Specifications

Cisco Unified Survivable Remote Site Telephony Feature Roadmap
Feature Roadmap
6
Cisco Unified Survivable Remote Site Telephony Version 4.0 System Administrator Guide
Version 2.0 12.2(8)T1 Cisco Unified SRST was implemented on the Cisco 2600XM and Cisco 2691
routers.
12.2(8)T Cisco Unified SRST was integrated into Cisco IOS Release 12.2(8)T and
implemented on the Cisco 3725 and Cisco 3745 routers and the
Cisco MC3810-V3 concentrators.
12.2(2)XT
• Cisco Unified SRST was implemented on the Cisco 1750 and Cisco 1751
routers.
• Huntstop support.
• Class of restriction (COR).
• Translation rule support.
• Music on hold and tone on hold.
• Distinctive ringing.
• Forward to a central voice mail or auto-attendant (AA) through PSTN during
Cisco Unified Unified CallManager fallback.
• Phone number alias support during Cisco Unified Unified CallManager
fallback: enhanced default destination support.
• List-based call restrictions for Cisco Unified Unified CallManager fallback.
Table 2 Cisco Unified SRST Features by Cisco IOS Release (continued)
Cisco Unified SRST
Version Cisco IOS Release Modifications