Brand: Cisco
Category: Telephony
Document Type: Manual
Language: EN
Manual for SX20 Codec
Uploaded: April 20, 2026, 8:02 p.m.
Manual Publish Date: 2013-07-01
Warranty Information
None
This manual provides a comprehensive guide to the Cisco TelePresence SX20 Codec's Application Programmer Interface (API). It covers how to connect to the API, use commands, configurations, and statuses, and manage feedback. Key sections detail audio, video, network, and call configurations, as well as status reporting and troubleshooting.
The API is structured hierarchically into Commands, Configurations, Status, and Events, allowing for granular control and monitoring of the codec's functionalities. It supports various connection methods including RS-232, Telnet, SSH, and HTTP/HTTPS.
The document also includes detailed explanations of xConfiguration commands for system settings, xCommand commands for executing actions, and xStatus commands for retrieving system states. It serves as a technical reference for developers integrating with the SX20 Codec.
The API is structured hierarchically into Commands, Configurations, Status, and Events, allowing for granular control and monitoring of the codec's functionalities. It supports various connection methods including RS-232, Telnet, SSH, and HTTP/HTTPS.
The document also includes detailed explanations of xConfiguration commands for system settings, xCommand commands for executing actions, and xStatus commands for retrieving system states. It serves as a technical reference for developers integrating with the SX20 Codec.
Troubleshooting and error codes
| Problem | Possible Cause | Solution |
|---|---|---|
| System does not respond to commands | Network connection issues | Check network connection. Verify IP address and subnet mask. Ensure the codec is powered on and accessible on the network. |
| Call setup fails | Incorrect configuration of SIP/H.323 settings | Verify SIP/H.323 profile settings, including proxy addresses, domain names, and authentication credentials. Ensure correct gateway and gatekeeper configurations. |
| Video or audio quality is poor | Network bandwidth limitations or incorrect codec settings | Check available bandwidth. Optimize QoS settings. Ensure camera and audio input settings are correctly configured. Consider updating firmware. |
| Remote control not working | Remote control pairing issues or IR signal obstruction | Re-pair the remote control. Ensure a clear line of sight between the remote and the codec. Check battery status. |
| Startup script execution fails | Incorrect script syntax or permissions | Verify the script starts with '#!/usr/bin/env tsh', uses correct command syntax, and has executable permissions. Ensure Unix line endings (LF) are used. |