June 9, 2005
| Nova Scotia Securities Commission | Securities Commission of Newfoundland and Labrador | |
| Alberta Securities Commission | Saskatchewan Financial Services Commission, Securities Division | |
| The Manitoba Securities Commission | Office of the Administrator of the Securities Act, New Brunswick | |
| Ontario Securities Commission | British Columbia Securities Commission | |
| Registrar of Securities, Prince Edward Island | Autorité des marchés financiers |
Dear Sirs:
RE: CALL-NET ENTERPRISES INC.
The following were sent by prepaid mail to all registered shareholders of the above-mentioned Company on June 9, 2005:
X Proxy — New Class B Non-Voting
X Proxy — New Common
X Notice of Amendment to Management Proxy Circular
X Reminder Notice
However, we have not mailed to shareholders in cases where on three consecutive occasions, notices or other documents have been returned undelivered by the Post Office.
The above disclosure document(s) are filed with you as agent for the Company in compliance
with the regulations.
Yours very truly,
CIBC MELLON TRUST COMPANY
Vijaya Murugaanandan
Administrator, Client Services
Direct Dial: (416) 643-5567
cc: janice.spencer@sprint-canada.com
cc: cacook@goodmans.com
pk\CM_CallNet
320 Bay Street, P.O. Box 1 • Toronto, ON M5H 4A6 • Tel 416.643.5000 •www.cibcmellon.com
CIBC Mellon Trust Company is a licensed user of the CIBC and Mellon trademarks