headset port pinout / details of a cisco ip phone

[dcharlier]

Hello,

We need to know the pin-out of the headset port of a Cisco IP Phone 7940 ?

Much appreciated.

Dirk

[Rob Huffman]

Hi Dirk,

I looked everywhere for these details to no avail :( Perhaps this older thread from Mikhail might be what you are looking for;

http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Unified%20Communications%20and%20Video&topic=IP%20Phone%20Services%20for%20End%20Users&CommCmd=MB%3Fcmd%3Dpass_through%26location%3Doutline%40%5E1%40%40.1dd6d59b/0#selected_message

Hope this helps!

Rob

[2smith · Accepted solution]

Dirk

I think you will find the info here

http://www.mml.uni-hannover.de/einhorn/headset/index_e.html

[Marcos Eusebio]

Hi

Is really sad, but the link that you posted doesn't exist any more.