Softkey
Programmable feature
button
Dedicated feature button
Feature name
X (available during a
transfer only)
X
Transfer
Survivable Remote Site Telephony Overview
If communication between your phone and the Cisco Unified Communications Server is interrupted, you
receive an alert message on your phone. If you are on an active call, the call remains established, and you
enter a failover situation. This failover is the Survivable Remote Site Telephony (SRST) feature.
While in failover, not all the features of your phone are available. The following table describes typical feature
and feature availability, although not all the features may be supported on your phone . For more information
about feature availability during failover, contact your system administrator.
Table 1: Feature Support During Failover
Notes
Supported
Feature
Yes
New Call
Yes
End Call
Yes
Redial
Yes
Answer
Yes
Hold
Yes
Resume
Yes
Conference
The Active Calls softkey does not
display.
No
Conference to Active Calls (Join)
No
Conference List
Yes
Transfer
No
Transfer to Active Calls (Direct
Transfer)
Yes
Auto Answer
Yes
Call Waiting
Yes
Caller ID
Cisco Unified IP Phones 8941 and 8945 User Guide for Cisco Unified Communications Manager 9.0 (SCCP and
SIP)
40
Calling Features
Survivable Remote Site Telephony Overview