Survivable Remote Site Telephony Overview - Cisco 8811 User Manual

Advanced Operations

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.
SRST does not support IPv6.
Note
Table 1: Feature Support During Failover
Feature
New Call
End Call
Redial
Answer
Hold
Resume
Conference
Conference to Active Calls (Join)
Conference List
Transfer
Transfer to Active Calls (Direct
Transfer)
Auto Answer
Call Waiting
Caller ID
Audible Message Waiting Indicator
Cisco IP Phone 8811, 8841, 8851, 8851NR, and 8861 User Guide for Cisco Unified Communications Manager 10.5
Supported
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
Yes
Yes
Yes
Yes
Survivable Remote Site Telephony Overview
Notes
The Active Calls softkey does not
display.
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