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Callback Allows you to request that the system notify you when a busy line becomes idle or when an unanswered station goes off-hook and on-hook.

A different feature, Callback 'System Programmable', Allows you to program the destination of a matured callback set against a key line or multi call line group.

January 2012: Telefonix Voice & Date and Mitel have parted company, and we no longer carry the Mitel telephone system, deepening our specialisation in Avaya IP500 instead. This leaves us, however, in an excellent position to compare the Mitel 3300 phone system and the Avaya IP Office phone system: please contact us using the web or on 01252 333888 if you wish to discuss these phone systems.

Mitel 3300 Phone System A-Z