1 Scope
2 Purpose
3 References
4 Terminology
   4.1 General terms
   4.2 SIP/CSTA Terminology Mappings
5 Example Environments for uaCSTA
   5.1 Controlling and Observing a SIP Phone
   5.2 Controlling and Observing a SIP Phone by Augmenting
         B2BUA Functionality
   5.3 Controlling a PBX Phone
6 Example User Agent Configurations
   6.1 Single Line Phone UA
   6.2 Multi Line Phone UA
   6.3 Bridged Appearance Phone and other Advanced UA
         Configurations
7 SIP Transport Mechanism for CSTA Messages
   7.1 Establishing a CSTA Application Session
   7.2 Transporting CSTA Service Requests and Responses
   7.3 Starting a Monitor and Transporting CSTA Events
8 uaCSTA Profiles
   8.1 Minimal uaCSTA Call Control Profile
   8.2 Basic uaCSTA Call Control Profile
   8.3 Advanced uaCSTA Call Control Profile
   8.4 Conferencing uaCSTA Call Control Feature Profile
   8.5 Basic uaCSTA Device Feature Profile
   8.6 Speaker uaCSTA Device Feature Profile
9 CSTA Calls and Connections
   9.1 CSTA Connection State Model
   9.2 Connection State Transitions for CSTA Calls
10 Call Control
   10.1 Alternate Call
   10.2 Answer Call
   10.3 Clear Connection
   10.4 Consultation Call
   10.5 Deflect Call
   10.6 Generate Digits
   10.7 Hold Call
   10.8 Make Call
   10.9 Reconnect Call
   10.10 Retrieve Call
   10.11 Single Step Transfer Call
   10.12 Transfer Call
11 Physical Phone Features
   11.1 Get Message Waiting Indicator
   11.2 Set Message Waiting Indicator
   11.3 Get Speaker Mute
   11.4 Set Speaker Mute
   11.5 Get Speaker Volume
   11.6 Set Speaker Volume
12 Logical Phone Features
   12.1 Get Do Not Disturb
   12.2 Set Do Not Disturb
   12.3 Get Forwarding
   12.4 Set Forwarding
13 Monitoring Services and Events
   13.1 Monitor Start
   13.2 Monitor Stop
   13.3 Events
14 Snapshot Services
   14.1 Snapshot Device
15 Discovery and System Status Services
   15.1 Get CSTA Features
   15.2 Request System Status
   15.3 System Status
16 ECMA-323 Illustrative Examples
   16.1 Controlling a SIP UA
   16.2 Controlling a PBX Phone
Annex A (informative) Example use of SIP and TEL URIs