Tcl scripts are available in several locations on Cisco.com, depending on the application. You can find most Tcl applications by searching for "tclware." The notable exceptions are the AA and B-ACD Tcl scripts, which you can find in the CallManager Express/SRST software download section of Cisco.com.
It can be difficult to find the CME and SRST scripts because they are handled differently on Cisco.com. The CME AA and B-ACD scripts are available as individual downloads in zip and tar formats. The B-ACD script is also contained within some of the CME bundles. The SRST AA script is contained in a zip file called SRST-2.0.zip. This file is described as optional files for use with SRST 2.0. "Optional files" are also available for SRST 3.0 and SRST 3.3, but they do not include the AA Tcl script. The SRST 2.0 version of the AA script currently works with all available versions of SRST.
One of the most common problems with the AA script is using the wrong version. This is easy to do because only the CME script is labeled as an AA script, and the SRST AA script is not clearly labeled. If you use the CME version on an SRST router, the application loads and even answers the call. However, the caller does not hear prompts even though debugs indicate that the prompts are being played.
Part I: Voice Gateways and Gatekeepers
Gateways and Gatekeepers
Part II: Gateways
Media Gateway Control Protocol
Session Initiation Protocol
Connecting to the PSTN
Connecting to PBXs
Connecting to an IP WAN
Influencing Path Selection
Configuring Class of Restrictions
SRST and MGCP Gateway Fallback
Using Tcl Scripts and VoiceXML
Part III: Gatekeepers
Part IV: IP-to-IP Gateways
Cisco Multiservice IP-to-IP Gateway
Appendix A. Answers to Chapter-Ending Review Questions