66 Hardware optionsAccessory descriptionsHandset option for the M3905The M3905 set supports a non-amplified headset or amplified headsetusing the headset jack. The handset can be added to the M3905 set byremoving the front plate of the telephone. A handset kit is available for theM3905 set. The handset connects to the handset jack.Alternate key caps for the M3905The M3905 set provides an alternate key cap kit to customize thetelephone. Use the Key Cap Tool with the M3905 set to remove the fourmiddle programmable keys and replace them with alternate keys. Thealternate key caps include: answer emergency, answer agent, activity, callagent, observe agent, and display queue.Headset optionsThe M3901, M3902, M3904, and M3905 sets support an amplified headsetwhen the headset connects to the handset jack.The M3903, M3904, and M3905 sets have a dedicated headset jackwhich supports a non-amplified headset. The M3903, M3904, and M3905have a headset fixed feature key to turn the headset on and off. Table 16"Headset options" (page 66) shows headsets that have been tested withthe M3900 series sets.Table 16Headset optionsHeadset type ModelNon-amplified (to be usedwith Headset Key)• CPC# A0779338 Liberation 3-in-1 Direct Connect Headset(Unamplified)For use with the M3903, M3904, and M3905 sets. Plugs directlyinto the headset port. Includes three wearing styles: flexible boom,noise-cancelling microphone, wide screen and leatherette earcushion.Amplified (connected thoughthe handset jack for M3901 -M3904 sets and through theheadset jack on the M3905).• Wireless Amplified Headset• Liberation MPA I and II• Plantronics PolarisThe headsets are not offered by Nortel. The Plantronics isavailable through Plantronics Polaris. The Liberation is availablethrough GN Netcom, Inc.Nortel Communication Server 2100M3900 Series Meridian Digital Telephones User GuideNN42200-110 09.01 Standard20 August 2008Copyright © 2008 Nortel Networks.
