Version 6.6 509 MP-11x & MP-124
User's Manual 43. Configuration Parameters Reference
TLS. The device first sends a SIP OPTION message to
establish the TCP/TLS connection and if it receives any SIP
response, it continues sending the CRLF keep-alive
sequences.
EMS: Ping Pong Keep Alive Time
[PingPongKeepAliveTime]
Defines the periodic interval (in seconds) after which a “ping”
(double-CRLF) keep-alive is sent to a proxy/registrar, using the
CRLF Keep-Alive mechanism.
The default range is 5 to 2,000,000. The default is 120.
The device uses the range of 80-100% of this user-defined
value as the actual interval. For example, if the parameter
value is set to 200 sec, the interval used is any random time
between 160 to 200 seconds. This prevents an “avalanche” of
keep-alive by multiple SIP UAs to a specific server.
43.7 General SIP Parameters
The general SIP parameters are described in the table below.
Table 43-29: General SIP Parameters
Parameter Description
Web/EMS: Max SIP
Message Length [KB]
[MaxSIPMessageLength]
Defines the maximum size (in Kbytes) for each SIP message that can
be sent over the network. The device rejects messages exceeding this
user-defined size.
The valid value range is 1 to 50. The default is 50.
[SIPForceRport]
Determines whether the device sends SIP responses to the UDP port
from where SIP requests are received even if the 'rport' parameter is not
present in the SIP Via header.
[0] = (Default) Disabled. The device sends the SIP response to the
UDP port defined in the Via header. If the Via header contains the
'rport' parameter, the response is sent to the UDP port from where
the SIP request is received.
[1] = Enabled. SIP responses are sent to the UDP port from where
SIP requests are received even if the 'rport' parameter is not present
in the Via header.
Web: Max Number of
Active Calls
EMS: Maximum
Concurrent Calls
[MaxActiveCalls]
Defines the maximum number of simultaneous active calls supported by
the device. If the maximum number of calls is reached, new calls are not
established.
The valid range is 1 to the maximum number of supported channels.
The default value is the maximum available channels (i.e., no restriction
on the maximum number of calls).
Web: Number of Calls
Limit
[CallLimit]
Defines the maximum number of concurrent calls per IP Profile. If the IP
Profile is set to some limit, the device maintains the number of
concurrent calls (incoming and outgoing) pertaining to the specific
profile. When the number of concurrent calls is equal to the limit, the
device rejects any new incoming and outgoing calls belonging to that
profile.
This parameter can also be set to the following:
[-1] = (Default) There is no limitation on calls for that IP Profile.
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