| Company | Phone Number |
| Canpage Communications Ltd. (Cornwall, Ontario) |
613-938-3867 1-800-267-9132 |
| Canpage Communications Ltd. (Brockville, Ontario) |
613-345-5629 1-800-463-4364 |
| Christie and Walther Communications Limited (Ottawa, Ontario) |
613-739-3636 1-888-70RADIO |
| Christie and Walther Communications (Quebec) Inc. (Hull, Quebec) | 819-770-2010 |
| Christie and Walther TELECOM Inc. (Ottawa, Ontario) |
248-5600 |
| Christie and Walther TELECOM Inc.
(Gatineau, Québec) |
248-5600 |
| Metrolert Ltd. (Ottawa, Ontario) |
613-739-7243 |
| Petit Page Inc. Téléavertisseurs (Gatineau, Québec) |
819-561-3227 |
| Tordiff Communications Inc. (Brockville, Ontario) |
613-342-6005 1-800-665-9561 |
| Tordiff Communications Inc. (Kingston, Ontario) |
613-546-2416 |
| Tordiff Communications Inc. (Cornwall, Ontario) |
613-936-0731 1-800-864-7758 |