Survivable Remote Site Telephony - Cisco 8800 Series Administration Manual

Survivable Remote Site Telephony

Survivable Remote Site Telephony (SRST) ensures that basic phone functions remain accessible when WAN
connectivity is lost. In this scenario, the phone can keep an in-progress call active, and the user can access a
subset of the features available. When failover occurs, the user receives an alert message on the phone.
For more information about supported firmware and Survivable Remote Site Telephony, see Cisco Unified
Survivable Remote Site Telephony Compatibility Information page on Cisco.com
en/us/support/unified-communications/unified-survivable-remote-site-telephony/
products-device-support-tables-list.html).
The following table describes the availability of features during failover.
Table 14: SRST feature support
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
All Calls Programmable Line Key
Answer Programmable Line Key
Supported
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager
Survivable Remote Site Telephony
(http://www.cisco.com/c/
Notes
The Active Calls softkey does not display.
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