Version 6.2
773
February 2011
SIP User's Manual
12. Configuration Parameters Reference
Parameter
Description
more than one three-way conference may be supported (up to six).
Web: Establish
Conference Code
EMS: Establish Code
[ConferenceCode]
Defines the digit pattern, which upon detection, generates the
Conference-initiating INVITE when 3-way conferencing is enabled
(Enable3WayConference is set to 1).
The valid range is a 25-character string. The default is “!” (Hook-Flash).
Web/EMS: Conference ID
[ConferenceID]
Defines the Conference Identification string (up to 16 characters). The
default value is 'conf'.
The device uses this identifier in the Conference-initiating INVITE that is
sent to the media server when Enable3WayConference is set to 1.
For example: ConferenceID = MyConference.
12.12.5.8
Emergency Call Parameters
The emergency call parameters are described in the table below.
Table
12-45: Emergency Call Parameters
Parameter
Description
EMS: Enable 911 PSAP
[Enable911PSAP]
If enabled, the device supports E911 DID protocol according to
Bellcore GR-350-CORE standard. This protocol defines signaling
between E911 Tandem Switches and the PSAP, using analog loop-
start lines. The FXO device can be installed instead of an E911
switch, connected directly to PSAP DID loop-start lines.
[0]
= Disable (default)
[1]
= Enable
Notes:
This parameter is applicable only to FXO interfaces.
This parameter can also be configured per Tel Profile, using the
TelProfile parameter.
Web/EMS: Emergency
Numbers
[EmergencyNumbers]
Defines a list of “emergency” numbers.
When one of these numbers is dialed, the outgoing INVITE message
includes the SIP Priority and Resource-Priority headers. If the user
places the phone on-hook, the call is not disconnected. 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 EmergencyRegretTimeout parameter) is the call
terminated. This scenario is applicable only to FXS interfaces.
These emergency numbers can also be used for pre-emption of E911
IP-to-Tel calls when there are unavailable (busy) channels. In this
scenario, the device terminates one of the busy channels and sends
the E911 call to this channel. This feature is enabled by setting the
CallPriorityMode parameter to 2 (“Emergency”) and by defining an
emergency number value of “911” for the EmergencyNumbers
parameter. For a description of this feature, see ''Pre-empting Existing
Call for E911 IP-to-Tel Call'' on page
. This scenario is applicable
to FXS/FXO, CAS, and ISDN interfaces.
The list can include up to four different numbers, where each number
can be up to four digits long.
Example: EmergencyNumbers = ‘100’,’911’,’112’
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