Aastra Telecom SISIP 57I CT - Manual (Page 290)

Operational Features
5-162 41-001160-00, Rev 01 Release 2.0
IP Phone Administrator Guide
Operational IP Phone Features
Call Waiting Tone
You can enable or disable the playing of a call waiting tone when a caller is on an
active call and a new call comes into the phone.
You can configure this feature using the configuration files and the Aastra Web
UI.
Configuring Call Waiting Tone
Use the folllowing procedures to configure a call waiting tone on the IP phones.
Configuration Files
For specific parameters you can set in the configuration files for enabling/disabling a call waiting tone, see
Appendix A, the section,
“Call Waiting Tone Setting” on page A-79.
Aastra Web UI
1 Click on Basic Settings->Preferences->General.
2 A call waiting tone is enabled by default. If required, disable the "Play Call Waiting Tone" field by
unchecking the check box.