This cord allows you to easily convert a dual 3.5mm plug PC headset to a RJ-9 modular plug to make it compatible with most office phone systems. You can use your favorite PC Multimedia Headset for your Nortel, 3Com or other phone that uses a RJ-9 modular headset input.
Compatibility
Phones
► Nortel/Meridian M39xx, M53xx, M80xx-series phones
► Nortel / Meridian / Norstar T72xx, T73xx, M73xx-series phones
► Nortel 1120E, 1140E, 1150E IP phones
► Nortel i2002 and i2004 IP phones
Headset
► PC Multimedia Headset with two 3.5mm audio plugs (except USB headsets)
► PC Speakers and Microphone with 3.5mm audio plugs
Specification
► Cable Length: 1 feet
► Phone Plug: RJ-9 modular plug (same size as a handset cable connector)
► Headset Plug: Two 3.5mm 3-conductors jacks (see photo for reference)