This User’s Guide is for the following system:

DXP, DXP Plus, FXS and FXT

Digital Communication Systems.

This user’s guide applies to the following telephone models:

Impact SCS 8412F-** Rev. A and later.

Impact SCS 8412S-** Rev. A and later.

Impact SCS 8412FJ-**Rev. A and later.

Impact SCS 8412SJ-**Rev. A and later.

Contact your Comdial dealer for updates of this as well as other Comdial publications.

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Vertical Communications FXS, and FXT manual This User’s Guide is for the following system