Media Attribute (a): ptime:30
Media Attribute Fieldname: ptime
Media Attribute Value: 30
Media Attribute (a): rtpmap:0 PCMU/8000
Media Attribute Fieldname: rtpmap
Media Attribute Value: 0 PCMU/8000
Media Attribute (a): curr:qos local none
Media Attribute Fieldname: curr
Media Attribute Value: qos local none
Media Attribute (a): curr:qos remote none
Media Attribute Fieldname: curr
Media Attribute Value: qos remote none
Media Attribute (a): des:qos mandatory local sendrecv
Media Attribute Fieldname: des
Media Attribute Value: qos mandatory local sendrecv
Media Attribute (a): des:qos mandatory remote sendrecv
Media Attribute Fieldname: des
Media Attribute Value: qos mandatory remote sendrecv
Figure 3-29 SIP 183 SESSION PROGRESS {SDP}
183 Session Progress
Session Initiation Protocol
Status line: SIP/2.0 183 Session Progress
Status-Code: 183
Message Header
t: <sip:+17952425001@10.11.2.25;transport=sctp;user=phone>;tag=0-04-014-
40014-1443
f: <sip:+18152205000@10.11.2.9;transport=sctp;user=phone>;tag=0-02-014-
00014-1441
i: 110675ba-ee530082-e05d75ce@LABM1
CSeq: 1 INVITE
v: SIP/2.0/SCTP 10.11.2.9:1;branch=z9hG4bK0140116.ebbe.00000001
MIME-Version: 1.0
c: application/SDP
Allow: INVITE, ACK, BYE, CANCEL, UPDATE, INFO, OPTIONS
Require: precondition
l: 285
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o):-00INIP4192.168.2.13
Owner Username: -
Session ID: 0
Session Version: 0
Owner Network Type: IN
Owner Address Type: IP4
Owner Address: 192.168.2.13
Session Name (s): 0
Connection Information (c): IN IP4 192.168.2.13
Connection Network Type: IN
Connection Address Type: IP4
Connection Address: 192.168.2.13
Time Description, active time (t): 0 0
Session Start Time: 0
Session Start Time: 0
SIP without Encapsulated ISUP - SIP
Message Examples
Call Flow
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3-66
Lucent Technologies 235-200-118
Issue 3.02B, March 2007