AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN - Manual (Page 348)

41-001343-01 Rev 03, Release 3.2.2 5-71
Call Waiting
The call waiting feature notifies a user on an active call on the phone, of a new incoming call. You
can disable this call waiting feature, so that the new incoming call is automatically rejected by the
phone with a busy message. A User or Administrator can configure this feature.
If you disable call waiting on the phone, and the user is on a call, any further incoming calls will
receive busy unless “Call Forward Busy” or “Call Forward No Answer and Busy” is configured on
the phone. It will then forward the call according to the rule configured. The phone can only:
• transfer the currently active call
or
• accept transferred calls if there is no active calls.
If call waiting is disabled:
• on the 6757i CT bases, and the handset is currently on a call, all additional incoming calls are
rejected on the handset.
• intercom calls are treated as regular incoming calls and are rejected.
• pre-dialing with live dial pad disabled still accepts incoming calls.
• the “Incoming Call Cancels Dialing” parameter is ignored because the incoming call is
automatically rejected.
• the Missed Calls List does not get updated with details of calls.
• the Blind Transfer feature on the phone may not work if two calls are made to the phone at one
time.
You can enable/disable call waiting on a global or per-line basis using the configuration files or the
Aastra Web UI.
Configuring Call Waiting
Use the following procedures to configure the Call Waiting feature on the IP phone.
Configuration Files
For specific parameters you can set in the configuration files, see Appendix A, the section, “Call Waiting
Settings” on page A-76 or “SIP Per-Line Call Waiting Setting” on page A-88 .