Aastra Telecom 57I C53I IP Phone User Manual


 
Administrator Level Options
41-001160-00, Rev 01 Release 2.0 3-17
Administrator Options
Administrator Options
Outbound Proxy Port
The proxy port on the proxy server to which the IP phone sends all SIP
messages. Default is 0. Configurable on a global and per-line basis.
Registrar Server
(Registrar IP in the configuration files). IP address of the SIP registrar. Up to
64 alphanumeric characters. Enables or disables the phone to be registered
with the Registrar. When Register is disabled globally, the phone is still active
and you can dial using username and IP address of the phone. A message "No
Service" displays on the idle screen and the LED is steady ON. If Register is
disabled for a single line, no messages display and LEDs are OFF.
Configurable on a global and per-line basis.
Registrar Port
SIP registrar’s port number. Default is 0. Configurable on a global and
per-line basis.
Backup Registrar Server
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.
Backup Registrar Port
The backup registrar's (typically the backup SIP proxy) port number.
Registration Period
(Not configurable via IP Phone UI). The requested registration period, in
seconds, from the registrar. Configurable on a global and per-line basis.
Advanced SIP Settings
In addition to the basic SIP settings, you can also configure the following
advanced SIP parameters. These parameters are not configurable via the IP phone
UI.
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.