User's Manual 894 Document #: LTRT-89730
Mediant 3000
Parameter Description
Verify Received
RequestURI
[VerifyReceevedRequestU
ri]
Enables the device to reject SIP requests (such as ACK, BYE, or re-
INVITE) whose user part in the Request-URI is different from the user
part received in the Contact header of the last sent SIP request.
[0] Disable = (Default) Even if the user is different, the device accepts
the SIP request.
[1] Enable = If the user is different, the device rejects the SIP request
(BYE is responded with 481; re-INVITE is responded with 404; ACK
is ignored).
Max Number of Active
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).
Number of Calls Limit
[IpProfile_CallLimit,]
Defines the maximum number of concurrent calls per IP Profile (see
''Configuring IP Profiles'' on page 391).
QoS statistics in SIP
Release Call
[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
Via: SIP/2.0/UDP
10.33.4.126;branch=z9hG4bKac2127550866
Max-Forwards: 70
From:
<sip:401@10.33.4.126;user=phone>;tag=1c2113553324
To: <sip:302@company.com>;tag=1c991751121
Call-ID: 991750671245200001912@10.33.4.125
CSeq: 1 BYE
X-RTP-Stat:
PS=207;OS=49680;;PR=314;OR=50240;PL=0;JI=600;LA=40;
Supported: em,timer,replaces,path,resource-priority
Allow:
REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK
,REFER,INFO,SUBSCRIBE,UPDATE
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