| Business | Phone |
| Lde Telecommunications Inc 785 Av Plymouth #211, Mont-Royal H4P 1B3 | (514) 341-9900 |
| Michel Toledano Assoc 8180 Ch Devonshire, Mont-Royal H4P 2K3 | (514) 344-5171 |
| Sipro Lab Telecom 750 Ch Lucerne, Mont-Royal H3R 2H6 | (514) 737-5874 |
| Bzaat Canada Inc 5475 Av Royalmount, Mont-Royal H4P 1J3 | (514) 341-2225 |
| Communication Ericsson Inc 8400 Boul Decarie, Mont-Royal H4P 2N2 | (514) 738-8300 |