AudioCodes mediapack MP-500, User Manual

Page: 152 / 574

SIP User's Manual 152 Document #: LTRT-12801
MP-500 MSBG
Parameter Description
redundancy mode is disabled.
ƒ
When the active proxy doesn't respond to INVITE messages
sent by the device, the proxy is tagged as 'offline'. The behavior
is similar to a Keep-Alive (OPTIONS or REGISTER) failure.
Web: Proxy Keep Alive Time
EMS: Keep Alive Time
[ProxyKeepAliveTime]
Defines the Proxy keep-alive time interval (in seconds) between
Keep-Alive messages. This parameter is configured per Proxy Set.
The valid range is 5 to 2,000,000. The default value is 60.
Note: This parameter is applicable only if the parameter
EnableProxyKeepAlive is set to 1 (OPTIONS). When the
parameter EnableProxyKeepAlive is set to 2 (REGISTER), the
time interval between Keep-Alive messages is determined by the
parameter RegistrationTime.
Web/EMS: Is Proxy Hot-Swap
[IsProxyHotSwap]
Enables the Proxy Hot-Swap redundancy mode per Proxy Set.
ƒ
[0] No = Disabled (default).
ƒ
[1] Yes = Proxy Hot-Swap mode is enabled.
If Proxy Hot-Swap is enabled, the SIP INVITE/REGISTER
message is initially sent to the first Proxy/Registrar server. If there
is no response from the first Proxy/Registrar server after a specific
number of retransmissions (configured by the parameter
HotSwapRtx), the INVITE/REGISTER message is resent to the
next redundant Proxy/Registrar server.
SRD Index
[ProxySet_SRD]
The SRD associated with the Proxy Set ID.
Note: If no SRD is defined for this parameter, by default, SRD ID 0
is associated with the Proxy Set.
3.4.5.4.3 Configuring the IP Groups
The 'IP Group Table' page allows you to create up to nine logical IP entities called IP
Groups . These IP Groups are used for classifying incoming SIP dialog-initiating requests
(e.g., INVITE messages) and for call routing. The IP Group can be used as a destination
entity in the 'Tel to IP Routing' table, and Serving IP Group ID in the 'Hunt Group Settings'
(refer to ''Configuring the Trunk Group Settings'' on page
222 ) and 'Account' (refer to
''Configuring the Account Table'' on page 157 ) tables. These call routing tables are used for
identifying the IP Group from where the INVITE is sent for obtaining a digest user/password
from the 'Account' table if there is a need to authenticate subsequent SIP requests in the
call. The IP Group can also be implemented in IP-to-Tel call routing as a source IP Group.
The IP Groups can be assigned various entities such as a Proxy Set ID, which represents
an IP address (created in ''Configuring the Proxy Sets Table'' on page
148 ). You can also
assign the IP Group with a host name and other parameters that reflect parameters sent in
the SIP Request From\To headers.
The IP Group table is also used in the classification process for determining the source IP
Group of incoming SIP dialog requests (e.g., INVITE message), based on Proxy Set ID.
This occurs if the database search for a registered user is unsuccessful. The classification
process locates a Proxy Set ID (associated with the SIP dialog request’s IP address) in the
Proxy Set table, and then locates a match with an IP Group that is associated with this
Proxy Set in the IP Group table. This classification is enabled using the parameter Classify
By Proxy Set.