Cisco CP-7941G Unified IP VoIP Business Office Phone w/Base, Stand & Handset for Sale

Build Knoppix from sources
Is it possible to build Knoppix from source yourself and apply personal customisations? If yes, is there a HOWTO?

Cisco CP-7941G Unified IP VoIP Business Office Phone w/Base, Stand & Handset For Sale

Cisco CP-7941G Unified IP VoIP Business Office Phone w/Base, Stand & Handset.

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Unit has been tested and is in good working condition

Phones do have minor scratches as they are used.

If you have any further questions please let me know

Documentation