[SIPForum-discussion] 185 ringing / 199 trying

Fri Apr 25 11:11:40 UTC 2008

Hi  malay

What ever william asked I tried in that way through voice tool

The call is success fully through...(I think it is only because of
provisional responses)

But if u eneabled prack then in that case the call may not be through.

Same thing I tried in the 200 Ok 

I m sending 203 OK rather than 200 OK at that time I observed that the
call was not through the proxy

What error I got mension bellow

A-------INV-------------->B
100(from softswitch)
180(from B)
B-------203 OK-------->softswitch
softswitch-----------(SIP/2.0 203 Unknown Status Code)---------->A

Privious 2 steps repeted again and again

Request time out(no ACK)

FAILED

BYE(retransmit no 200 ok for bye)

This is from trace

Go through it and let me know if u hav any doubt.........

Thanks in a advance........

Thanks & regards,

Saroj Kumar Nayak || IMS APPLICATION|| Alcatel-Lucent 

Alcatel Devlopment INDIA, Block A&B ,Plot no 25

Sector 18 ,Electronic City ,GURGOAN 122015

Office:  0112 44654000  | Extn: 4821

Email: saroj_nayak.kumar at alcatel-lucent.com

www.alcatel-lucent.com

-----Original Message-----
From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of Karthik Ramiya
Sent: Friday, April 25, 2008 3:51 PM
To: Malay Si; gaurav katiyar; mwilliam prusty; discussion at sipforum.org
Subject: Re: [SIPForum-discussion] 185 ringing / 199 trying

Hi Malaysi,

       I agree with you. But here it is clearly defined like the reason
phase is 185 ringing / 199 trying, So you mean like irrespective of the
reason phases, it wll jus look into the 1XX response and treat it as
183?? In that case, it means that there wont be any recognition for the
reason phase rite.

Please clarify,

Thanks and regards,
Karthik

________________________________
From: discussion-bounces at sipforum.org [discussion-bounces at sipforum.org]
On Behalf Of Malay Si [malaysi at techmahindra.com]
Sent: Friday, April 25, 2008 2:20 PM
To: gaurav katiyar; mwilliam prusty; discussion at sipforum.org
Subject: Re: [SIPForum-discussion] 185 ringing / 199 trying

If a SIP element gets a response which is having unknown "reason-
phrase" (not define in RFC 3261) then the element treated the response
as follows.

Wrong 1xx series---183(session progress) Wrong 2xx series---200 Wrong
3xx series---300 Wrong 4xx series---400 Wrong 5xx series---500 Wrong 6xx
series---600

In your case A will treat the response as a 183 (session progress) and
will wait for the final response.

Thanks & Regards,

| Malay Si  | Tech Mahindra|  Bangalore| INDIA
* Office: +91 80 4041 7000 |  Extn: 7890 |
Email: malaysi at techmahindra.com<mailto:malaysi at techmahindra.com>
www.techmahindra.com<http://www.techmahindra.com/>

________________________________
From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of gaurav katiyar
Sent: Friday, April 25, 2008 1:47 PM
To: mwilliam prusty; discussion at sipforum.org
Subject: Re: [SIPForum-discussion] 185 ringing / 199 trying

Sip does not allow to send response for a response. wait for final
response or u can send cancel to terminate call as per your application
requirements.

Gaurav

mwilliam prusty <callwilliam90653 at rediffmail.com> wrote:

Hi

Can any one tell me suppose A is sending Invite request to B. B in
steadof giving 180 ringing , it is giving 185 ringing( same message
format as 180 ringing ) or 199 trying ( which has same message format as
180 ringing)  In this case whether A  will give any error response

Regs
William

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Gaurav Katiyar
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