Update: Voice System Services
ITS/TNS continues to work on the current phone related issues.
7906, 7911, 7941, 7961, 7942, and 7962 Cisco model phones will be reset in effort resolve some of the issues.
CHG0036098
More information: Update: Voice System Services
Story added 5. April 2016, content source with full text you can find at link above.