Mitel Superset is a line of telephones made by Mitel. The line began in 1983, with the Superset 4, Mitel's best-selling device to date. The Superset 4DN...
3 KB (243 words) - 20:59, 12 September 2023
[citation needed] In the meantime, Mitel continued to diversify its product line, introducing the successful SUPERSET line of phone terminals, the GX5000...
26 KB (2,229 words) - 04:55, 26 July 2024