Aastra Telecom SIP 57I - Manual (Page 107)

Administrator Level Options
41-001160-00, Release 2.1, Rev 04 3-49
Administrator Options
Administrator Options Advanced SIP Settings
In addition to the basic SIP settings, you can also configure the following
advanced SIP parameters. These parameters are configurable via the Aastra Web
UI and the configuration files on a global basis only.
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 Provider, 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 setting 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)” on
page 4-58 .
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)” on
page 4-58 .
Missed Call Summary
Subscription sip missed call summary
subscription 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” on page 6-13 .