ADSs”), and all outstanding bonds convertible and/or exchangeable for newly issued or existing Shares by option (obligations à options de conversion et/ou d’échange en actions nouvelles ou existantes) (the “OCEANEs”), through concurrent offers in the United States (the “U.S. Offer”) and France (the “French Offer”, and together with the U.S. Offer, the “Offers”). In the U.S. Offer, Purchaser is seeking to purchase all outstanding Shares and OCEANEs held by U.S. holders, within the meaning of Rule 14d-1(d) under the Exchange Act, and all outstanding ADSs wherever the holder is located, on the terms and conditions set forth in the U.S. Offer to Purchase, dated January 8, 2009 (the “U.S. Offer to Purchase”) and the related ADS letter of transmittal and forms of acceptance for Shares and OCEANEs.

     Except as specifically set forth herein, this Amendment No. 10 does not modify any of the information previously reported on Schedule TO. Capitalized terms used and not otherwise defined in this Amendment No. 10 shall have the meanings ascribed to them in the U.S. Offer to Purchase.

     The U.S. Offer to Purchase, including Schedule A thereto, is hereby incorporated by reference in response to all items of this Schedule TO, except that such information is hereby amended and supplemented to the extent specifically provided herein.

Item 12.    Exhibits.

   Item 12 of the Schedule TO is hereby amended and supplemented to add the following exhibit:

Exhibit	Exhibit Name
(a)(5)(vi)	Press release, dated March 11, 2009.

SIGNATURE

     After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Sierra Wireless France SAS
By	/s/ Luc Faucher
	Name: Luc Faucher
	Title: President
	Date: March 11, 2009
Sierra Wireless, Inc.
By	/s/ Jocelyn Chang
	Name: Jocelyn Chang
	Title: Vice President, Finance
	Date: March 11, 2009

Exhibit	Exhibit Name
(a)(1)(i)	U.S. Offer to Purchase dated January 8, 2009.*
(a)(1)(ii)	Form of ADS letter of transmittal.*
(a)(1)(iii)	Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees (ADSs).*
(a)(1)(iv)	Form of Letter to Clients for use by Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees (ADSs).*
(a)(1)(v)	Form of form of acceptance for Shares.*
(a)(1)(vi)	Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees (Shares).*
(a)(1)(vii)	Form of Letter to Clients for use by Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees (Shares).*
(a)(1)(viii)	Form of form of acceptance for OCEANEs.*
(a)(1)(ix)	Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees (OCEANEs).*
(a)(1)(x)	Form of Letter to Clients for use by Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees (OCEANEs).*
(a)(1)(xi)	Guidelines for Certification of Taxpayer Identification Number (TIN) on Substitute Form W-9.*
(a)(1)(xii)	Summary Advertisement as published in The New York Times on January 8, 2009.*
(a)(2)	Not applicable.
(a)(3)	Not applicable.
(a)(4)	Not applicable.
(a)(5)(i)	Press release, dated January 14, 2009.**
(a)(5)(ii)	Interview transcript, dated January 21, 2009.***
(a)(5)(iii)	Press release, dated February 18, 2009.******
(a)(5)(iv)	Press release, dated February 25, 2009.*******
(a)(5)(v)	Press release, dated March 2, 2009.********
(a)(5)(vi)	Press release, dated March 11, 2009.
(b)	Credit Agreement by and among Parent, Toronto-Dominion Bank, Canadian Imperial Bank of Commerce, TD Securities, and CIBC World Markets, dated December 1, 2008.*
(d)(i)	Memorandum of Understanding between Parent and Wavecom, dated December 1, 2008.*
(d)(ii)	Confidentiality Agreement between Parent and Wavecom, dated October 24, 2008.*

Exhibit	Exhibit Name
(d)(iii)	Undertaking to tender between Parent and Michel Alard, dated December 1, 2008.*
(d)(iv)	Undertaking to tender between Parent and Aram Hékimian, dated December 1, 2008.*
(d)(v)	Undertaking to tender between Purchaser and Kap Holding SAS, dated January 28, 2009.****
(d)(vi)	Amendment to Undertaking to Tender between Michel Alard and Purchaser, dated February 4, 2009.*****
(d)(vii)	Undertaking to Tender between 3D Web and Purchaser, dated February 4, 2009.*****
(d)(viii)	Separation Agreement by and among Ronald Black, Purchaser, Wavecom and Wavecom, Inc., dated March 6, 2009.*********
(d)(ix)	Securities and Rights Agreement by and among Ronald Black, Purchaser and Wavecom, dated March 6, 2009.*********
(g)	Not applicable.
(h)	Not applicable.

*	Previously filed on January 8, 2009
**	Previously filed on January 14, 2009
***	Previously filed on January 23, 2009
****	Previously filed on January 29, 2009
*****	Previously filed on February 6, 2009
******	Previously filed on February 18, 2009
*******	Previously filed on February 25, 2009
********	Previously filed on March 2, 2009
*********	Previously filed on March 9, 2009

EX-99.A.5.VI

Exhibit (a)(5)(vi)

News Release

Contact:

Sharlene Myers	Lisa Ann Sanders
Sierra Wireless	Wavecom
Phone: +1 (604) 232-1445	Phone: +33 1 46 29 41 81
Email: smyers@sierrawireless.com	Email: lisaann.sanders@wavecom.com

Subsequent Offering Period Opens in France and the US

Vancouver, Canada and Issy-les-Moulineaux, France — March 11, 2009 — Sierra Wireless (NASDAQ: SWIR - - TSX: SW), a leading provider of wireless solutions for mobile computing, and Wavecom (Paris: AVM — NASDAQ: WVCM), a leading provider of embedded wireless technology for M2M (machine-to-machine) communication, confirmed today that, as previously announced, the subsequent offering period of the all-cash tender offers of Sierra Wireless France, a wholly owned subsidiary of Sierra Wireless, Inc., for Wavecom securities in France (the “Offer”) and the United States (the “U.S. Offer”) (together with the Offer, the “Offers”) opened today and will close on March 31, 2009. Sierra Wireless France has irrevocably undertaken to accept all ordinary shares, American Depositary Shares (“ADSs”) and OCEANEs tendered in the subsequent offering period. The offer price for the ordinary shares is €8.50 per share, and the offer price for the OCEANEs is €31.93 plus unpaid accrued interest (calculated pro rata to the number of days from the last interest payment date to the day of settlement for the OCEANEs) per OCEANE. The offer price for the ADSs is the US dollar equivalent of €8.50 per ADS.

Shortly after the closing of the subsequent offering period, provided applicable legal requirements are satisfied, Sierra Wireless France intends to implement a squeeze-out of the shares and OCEANEs that have not been tendered to the offers and to request the delisting of Wavecom shares and OCEANEs from Euronext and ADSs from NASDAQ.

About Sierra Wireless

Global Leader in Wireless Solutions for Mobile Computing and M2M
Sierra Wireless (NASDAQ: SWIR — TSX: SW) modems and software connect people and systems to mobile broadband networks around the world. Sierra Wireless offers a diverse product portfolio addressing enterprise, consumer, original equipment manufacturer, specialized vertical industry, and machine-to-machine markets, and provides professional services to customers requiring expertise in wireless design, integration, and carrier certification. For more information about Sierra Wireless, visit www.sierrawireless.com.

About Wavecom

Wavecom — The Wireless M2M Experts

Wavecom is a leading provider of embedded wireless technology for M2M (machine-to-machine) communication. Wavecom provides a range of GSM/GPRS, CDMA, EDGE and 3G Wireless CPUs; programmable processors which also act as wireless modules or wireless modems. These are backed by a cellular wireless software suite which includes a real-time operating system (RTOS), a software development environment based on Eclipse™, and several Plug-Ins (GPS, TCP/IP, security, Bluetooth™, Lua script and more). Wavecom also offers a wide range of professional and operated services. Wavecom solutions are used for automotive telematics, smart metering, fleet management, GSM/GPS/satellite tracking, wireless alarms, wireless POS (point of sales), WLL (fixed voice), remote monitoring and many other M2M applications. Founded in 1993 and headquartered in Issy-les-Moulineaux (France) near Paris, Wavecom has subsidiaries in Hong Kong (PRC), Research Triangle Park, NC (USA), Farnborough (UK), Munich (Germany) and Sao Paolo (Brazil). Wavecom is publicly traded on Euronext Paris (Eurolist) in France and on the NASDAQ (WVCM) exchange in the U.S.

Further Information

The tender offers described here are being made for the ordinary shares, the ADSs and OCEANEs of Wavecom. This press release is for informational purposes only and is not an offer to buy or the solicitation of an offer to sell any Wavecom securities. The solicitation and the offer to buy the shares, ADSs and OCEANEs of Wavecom is being made only pursuant to the offer to purchase and related materials that Sierra Wireless France filed with the AMF or the U.S. Securities and Exchange Commission (the “SEC”). Wavecom security holders and other investors should read carefully the filed documents listed below, and any amendments or supplements thereto, prior to making any decisions with respect to the tender offers because these documents contain, or will contain, important information, including the terms and conditions of the tender offers.

Copies of the note d’information approved by the AMF under visa no. 09-002 dated January 6, 2009, as well as the “other information document,” are available on the Sierra Wireless, Inc. website (www.sierrawireless.com) and the AMF website (www.amf-france.org) and can be obtained for free from Lazard Frères Banque, 121 boulevard Haussmann, 75008 Paris.

Copies of the note en réponse approved by the AMF under visa no. 09-003 dated January 6, 2009, as well as the “other information document,” are available on the Wavecom website (www.wavecom.com) and the AMF website (www.amf-france.org) and can be obtained for free from Wavecom, 3, esplanade du Foncet, 92442 Issy-les-Moulineaux and Merrill Lynch Capital Markets (France) SAS, 112, avenue Kléber, 75761 Paris.

Copies of the Tender Offer Statement on Schedule TO filed by Sierra Wireless France and the Schedule 14D-9 filed by Wavecom, are available from the SEC’s website (www.sec.gov). Such materials filed by Sierra Wireless France and Wavecom are also available for free on the websites of Sierra Wireless, Inc. (www.sierrawireless.com) and Wavecom (www.wavecom.com).

Wavecom security holders and other investors can obtain copies of these tender offer materials and any other documents filed with the AMF from the AMF’s website (www.amf-france.org.), and with the SEC, from the SEC’s website (www.sec.gov), in each case without charge. Such materials filed by Sierra Wireless France will also be available for free at Sierra Wireless’ website (www.sierrawireless.com).

Cautionary Note Regarding Forward-Looking Statements

Certain statements in this press release that are not based on historical facts constitute forward-looking statements or forward-looking information within the meaning of the U.S. Private Securities Litigation Reform Act of 1995 and applicable Canadian and French securities laws (“forward-looking statements”). These forward-looking statements are not promises or guarantees of future performance but are only predictions that relate to future events, conditions or circumstances or our future results, performance, achievements or developments and are subject to substantial known and unknown risks, assumptions, uncertainties and other factors that could cause our actual results, performance, achievements or developments in our business or in our industry to differ materially from those expressed, anticipated or implied by such forward-looking statements. Forward-looking statements in this press release include statements relating to the offers for the ordinary shares, the ADSs, and the OCEANEs of Wavecom and the results of such offers, the combined company’s future business prospects and projected position in the wireless data and M2M markets, the outlook for the combined company’s future operations, plans and timing for the introduction or enhancement of its services and products, strategies or developments, future market conditions and supply conditions. We caution you not to place undue reliance upon any such forward-looking statements, which speak only as of the date they are made. These forward-looking statements appear in a number of different places in this press release and can be identified by words such as “may,” “estimates,” “projects,” “expects,” “intends,” “believes,” “plans,” “anticipates,” “continue,” “growing,” “expanding,” or their negatives or other comparable words. The risk factors and uncertainties that may affect our actual results, performance, achievements or developments are many and include, amongst others, our ability to develop, manufacture, supply and market new products that we do not produce today that meet the needs of customers and gain commercial acceptance, our reliance on the deployment of next generation networks by major wireless operators, the continuous commitment of our customers, and increased competition. These risk factors and others are discussed in Sierra Wireless’ and Wavecom’s respective filings and reports, which may be found on SEDAR at www.sedar.com, on EDGAR at www.sec.gov, on the AMF’s website at www.amf-france.org, and in each of their other regulatory filings with the AMF in France, the SEC in the United States and the Provincial Securities Commissions in Canada. Many of these factors and uncertainties are beyond our control. Consequently, all forward-looking statements in this press release are qualified by this cautionary statement and we cannot assure you that actual results, performance, achievements or developments that we anticipate will be realized. Forward-looking statements are based on management’s current plans, estimates, projections, beliefs and opinions and we do not undertake any obligation to update forward-looking statements should the assumptions related to these plans, estimates, projections, beliefs and opinions change, except as required by law.