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Operational, Basic, and Advanced Parameters
A-73 41-001343-02 REV04 – 05.2014
SIP Per-Line Call Waiting Setting
SIP Per-Line Network Settings
Parameter –
sip lineN call waiting
(N is a line number from 1 to 9)
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description Allows you to enable or disable Call Waiting on the IP phone on a per line basis.
If you enable call waiting (default), the user has the option of accepting a second call while
currently on the first call. If you disable call waiting, and a user is currently on a call, a sec-
ond incoming call is automatically rejected by the phone with a busy message.
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 con-
figured 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 base, 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 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.
Format Boolean
Default Value Global
Range Global
0 (disabled)
1 (enabled)
Example sip line1 call waiting: 0
sip line2 call waiting: 1
sip line3 call waiting: 0
Parameter –
sip lineN proxy ip
(N is a line number from 1 to 9)
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description The IP address of the SIP proxy server for which the IP phone uses to send all SIP requests.
A SIP proxy is a server that initiates and forwards requests generated by the IP phone to
the targeted user.
Format IP address or fully qualified Domain Name
Default Value 0.0.0.0
Range Not Applicable
Example sip line1 proxy ip: 192.168.0.101