a418c269__IP_Phone_8900_Series____Cisco_eature_support_during_failover_Notes
[Feature] QRT [Supported] No [Notes] 
The softkey causes no action.
Cisco Unified IP Phones 8941 and 8945 User Guide for Cisco Unified Communications Manager 9.0 (SCCP and SIP) - Calling Features [Cisco Unified IP Phone 8900 Series] - Cisco