User`s manual

SIP User's Manual 138 Document #: LTRT-65411
MediaPack Series
Parameter Description
Emergency Calls
Emergency Numbers
[EmergencyNumbers]
Defines a list of numbers which are defined as 'emergency numbers'.
When one of these numbers is dialed, the outgoing INVITE message
includes the Priority and Resource-Priority headers. If the user sets the
phone on-hook, the call is not disconnected, but instead a Hold Re-
INVITE request is sent to the remote party. Only if the remote party
disconnects the call (i.e., a BYE is received) or a timer expires (set by the
parameter EmergencyRegretTimeout) is the call terminated.
The list can include up to four different numbers, where each number can
be up to four digits long.
Example: EmergencyNumbers = ‘100’,’911’,’112’
Note: This parameter is applicable only to FXS interfaces.
Emergency Calls Regret
Timeout
[EmergencyRegretTim
eout]
Determines the time (in minutes) that the device waits before tearing-
down an emergency call (defined by the parameter EmergencyNumbers).
Until this time expires, an emergency call can only be disconnected by
the remote party [(typically, by a Public Safety Answering Point (PSAP)].
The valid range is 1 to 30. The default value is 10.
Note: This parameter is applicable only to FXS interfaces.
3.4.4.2.2 Supplementary Services
The 'Supplementary Services' page is used to configure parameters that are associated
with supplementary services. For detailed information on supplementary services, refer to
''Working with Supplementary Services'' on page 356.
¾ To configure the supplementary services' parameters, take these 4
steps:
1. Open the 'Supplementary Services' page (Configuration tab > Protocol
Configuration menu > SIP Advanced Parameters submenu > Supplementary
Services page item).