We have 7 buildings all connected via fiber. Each building has a 2801 for SRST and 911 handling.<br><br>As an upgrade, we are going to install a redundant CM (version 8.x). I have one site that needs quick failover, and most of the reading I have done implies about 40 seconds is required to recognize failure of the primary, and initiate handoff to the subscriber. I know there are some settings to speed this up as well.<br>
<br>My quesiton is, should I keep SRST now that I will have redundant CMs? Could they somehow assist in that 40 second timeframe, or are they sort of the subscriber when you don't have a redundant CM? What would I gain by keeping SRST with a redundant CM? <br>
<br>And I'm just curious, but how does Cisco license the redundant CM? Same prices and maintenance as a regular CM?<br><br>thank you!<br>