[SIPForum-discussion] unnecessary 183 session progress

Mon Mar 12 15:37:19 UTC 2012

Hi Sam,

In this scenario, it is softswitch, which is giving 183 session progress.

Hi Joey,

If this response does not fit standard, then what should be solution of
this?

On Sun, Mar 11, 2012 at 5:28 PM, Sam <u2nsam at gmail.com> wrote:

> Hi,
>
> This one is know behavior with some of the SBC that for 2-3 ms they
> send 183 false ring,
> on your gateway you can block the 183 without sdp , i guess that will
> work for you .
>
> This is not standard behavior !
>
> Regds
> Sam
>
> On 3/7/12, siddharth sharma <sid77sharma77 at gmail.com> wrote:
> > Hi All,
> >
> > I have one situation here.
> > This is my call flow scenario is as below.
> >
> > UA1 -----> SBC -----> SS -----> MGW ----> Operator 1
> >
> > When, Operator 1 is dialing less numbers, Softswitch is not responding
> "484
> > Address incomplete" directly, but first it sends 183 session
> > progress(without SDP) and then it sends "484 Address Incomplete"
> >
> > Is this correct behaviour according to standard? Should not this calls
> have
> > been rejected directly?
> >
> > I am attaching messages between SBC and SS. Please reply.
> >
> >
> ----------------------------------------------------------------------------------------------------------------------
> > Sequence NO.:1
> > Module:52
> > Time:2012-03-02  16:18:30.00
> > Direction:RECEIVE
> > SOURCE IP:172.16.17.6
> > SOURCE PORT:5060
> > TARGET IP:172.16.31.58
> > TARGET PORT:5060
> > MESSAGE TYPE:INVITE
> > Data:INVITE sip:91730917032 at 172.16.31.58:5060 SIP/2.0
> > Via: SIP/2.0/UDP 172.16.17.6:5060;branch=z9hG4bK1d2e5820e8d1qigmm091.1
> > To: <sip:91730917032 at 114.79.248.6>
> > From: "105163" <sip:12127773456 at 114.79.248.6>;tag=154761817rdb21517
> > Call-ID: 78234899-0-2542362390 at 204.15.169.141
> > CSeq: 1 INVITE
> > Contact: <sip:105163 at 172.16.17.6:5060;transport=udp>
> > Supported: timer
> > Session-Expires: 1800;refresher=uas
> > Min-SE: 90
> > Max-Forwards: 68
> > Content-Type: application/sdp
> > Content-Length: 285
> >
> > v=0
> > o=VSXi 188 1 IN IP4 172.16.17.6
> > s=Session Controller
> > c=IN IP4 172.16.17.6
> > t=0 0
> > m=audio 50736 RTP/AVP 18 5 101
> > a=rtpmap:18 G729/8000
> > a=fmtp:18 annexb=no
> > a=rtpmap:101 telephone-event/8000
> > a=fmtp:101 0-15
> > a=alt:1 1 : A32FC030 000000CF 192.168.14.3 9332
> > a=sendrecv
> >
> >
> ----------------------------------------------------------------------------------------------------------------------
> > Sequence NO.:2
> > Module:52
> > Time:2012-03-02  16:18:30.00
> > Direction:SENDER
> > SOURCE IP:172.16.31.58
> > SOURCE PORT:5060
> > TARGET IP:172.16.17.6
> > TARGET PORT:5060
> > MESSAGE TYPE:1xx
> > Data:SIP/2.0 100 Trying
> > Via: SIP/2.0/UDP 172.16.17.6:5060;branch=z9hG4bK1d2e5820e8d1qigmm091.1
> > To: <sip:91730917032 at 114.79.248.6>
> > From: "105163"<sip:12127773456 at 114.79.248.6>;tag=154761817rdb21517
> > Call-ID: 78234899-0-2542362390 at 204.15.169.141
> > CSeq: 1 INVITE
> > Content-Length: 0
> >
> >
> >
> ----------------------------------------------------------------------------------------------------------------------
> > Sequence NO.:3
> > Module:52
> > Time:2012-03-02  16:18:30.00
> > Direction:SENDER
> > SOURCE IP:172.16.31.58
> > SOURCE PORT:5060
> > TARGET IP:172.16.17.6
> > TARGET PORT:5060
> > MESSAGE TYPE:1xx
> > Data:SIP/2.0 183 Session Progress
> > Via: SIP/2.0/UDP 172.16.17.6:5060;branch=z9hG4bK1d2e5820e8d1qigmm091.1
> > To: <sip:91730917032 at 114.79.248.6>;tag=ac101f3a-19336
> > From: "105163"<sip:12127773456 at 114.79.248.6>;tag=154761817rdb21517
> > Call-ID: 78234899-0-2542362390 at 204.15.169.141
> > CSeq: 1 INVITE
> > Contact: <sip:91730917032 at 172.16.31.58:5060>
> > Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,INFO,REFER,NOTIFY,PRACK,UPDATE
> > Record-Route: <sip:172.16.31.58:5060;lr>
> > User-Agent: Softswitch/1.0.0
> > Content-Length: 0
> >
> >
> >
> ----------------------------------------------------------------------------------------------------------------------
> > Sequence NO.:4
> > Module:52
> > Time:2012-03-02  16:18:31.00
> > Direction:SENDER
> > SOURCE IP:172.16.31.58
> > SOURCE PORT:5060
> > TARGET IP:172.16.17.6
> > TARGET PORT:5060
> > MESSAGE TYPE:4xx
> > Data:SIP/2.0 484 Address Incomplete
> > Via: SIP/2.0/UDP 172.16.17.6:5060;branch=z9hG4bK1d2e5820e8d1qigmm091.1
> > To: <sip:91730917032 at 114.79.248.6>;tag=ac101f3a-19336
> > From: "105163"<sip:12127773456 at 114.79.248.6>;tag=154761817rdb21517
> > Call-ID: 78234899-0-2542362390 at 204.15.169.141
> > CSeq: 1 INVITE
> > User-Agent: Softswitch/1.0.0
> > Content-Length: 0
> >
> >
> >
> ----------------------------------------------------------------------------------------------------------------------
> > Sequence NO.:5
> > Module:52
> > Time:2012-03-02  16:18:31.00
> > Direction:RECEIVE
> > SOURCE IP:172.16.17.6
> > SOURCE PORT:5060
> > TARGET IP:172.16.31.58
> > TARGET PORT:5060
> > MESSAGE TYPE:ACK
> > Data:ACK sip:91730917032 at 172.16.31.58:5060 SIP/2.0
> > Via: SIP/2.0/UDP 172.16.17.6:5060;branch=z9hG4bK1d2e5820e8d1qigmm091.1
> > CSeq: 1 ACK
> > To: <sip:91730917032 at 114.79.248.6>;tag=ac101f3a-19336
> > From: "105163" <sip:12127773456 at 114.79.248.6>;tag=154761817rdb21517
> > Call-ID: 78234899-0-2542362390 at 204.15.169.141
> > Max-Forwards: 68
> > Content-Length: 0
> >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20120312/8314a233/attachment-0002.html>