Aastra Telecom C53I User Guide
Advanced Operational Features
41-001160-00, Rev 01 Release 2.0
6-9
Advanced IP Phone Operational Features
Advanced Operational Features
Single Call Restriction (57i CT only)
On the 57i CT, an administrator can enable or disable a single call restriction
between the 57i CT base unit and a call server.
between the 57i CT base unit and a call server.
When this feature is enabled (set to 1), you can make separate active calls from
the 57i CT base unit and from the cordless handset. If this feature is disabled (set
to 0), only one call can be active at a time either from the base unit or from the
handset. When this feature is disabled, and you make an active call on either the
base unit or the handset, any other attempt to make an active call is put on hold.
Also, when this feature is disabled, more than one call can negotiate complex
audio codecs since only a single call is decoding audio at a time.
the 57i CT base unit and from the cordless handset. If this feature is disabled (set
to 0), only one call can be active at a time either from the base unit or from the
handset. When this feature is disabled, and you make an active call on either the
base unit or the handset, any other attempt to make an active call is put on hold.
Also, when this feature is disabled, more than one call can negotiate complex
audio codecs since only a single call is decoding audio at a time.
You can configure this feature via the configuration files or the Aastra Web UI.
Configuring Single Call Restriction.
Configuration Files
For the specific parameters you can set in the configuration files for single call restriction on the 57i CT, see
Appendix A, the section,
Appendix A, the section,