Cisco 8811 Administration Guide

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 (http://www.cisco.com/c/
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 15: SRST feature support
NotesSupportedFeature
YesNew Call
YesEnd Call
YesRedial
YesAnswer
YesHold
YesResume
YesConference
The Active Calls softkey does not display.NoConference to Active Calls (Join)
NoConference List
YesTransfer
NoTransfer to Active Calls (Direct
Transfer)
YesAuto Answer
YesCall Waiting
YesCaller ID
YesAudible Message Waiting Indicator
YesAll Calls Programmable Line Key
YesAnswer Programmable Line Key
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Survivable Remote Site Telephony

Cisco 8811 Specifications

General

Ethernet Ports	2 x 10/100/1000
Lines Supported	5
Speakerphone	Yes
Headset Port	Yes
USB Port	No
Bluetooth	No
Wi-Fi	No
Resolution	800 x 480 pixels
PoE	Yes, IEEE 802.3af Class 2
Audio Codec Support	G.711, G.722, G.729, iLBC
Protocols	SIP
Display	5-inch, 800 x 480 pixels
Headset Jack	RJ9
Weight	1.1 kg