Cisco Unified Survivable Remote Site Telephony

• Cisco Unified Survivable Site Remote Telephony (SRST) Version 4.0
  Cisco Unified Survivable Site Remote Telephony (SRST) was formerly known as Cisco Survivable Site Remote Telephony (SRST).

• Cisco Survivable Remote Site Telephony (SRST) Version 3.4

• Cisco Survivable Remote Site Telephony (SRST) Version 3.3

• Cisco Survivable Remote Site Telephony (SRST) Version 3.2

• Cisco Survivable Remote Site Telephony (SRST) Version 3.1

• Cisco Survivable Remote Site Telephony (SRST) Version 3.0

• Cisco Survivable Remote Site Telephony (SRST) Version 2.1

• Survivable Remote Site Telephony Version 2.0

• Survivable Remote Site Telephony Version 1.0

• Cisco SRST and SIP SRST Command Reference (All Versions)

• Integration Documentation
  Includes documentation for configuring Cisco SRST and other Cisco programs to work together.