Single Call Restriction (480I Ct Only); Configuring Via The Configuration Files - Aastra 480I Release Notes

IP Phone Release Notes 1.4.1
New Features in 1.4.1
480i CT Only

Single Call Restriction (480i CT only)

A new feature has been implemented on the 480i CT that allows an administrator
to enable or disable a single call restriction between the 480i CT base unit and a
call server.
When this feature is enabled (set to 1), you can make separate active calls from
the 480i 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 via the Configuration Files

You can configure the following parameter for the 480i CT single media path
restriction.
Parameter –
two call support
Two Call Support
(in Web UI)
Description
Format
46
Aastra Web UI
Configuration Files
Enables or disables the single media path restriction between the
480i CT base unit and the handset.
When this feature is enabled (set to 1), you can make separate active
calls from the 480i 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.
Boolean
Advanced Settings->Global SIP->RTP Settings
aastra.cfg, <mac>.cfg
41-001024-00, Rev 09, Release 1.4.1