How do I set up music (radio from my pc) using headphones on my Nortel Networks phone, model #NTDU91? Is there a feature for that? Thank you
You should call in your local vendor and have this done.
They will need to install a jack that matches your headphone jack and punch it down to a certain pair on the phone system, they will also need to go into configuration programming and set the feature.
Config password and knowledge of wiring and programming required. Note you need to purchase a license to "re-broadcast" music on phone systems, paging equipment etc.
Canada license - http://www.socan.ca/licensees/faq-licensing
USA license - http://www.ascap.com/licensing/
Under U.S.C. TITLE 17, the law allows copyright owners to receive as damages
for infringement between $500 and $100,000 for each work infringed