CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
'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
Via: SIP/2.0/UDP
10.33.4.126;branch=z9hG4bKac2127550866
Max-Forwards: 70
From:
<sip:401@10.33.4.126;user=phone>;tag=1c2113553
324
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;L
A=40;
Supported: em,timer,replaces,path,resource-
priority
Allow:
REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,
PRACK,REFER,INFO,SUBSCRIBE,UPDATE
User-Agent: Sip-Gateway-/7.20A.252.011
Reason: Q.850 ;cause=16 ;text="local"
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