Savi 700 Series/CS500 Series with APV-63 Troubleshooting: Inconsistent call control with Avaya 14xx phones
I do not get consistent call control with Avaya 1408/1416 phone running R4 SP3 firmware and Plantronics EHS APV-63. What is the issue?
This is a firmware defect. Avaya addressed this issue in R4 SP4 (alias version 38.0 vintage 07), which was released in Feb 2014.