a. Cisco Unified Survivable Remote Site Telephony is a feature in Cisco IOS® Software that operates on specific routers.
b. Each router operating Cisco Unified SRST requires a feature license when deployed in a production environment.
The following components are required for a complete Cisco Unified Survivable Remote Site Telephony (SRST) IP Telephony Solution: ● Cisco Unified SRST supported router running a supported version of Cisco IOS Software ● Cisco Unified Survivable Remote Site Telephony Feature License for the number of phones to be deployed ● Voice modules for connectivity to the public switched telephone network (PSTN) or host private branch exchange (PBX) ● Digital-signal-processor (DSP) resources for PSTN-to-IP connectivity ● Optional Cisco Unity Express voicemail module ● Data switching using in-the-router switching with high-speed WAN interface card (HWIC) or network module (NM) or Cisco Catalyst® switch ● Cisco SMARTnet® support for the router hardware
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.