Do Cisco IP Phone 7942 come with head phone or which third party head is best to use with 7942 IP Phone
The phones do not come with Headsets sadly. We use many Plantronics corded models like the H-91, H-101, **H-171's. The one part you will need which is required for all "corded" Plantronics Headsets (to go from Headset Jack on 7970 to "Quick Disconnect" on Headset) is a special Cord (shown below);
If these are Cordless Headsets we like the CS-55 or CS-70 Series
Look in this section for a complete list;
Find My Headset (choose Cisco and IP Phone Model)
You may want to look at a great new method of using Wireless Headsets that Plantronics and Cisco have developed that work with the 7942/7945, 7962/7965 and 7975 IP Phones only so far. The Plantronics HHC adapter enables hookswitch control and ***ring detection for CS50, CS55, CS60, CS70, CS70N, CS351N, CS361N and V510S wireless headsets, eliminating the need for a an HL10 lifter.)
With the use of an Adaptor Part # APC-4 (called the HHC Adaptor) which plugs into the Aux Port on the base of the phone allows calls to be answered and disconnected via the Headset without the use of the Lifter!
You can't believe how well this new setup works :)
HHC adapter (APC-4) Product Information
Hope this helps!