Specifications

Setting Up Secure Survivable Remote Site Telephony
How to Configure Secure SRST
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Cisco Unified Survivable Remote Site Telephony Version 4.0 System Administrator Guide
b. Check the box asking if the SRST gateway is secure.
c. Enter the certificate provider (credentials service) port number. Credentials service runs on default
port 2445.
Figure 6 SRST Reference Configuration Window
Step 4
To add the new SRST reference, click Insert. The message “Status: Insert completed” displays.
Step 5 To add more SRST references, repeat Steps 2 through 4.
Configuring SRST Fallback on Cisco Unified CallManager
The following procedure describes how to configure SRST fallback on Cisco Unified CallManager by
assigning the device pool to SRST.
For complete information about adding a device pool to Cisco Unified CallManager, see the “Device
Pool Configuration” section in the Cisco Unified CallManager Administration Guide for the
Cisco Unified CallManager release that you are running. All Cisco Unified CallManager administration
guides are at
http://www.cisco.com/en/US/products/sw/voicesw/ps556/prod_maintenance_guides_list.html.
SUMMARY STEPS
1. Choose Device Pool in the Cisco Unified CallManager menu bar.
2. Add a device pool.
3. Click Add New Device Pool.
4. Enter the SRST reference.
5. Click Update.