Callmanager Express > B-ACD and Tcl Call-Handling Applications > Cisco Unified CME Basic Automatic Call Distribution and Auto-Attendant Service (B-ACD)
Copy and paste code into notepad from approximately 3/4 the way down the page. This will configure the “aa” service as well as the “queue”. Include the voip dial-peer for local dialing from CME phones, otherwise reference the pots dial-peer for inbound PSTN call handling.
Cisco Callmanager > Cisco Unified CallManager Security and Virus Protection Guides > Cisco CallManager TCP and UDP Port Usage > Choose Version
Direct Link found here.