3-Com Phone Sennheiser Headset Compatibility List

3-COM Phones

Phone Type	Direct Cable	Additional Requirement
NBX 100 Business Telephone NBX 1102 (3C10121), (3C10122) NBX 2101B (3C10248B) NBX 2101PE (3C10248PE) NBX 2102 (3C10226A)	CSTD 24	UI 710
Basic 3101 (3C10401A)	CSTD 01	UI 710
Business Phone NBX 3102 (3C10402A)	CSTD 01
Manager Phone NBX 3103 (3C10403A)	CSTD 01
Cordless Sets:
3106 (3C10406A),  3107 (3C10407A)	CCEL 190-2