CHAPTER60 Configuration Parameters Reference
Mediant 4000 SBC | User's Manual
Parameter Description
■ Handling In-dialog Requests: If the
VerifyRecievedRequestUri parameter is configured to [1] or [3],
for all incoming in-dialog requests (including ACK and CANCEL),
the device checks if the Request-URI user part matches the
remote Contact user part (i.e., the Contact user configured for
the Account). If there is no match, the device rejects the request
and sends a SIP 481 response for requests such as BYE and
CANCEL, or a SIP 404 for other requests, and for ACK it does
not send any response.
[RegistrarProxySetID] Defines a Proxy Set for the registrar. The parameter functions
together with the VerifyRecievedRequestUri parameter. For more
information, see the description of the VerifyRecievedRequestUri
parameter.
The default value is -1 (not defined).
Note: This setting assumes that the SIP Interface has only one regis-
trar.
'Max Number of Active
Calls'
configure voip >
sip-definition
settings > max-
nb-of--act-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).
'QoS statistics in
Release Msg'
configure voip >
sip-definition
settings > qos-
statistics-in-
release-msg
[QoSStatistics]
Enables the device to include call quality of service (QoS) statistics
in SIP BYE and SIP 200 OK response to BYE, using the proprietary
SIP header X-RTP-Stat.
■ [0] Disable (default)
■ [1] Enable
The X-RTP-Stat header provides the following statistics:
■ Number of received and sent voice packets
■ Number of received and sent voice octets
■ Received packet loss, jitter (in ms), and latency (in ms)
The X-RTP-Stat header contains the following fields:
■ PS=<voice packets sent>
■ OS=<voice octets sent>
■ PR=<voice packets received>
■ OR=<voice octets received>
■ PL=<receive packet loss>
■ JI=<jitter in ms>
■ LA=<latency in ms>
Below is an example of the X-RTP-Stat header in a SIP BYE
message:
BYE sip:302@10.33.4.125 SIP/2.0
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