Administrator Level Options
3-38
41-001343-02 REV05 – 07.2014
Advanced SIP Settings
In addition to the basic SIP settings, you can also configure the following advanced SIP parameters. These parameters
may be configurable via the Aastra Web UI and/or the configuration files.
Registrar Port
Registrar Port
(Global and Per-Line)
sip registrar port
(global)
sip lineN registrar port
(per-line)
SIP registrar’s port number. Default is 0.
For more information, see Chapter 4,
on
N/A
Backup Registrar Server
(Global and Per-Line)
sip backup registrar ip
(global)
sip lineN backup registrar ip
(per-line)
The address of the backup registrar (typically, the backup SIP
proxy) for which the IP phone uses to send
REGISTER
requests
if the primary registrar is unavailable.
For more information, see Chapter 4,
on
N/A
Backup Registrar Port
(Global and Per-Line)
sip backup registrar port
(global)
sip lineN backup registrar port
The backup registrar's (typically the backup SIP proxy) port
number.
For more information, see Chapter 4,
on
N/A
Registration Period
(Global and Per-Line)
sip registration period
(global)
sip lineN registration period
(per-line)
The requested registration period, in seconds, from the regis-
trar.
For more information, see Chapter 4,
on
N/A
Conference Server URI
(Global and Per-Line)
sip centralized conf
(global)
sip lineN centralized conf
(per-line)
Globally enables or disables SIP centralized conferencing for
an IP phone.
For more information, see Chapter 4,
ing (for Sylantro and BroadSoft Servers)”
.
Parameter in
Aastra Web UI
Parameters in Configuration Files
Description
Explicit MWI Subscription
sip explicit mwi subscription
If the IP phone has a message waiting subscription with the Service Pro-
vider, a Message Waiting Indicator (MWI) (LED or display icon) tells the user
there is a message on the IP Phone. You can enable and disable MWI by set-
ting this parameter to 0 (disable) or 1 (enable) in the configuration files or
by checking the box for this field in the Aastra Web UI. Default is disabled.
For more information, see Chapter 4,
“Advanced SIP Settings (optional)”
Explicit MWI Subscription Period
sip explicit mwi subscription period
The requested duration, in seconds, before the MWI subscription times
out. The phone re-subscribes to MWI before the subscription period ends.
For more information, see Chapter 4,
“Advanced SIP Settings (optional)”
N/A
sip missed call summary subscrip-
tion
(global)
sip lineN missed call summary sub-
scription
(per-line)
Enables or disables the Missed Call Summary Subscription feature.
This feature allows missed calls that have been redirected by the server, to
be incremented in the missed calls indicator on the phone it was initially
directed to. Default is disabled.
For more information about this parameter, see Chapter 6, the section,
“Missed Call Summary Subscription”
.
Parameter In
IP Phone UI
Parameter in
Aastra Web UI
Parameters in Configuration
Files
Description