SIP User's Manual 384 Document #: LTRT-65415
MediaPack Series
Parameter Description
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
User-Agent: Sip-Gateway-/v.6.2A.008.006
Reason: Q.850 ;cause=16 ;text="local"
Content-Length: 0
Web/EMS: PRACK Mode
[PrackMode]
PRACK (Provisional Acknowledgment) mechanism mode for SIP 1xx
reliable responses.
[0] Disable
[1] Supported (default)
[2] Required
Notes:
The Supported and Required headers contain the '100rel' tag.
The device sends PRACK messages if 180/183 responses are
received with '100rel' in the Supported or Required headers.
Web/EMS: Enable Early
Media
[EnableEarlyMedia]
Enables the device to send a 183 Session Progress response with SDP
instead of a 180 Ringing, allowing the media stream to be established
prior to the answering of the call.
[0] Disable = Early Media is disabled (default).
[1] Enable = Enables Early Media.
Note that to send a 183 response, you must also set the parameter
ProgressIndicator2IP to 1. If it is equal to 0, 180 Ringing response is
sent.
Note: This parameter can be configured per IP Profile, using the
IPProfile parameter (see ''Configuring IP Profiles'' on page 122) a
nd per
Tel profile, using the TelProfile parameter (see ''Configuring Tel Profiles''
on page 121).
Web: 183 Message
Behavior
EMS: SIP 183 Behaviour
[SIP183Behaviour]
Defines the response of the device upon receipt of a SIP 183 response.
[0] Progress = A 183 response (without SDP) does not cause the
device to play a ringback tone (default).
[1] Alert = A 183 response is handled by the device as if a 180
Ringing response is received, and the device plays a ringback tone.
Web: Session-Expires
Time
EMS: Sip Session Expires
[SIPSessionExpires]
Determines the numerical value that is sent in the Session-Expires
header in the first INVITE request or response (if the call is answered).
The valid range is 1 to 86,400 sec. The default is 0 (i.e., the Session-
Expires header is disabled).
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