we are a supplier of hosted telephony, business telephone systems and it supportBT Kinsman Telephone System Maintenance
The SX20 was made by Mitel and marketed by many companies as the SX20, except BT who called it the Kinsman. The console is the same one used by the Mitel SX10E and although similar looking to that of the SX200 it is incompatible. The system will support LD and MF telephones with either earth or timed break recall. The BT Kinsman was withdrawn from BT's portfolio in 1988.
CAPACITY
The SX20 has a maximum configuration of 12 exchange lines and 72 extensions. These cannot be achieved at the same time due to the structure of the system and the real configuration could be described as either a maximum of 8+72 or 12+48 (this is described fully in the next chapter). The Superset 4 featurephone and 60 store repertory dial is only supported on software generic 543. A visually handicapped operator console is also available.
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