SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.   )

Telesystem International Wireless Inc.
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(Name of Issuer)

Common Shares, without a par value
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(Title of Class of Securities)

879946606
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(CUSIP Number)

May 10, 2005
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(Date of Event which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this schedule is filed:

[   ]  Rule 13d-1(b)
[X]  Rule 13d-1(c)
[   ]  Rule 13d-1(d)

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*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act.

(Continued on following page(s))
Page 1 of 5 Pages

Item 1(a):         Name of Issuer:

Telesystem International Wireless Inc.

Item 1(b):         Address of Issuer's Principal Executive Offices:

                        1250 Rene-Levesque Boulevard West
                        38^th Floor
                        Montreal, Quebec
                        H3B 4W8
                        Canada

Item 2(a):         Name of Person Filing:

                        Canadian Imperial Bank Commerce

Item 2(b):         Address of Principal Business Office or, if none, Residence:

199 Bay Street
            Toronto, Ontario  M5L 1A2
            Canada

Item 2(c):         Citizenship:

Canada

Item 2(d):         Title of Class of Securities:

Common

Item 2(e):         CUSIP Number:

879946606

Item 3:              Not applicable

Item 4(a):         Amount Beneficially Owned: 

12,398,726

Item 4(b):         Percent of Class:

5.53%

Item 4(c):         Number of Shares as to Which Such Person Has:

(i)         Sole power to vote or direct the vote:

12,398,726            

(ii)        Shared power to vote or direct the vote:

            -0-      

(iii)       Sole power to dispose or direct the disposition of:

12,398,726           

(iv)       Shared power to dispose or direct the disposition of:

            -0-

Item 5:              Ownership of Five Percent or Less of a Class:

Not applicable             

Item 6:              Ownership of More than Five Percent on Behalf of Another Person:

Not applicable

Item 7:              Identification and Classification of the Subsidiary Which Acquired the Security Being
                        Reported on By the Parent Holding Company:

                        Not applicable

Item 8:              Identification and Classification of Members of the Group:

Not applicable

Item 9:              Notice of Dissolution of Group:

Not applicable

Item 10:            Certifications:

                         By signing below I certify that, to the best of my knowledge and belief, the securities referred to
                         above were not acquired and are not held for the purpose of or with the effect of changing or
                         influencing the control of the issuer of the securities and were not acquired and are not held in
                         connection with or as a participant in any transaction having that purpose or effect.

SIGNATURE

After reasonable 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.

Date:    May 20, 2005                                      CANADIAN IMPERIAL BANK OF COMMERCE

By:     /s/   Antonio Molestina                                                 
       Name:      Antonio Molestina
       Title:         Senior Vice President, Deputy General Counsel