Get Display Button on Phone command tab is disabled. Please guide me how can I get it enabled.
I am able to get Device ID but failing to Register Terminal.

Start Application Session Response: 1 Session ID: A52459507F31D41CFDAC5DA2A14B2284-6793 Duration:180 Protocol Version: http://www.ecma-international.org/standards/ecma-323/csta/ed3/priv9
Get Device Id Response (Device.Phone):2 Device Id:1620001:FTLLAB:10.15.100.50:0
Register Terminal Response: 3 Error:<?xml version="1.0" encoding="UTF-8"?><CSTAErrorCode xmlns="http://www.ecma-international.org/standards/ecma-323/csta/ed3"><unspecified /></CSTAErrorCode>

1) the GetDisplay button will only be enabled (really operational) if the device is registered.
2) unfortunately CSTA did not allow much in the way of diagnostic information to be included in the error reports. Please access the dmcc logs on the AE Services server and look at the error information associated with your request. They are much more informative.

See
http://www.devconnectprogram.com/site/global/products_resources/avaya_aura_application_enablement_services/support/faq/dmcc/other.gsp

How can I monitor the XML being sent and received by the AE Services Server (debug, log, trace)?