1. IBM Sametime Unified Telephony Headset RecommendationsSolution Name: Part #:Description:Voyager Pro UC v238885-01 Bluetooth solutionSavi Office Convertible79956-01 Dect 6.0 solutionSavi Office Over the Ear 79957-01 Dect 6.0 solutionSavi Office Over the Head81794-01 (monaural)Dect 6.0 solutionSavi Office Over the Head81802-01 (binaural)Dect 6.0 solutionSavi 430 Campus Mobility Solution82396-01 Dect 6.0 solutionBlackwire C210 80298-03 (monaural)Blackwire C220 80299-03 (binaural)Blackwire C420 82632-01 (binaural only)Blackwire C610 81964-41 (monaural)Blackwire C620 81965-41 (binaural)SupraPlus Headset (also requires DA45 or DA60) 64338-31 (monaural)SupraPlus Headset (also requires DA45 or DA60) 64339-31 (binaural)EncorePro Headset (also requires DA45 or DA60) 78712-01 (monaural)EncorePro Headset (also requires DA45 or DA60) 78714-01 (binaural)DA45 Adapter Cable (reqd for H-top headsets)77559-41DA60 Adapter Cable (reqd for H-top headsets)63725-01Calisto 42082136-01

2. Date: March 31, 2011For use with:PC, mobile device(s)PC, desk phonePC, desk phonePC, desk phonePC, desk phonePCPCPCPCPCPCPC, could also be used with desk phone if another adapter cable is usedPC, could also be used with desk phone if another adapter cable is usedPC, could also be used with desk phone if another adapter cable is usedPC, could also be used with desk phone if another adapter cable is usedPCPCPC