Plantronics Compatible Center Universal Cord SC-100PQDRJ:

Simple 8-position slide adjustment & Standard RJ connector, Connects to almost all desk phones using a standard modular plug.

Plantronincs Compatible Quick Disconnect plug, Works with any Plantronics or Comfortcomms headset equipped with Quick Disconnect.

Built-in low-current microphone amplifer,Enables perfect operation with phones that require extra signal gain such as Cisco, Panasonic, Nortel, and Avaya, plus many IP phones.

Built in Speaker Volume Control & Microphone Mute Function, Durable Coiled Cable

8-position configurations:

1 Standard (most common) M-, R, R, M+
2 Cisco IP phones 79xx series R, M-, M+, R
3 Ascom offce and Philips phones R, M+, M-, R
4 Japanese phones, NEC, Nitsuko M+, R, R, M-
5 Plantronics Vista Base R, R, M+, M-
6 Panasonic phones with modular plug M+, R, R, M-
7 Nortel digital phones and Avaya IP phones M-, R, R, M+
8 Avaya Callmaster V and VI, Cisco R, M-, M+, R