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Power Failure Transfer Feature

Telephone Differences

Multiline Telephones

Multiline telephones cannot be used as power-failure telephones.

4400/4400D Telephones cannot be used as power-failure telephones.

Touch-Tone single-line telephones must be connected to PFT line/trunk jacks for Touch-Tone lines; rotary single-line telephones must be connected to PFT line/trunk jacks for rotary-dial lines.

 

Topics
	Description
	At a Glance
	Considerations & Constraints
	Telephone Differences
	Feature Interactions