| Business | Phone |
| Avaya 4935 Place Olivia, Saint-Laurent H4R 2V6 | (514) 956-7200 |
| International Inc 4110 Boul Thimens, Saint-Laurent H4R 2B9 | (514) 332-7444 |
| Itelsa Ltee 2735 Rue Diab, Saint-Laurent H4S 1E7 | (514) 338-1918 |
| Madrid Communications Inc 3958 Boul Poirier, Saint-Laurent H4R 2J5 | (514) 339-2772 |
| Mind Ready Solutions Inc 2800 Av Marie-Curie, Saint-Laurent H4S 2C2 | (514) 339-1394 |
| Mitel Networks 1111 Boul Dr.-Frederik-Philips #500, Saint-Laurent H4M 2X6 | (514) 856-5588 |
| Nortel Networks 7055 Rue Alexander-Fleming, Saint-Laurent H4S 2B7 | (514) 818-1010 |
| Ovaltel Inc 7463 Rte Transcanadienne, Saint-Laurent H4T 1T3 | (514) 335-6993 |
| Plantronics Service Ctr 1455 Boul Pitfield, Saint-Laurent H4S 1G3 | (514) 956-8363 |
| Baven Telephonique Comm 3512 Rue Griffith, Saint-Laurent H4T 1A7 | (514) 342-3321 |
| Sti Svc Telecommunications 4008 Ch Du Bois-Franc, Saint-Laurent H4S 1A7 | (514) 332-3755 |
| Szeto Technologies Inc 2650 Rue Diab, Saint-Laurent H4S 1E8 | (514) 331-9152 |
| Tcs Tel-E Connect Systemes 6982 Ch De La Cote-De-Liesse, Saint-Laurent H4T 1Y5 | (418) 683-7333 |
| Tel Inc Communications 6969 Rte Transcanadienne #96, Saint-Laurent H4T 1V8 | (450) 331-5775 |
| Technologie Amtec 2920 Rue Diab, Saint-Laurent H4S 1M7 | (514) 338-3836 |
| Telefficacite-Telefficieny 3950 Rue Griffith, Saint-Laurent H4T 1A7 | (514) 336-6931 |
| Vsi Telecom Inc 3130 Rue De Miniac, Saint-Laurent H4S 1N5 | (514) 333-1500 |
| Communications Gh Inc 5405 Boul Thimens, Saint-Laurent H4R 2H4 | (514) 932-5943 |
| Communications Telinc Inc 6969 Rte Transcanadienne #123, Saint-Laurent H4T 1V8 | (514) 331-5775 |
| Communications Multinet 3590 Rue Griffith, Saint-Laurent H4T 1A7 | (514) 745-0000 |
| Communications Multinet 3950 Rue Griffith, Saint-Laurent H4T 1A7 | (514) 925-2421 |
| Comtel Imagerie Numerique 2685 Rue Diab, Saint-Laurent H4S 1E7 | (514) 906-0416 |