User's Manual 844 Document #: LTRT-10466
Mediant 500L MSBR
Parameter Description
Web: Max Number of Active
Calls
EMS: Maximum Concurrent
Calls
CLI: 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).
Web: Number of Calls Limit
[IpProfile_CallLimit,]
Defines the maximum number of concurrent calls per IP Profile (see
''Configuring IP Profiles'' on page 332).
Web: 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=4
0;
Supported: em,timer,replaces,path,resource-
priority
Allow:
REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRA
CK,REFER,INFO,SUBSCRIBE,UPDATE
User-Agent: Sip-Gateway-/v.6.80A.227.005
Reason: Q.850 ;cause=16 ;text="local"
Web/EMS: PRACK Mode
CLI: prack-mode
[PrackMode]
Determines the PRACK (Provisional Acknowledgment) mechanism
mode for SIP 1xx reliable responses.