EXHIBIT 3.6 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF PORTACOM WIRELESS, INC., A DELAWARE CORPORATION FIRST: The name of this corporation is PortaCom Wireless, Inc. SECOND: Its Registered Office in the State of Delaware is to be located at 9 East Loockerman Street, in the City of Dover, County of Kent, 19901. The Registered Agent in charge thereof is National Registered Agents, Inc. THIRD: The purpose of the corporation is to engage in any lawful act or activity for which a corporation may be organized under the General Corporation Law of Delaware. FOURTH: The aggregate number of shares which the Corporation shall have authority to issue is One Hundred and Five Million (105,000,000), divided into One Hundred Million (100,000,000) shares of common stock of the par value of $.001 per share, and Five Million (5,000,000) shares of preferred stock of the par value of $.001 per share. FIFTH: The Board of Directors is authorized, subject to limitations prescribed by law and the provisions of the Article FOURTH, to provide for the issuance of the shares of Preferred Stock in series, and by filing a certificate pursuant to the applicable law of the State of Delaware, to establish from time to time the number of shares to be included in each such series, and to fix the designation, powers, preferences and rights of the shares of each such series and the qualifications, limitations or restrictions thereof. The authority of the Board with respect to each series shall include, but not be limited to, determination of the following: a) The number of shares constituting that series and the distinctive designation of that series; b) The dividend rate on the shares of that series, whether dividends shall be cumulative, and, if so, from which date or dates, and the relative rights of priority, if any, of payment of dividends on shares of that series; c) Whether that series shall have voting rights, in addition to the voting rights provided by law, and, if so, the terms of such voting rights; d) Whether that series shall have conversion privileges, and, if so, the terms and conditions of such conversion, including provision for adjustment of the conversion rate in such events as the Board of Directors shall determine; e) Whether that series shall have conversion privileges, and, if so, the terms and conditions of such conversion, including provision for adjustment of the conversion rate in such events as the Board of Directors shall determine; f) Whether that series shall have a sinking fund for the redemption or purchase of shares of that series, and, if so, the terms and amount of such sinking fund; g) The rights of the shares of that series in the event of voluntary or involuntary liquidation, dissolution or winding up of the corporation, and the relative rights of priority, if any, of payment of shares of that series; h) Any other relative rights, preferences and limitations of that series. Dividends on outstanding shares of Preferred Stock shall be paid or declared and set apart for payment on the common shares with respect to the same dividend period. If upon any voluntary or involuntary liquidation, dissolution or winding up of the corporation, the assets available for distribution to holders of shares of Preferred Stock of all series shall be insufficient to pay such holders the full preferential amount to which they are entitled, then such assets shall be distributed ratably among the shares of all series of Preferred Stock in accordance with the respective preferential amounts (including unpaid cumulative dividends, if any) payable with respect thereto. SIXTH: The name and mailing address of the incorporator are as follows: NAME MAILING ADDRESS S. A. Morgan Irell & Manella Suite 900 1800 Avenue of the Stars Los Angeles, CA 90067 SEVENTH: The duration of the corporation shall be perpetual. EIGHTH: When a compromise or arrangement is proposed between the corporation and its creditors or any class of them or between the corporation and its shareholders or any class of them, a court of equity jurisdiction within the state, on application of the corporation or of a creditor or shareholder thereof, or on application of a receiver appointed for the corporation pursuant to provisions of Section 291 of Title 8 of the Delaware Code or on application of trustees in dissolution or of any receiver or receivers appointed for the corporation pursuant to provisions of Section 279 of Title 8 of the Delaware Code order a meeting of the creditors or class of creditors or of the shareholders or class of shareholders to be affected by the proposed compromise or arrangement or reorganization, to be summoned in such manner as the court directs. If a majority in number representing 3/4 in value of the creditors or class of creditors, or of the shareholders or class of shareholders to be affected by the proposed compromise or arrangement or a reorganization, agree to a compromise or 2 arrangement or a reorganization of the corporation as a consequence of the compromise or arrangement or reorganization, the compromise or arrangement and the reorganization, if sanctioned by the court to which the application has been made, shall be binding on all the creditors or class of creditors, or on all the shareholders or class of shareholders and also on the corporation. NINTH: The personal liability of all of the directors of the corporation is hereby eliminated to the fullest extent allowed as provided by the Delaware General Corporation Law, as the same may be supplemented and amended. TENTH: The corporation shall, to the fullest extent legally permissible under the provisions of the Delaware General Corporation Law, as the same may be amended and supplemented, shall indemnify and hold harmless any and all persons whom it shall have power to indemnify under said provisions from and against any and all liabilities (including expenses) imposed upon or reasonably incurred by him in connection with any action, suit or other proceeding in which he may be involved or with which he may be threatened, or other matters referred to in or covered by said provisions both as to action in his official capacity and as to action in another capacity while holding such office, and shall continue as to a person who has ceased to be a director or officer of the corporation. Such indemnification provided shall not be deemed exclusive of any other rights to which those indemnified may be entitled under any Bylaw, Agreement or Resolution adopted by the shareholders entitled to vote thereon after notice. ELEVENTH: The Board of Directors may adopt, amend or repeal the Bylaws of this corporation. 3