[Sip-implementors] SDP answer with c=0.0.0.0 and a=sendrecv behavior

2017-07-07 Thread Sourav Dhar Chaudhuri
Hi, There is a B2B sitting between  A (Caller) and B ( callee) 1)     A  has sent INVITE without SDP towards B 2)    B has responded  200OK with SDP offer for INVITE to  A. Refer below the SDP offer v=0o=- 16408314 16408314 IN IP4 ABC.DEF.GH.IJs=-c=IN IP4 192.168.119.69t=0 0a=sendrecvm=audio 386

[Sip-implementors] SDP answer with c=0.0.0.0 and a=sendrecv behavior

2017-07-07 Thread Sourav Dhar Chaudhuri
Hi, There is a B2B sitting between  A (Caller) and B ( callee) 1)     A  has sent INVITE without SDP towards B 2)    B has responded  200OK with SDP offer for INVITE to  A. Refer below the SDP offer v=0o=- 16408314 16408314 IN IP4 ABC.DEF.GH.IJs=-c=IN IP4 192.168.119.69t=0 0a=sendrecvm=audio

[Sip-implementors] SDP answer with c=0.0.0.0 and a=sendrecv

2017-07-04 Thread Sourav Dhar Chaudhuri
Hi, There is a B2B sitting between  A (Caller) and B ( callee) 1)     A  has sent INVITE without SDP towards B 2)    B has responded  200OK with SDP offer for INVITE to  A. Refer below the SDP offer v=0o=- 16408314 16408314 IN IP4 ABC.DEF.GH.IJs=-c=IN IP4 192.168.119.69t=0 0a=sendrecvm=audio 38

[Sip-implementors] SDP answer with c=0.0.0.0 and a=sendrecv

2017-06-30 Thread Sourav Dhar Chaudhuri
Hi, There is a B2B sitting between  A (Caller) and B ( callee) 1)     A  has sent INVITE without SDP towards B 2)    B has responded  200OK with SDP offer for INVITE to  A. Refer below the SDP offer v=0o=- 16408314 16408314 IN IP4 ABC.DEF.GH.IJs=-c=IN IP4 192.168.119.69t=0 0a=sendrecvm=audio 38

[Sip-implementors] Wrong Server header value resulting no ACK

2016-08-26 Thread Sourav Dhar Chaudhuri
Hi,   Please refer the below diagram   UAC   INVITE> UAS   UAC <-100 Trying---

[Sip-implementors] UAS behavior on receiving PRACK request after failed final response for INVITE

2016-08-18 Thread Sourav Dhar Chaudhuri
 Hi ,  1) UAC has sent an INVITE request with header  Supported: 100rel  and also with SDP offer 2) UAS  sends a reliable provisional response with 180 Ringing   with Require: 100rel and also with SDP answer  3) But before even receiving PRACK by UAS for above step  , UAS sends a final failure 4x

Re: [Sip-implementors] ABNF Grammar Parsing issue for P-Served-User

2016-06-29 Thread Sourav Dhar Chaudhuri
?  Regards, Sourav On Wednesday, 29 June 2016 7:48 PM, Sourav Dhar Chaudhuri wrote: Hi Brett,  Thanks a lot for your immediate response.   Unfortunately, I did not  get your explanation clearly "Based upon what you supplied, you need to implement RFC 5502 errata 4648concerning

Re: [Sip-implementors] ABNF Grammar Parsing issue for P-Served-User

2016-06-29 Thread Sourav Dhar Chaudhuri
Hi Brett,  Thanks a lot for your immediate response.   Unfortunately, I did not  get your explanation clearly "Based upon what you supplied, you need to implement RFC 5502 errata 4648concerning when Name-Addr must be used...If you implement the errata, the brackets will allow the header to b

[Sip-implementors] ABNF Grammar Parsing issue for P-Served-User

2016-06-29 Thread Sourav Dhar Chaudhuri
Hi,   Actually, I am facing issue with the request having P-Served-User in my request. Remote node is failing  for that request  with my below mentioned value telling Parser error for the below example.  sip:+ACE34610520436;cic=+7...@tqf01.test.abc;sescase=term;regstate=unreg Moreover another thi

Re: [Sip-implementors] Offer Answer Model During Early Dialog

2015-12-18 Thread Sourav Dhar Chaudhuri
the other responses to this query. See RFC6337 for more detail.     Thanks,     Paul On 12/18/15 7:45 AM, Sourav Dhar Chaudhuri wrote: > Hi,  Please refer the diagram below Callflow diagram > >  1)  A  -    INVITE [ Support: 100 rel] without SDP  >--

[Sip-implementors] Offer Answer Model During Early Dialog

2015-12-18 Thread Sourav Dhar Chaudhuri
Hi,   Please refer the diagram below Callflow diagram  1)  A   -    INVITE [ Support: 100 rel] without SDP   -->  B  2) A   <--   180 Ringing [Require: 100 rel] with SDP offer B 3)  A      PRACK without SDP   --

[Sip-implementors] From Header value is getting changed from 100 trying to 200OK

2015-06-19 Thread Sourav Dhar Chaudhuri
Hi,    I just need clarification is the below mentioned scenario will work properly UAC1  sending INVITE request to UAS1 -- From: "+351964901478" ;tag=AUA401YVCeghCjaA UAS1 is responding 100 Truing for that INVITE to UAC1 ---

Re: [Sip-implementors] To tag changing during Call Forwarding

2015-05-05 Thread Sourav Dhar Chaudhuri
On 5/5/15 4:21 AM, Sourav Dhar Chaudhuri wrote: > Hi Paul, >    Thanks for your response. So it means the Call Forwarding always > need minimum requirement that Caller [UAC] must have support for > handling forking response in case SBC does not have the "fix" you mentioned. &g

Re: [Sip-implementors] To tag changing during Call Forwarding

2015-05-05 Thread Sourav Dhar Chaudhuri
ted in RFC 5359.  Is support to handle forking response is mandatory requirement for a SIP Caller [UAC]? Thanks,Sourav On Monday, 4 May 2015 9:38 PM, Paul Kyzivat wrote: On 5/4/15 10:49 AM, Sourav Dhar Chaudhuri wrote: > Hi ,  I have a question on To tag change during Ca

[Sip-implementors] To tag changing during Call Forwarding

2015-05-04 Thread Sourav Dhar Chaudhuri
Hi ,   I have a question on To tag change during Call Forwarding [Unconditional / Busy/ No Answer]. As per RFC 5359, it can be noticed that To tag value is getting changed from 181 Call is being forwarded to 180 Ringing response during Call Forwarding.     Now my query is if a caller does not su

[Sip-implementors] Can contact header changed value from INVITE than REGISTER request cause call failure

2015-01-15 Thread Sourav Dhar Chaudhuri
Hi,  Please refer the below example. +381114400301 is getting registered. All Mandatory header is not mentioned in the below example REGISTER request of +381114400301 From: ;tag=h7g4Esbg_3a16584d1dTo: sip:+381114400...@sluzbeni.ims.telenor.rs:5060Contact: "+381114400301" ;expires=3600;+sip.in

Re: [Sip-implementors] Query regarding SDP negotiation

2014-11-05 Thread Sourav Dhar Chaudhuri
sage- > From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip- > implementors-boun...@lists.cs.columbia.edu] On Behalf Of Sourav Dhar > Chaudhuri > Sent: Tuesday, November 04, 2014 2:20 PM > To: ankur bansal > Cc: sip-implementors@lists.cs.columbia.edu > Subject: R

Re: [Sip-implementors] Query regarding SDP negotiation

2014-11-04 Thread Sourav Dhar Chaudhuri
this answer sending telephony events with payload no 101 instead of 99 which is expected by UE B. And UE B needs to send telephony events with payload no 99 towards UE A. Hope this helps Thanks & Regards Ankur Bansal On Tue, Nov 4, 2014 at 9:12 PM, Sourav Dhar Chaudhuri wrote: Hi, >

[Sip-implementors] Query regarding SDP negotiation

2014-11-04 Thread Sourav Dhar Chaudhuri
swer two codec [ 8 101 ] with attribute for only [ 101 ]. The rtpmap is also for only [ 101 ]. So is the A is behaving correctly ? Whether there is failure in SDP negotiation? If yes then why? Regards, Sourav Dhar Chaudhuri ___ Sip-impleme

Re: [Sip-implementors] How to send BYE request using REFER method

2014-10-29 Thread Sourav Dhar Chaudhuri
=BYE Or I have not understood correctly. Something else u want to say? Kindly guide me Thanks Sourav Dhar Chaudhuri On Wednesday, 29 October 2014 5:00 PM, Brett Tate wrote: > 1) User A created a Dialog with User B. [ Call ID: AB, To tag: b1, from tag: a1] > > 2) User A cre

[Sip-implementors] How to send BYE request using REFER method

2014-10-28 Thread Sourav Dhar Chaudhuri
n D will understand for which Dialog the BYE request need to be send since there is no details of the Dialog is mentioned in Refer-To header? Thanks Sourav Dhar Chaudhuri ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.e

Re: [Sip-implementors] Supported with replaces parameter is Mandatory to support REFER request

2014-10-28 Thread Sourav Dhar Chaudhuri
for replaces header. So in that case how does the User agent B will behave when it will receive the REFER request which is having existing Dialog information in that Refer to header with replaces parameter? Thanks Sourav Dhar Chaudhuri On Tuesday, 28 October 2014 5:23 PM, Vivek Batra wrote

[Sip-implementors] Supported with replaces parameter is Mandatory to support REFER request

2014-10-28 Thread Sourav Dhar Chaudhuri
this case the Use Agent will not support that REFER request? is there any RFC reference.. I have not got anything relevant in RFC 3515 for this. Thanks Sourav Dhar Chaudhuri ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https

Re: [Sip-implementors] can CRBT palyed without Reliable Provisonal response.

2014-10-15 Thread Sourav Dhar Chaudhuri
yzi...@alum.mit.edu <mailto:pkyzi...@alum.mit.edu>] > Sent: Wednesday, October 15, 2014 5:47 PM > To: sip-implementors@lists.cs.columbia.edu > <mailto:sip-implementors@lists.cs.columbia.edu> > Subject: Re: [Sip-implementors] can CRBT palyed without Reliable > Provisonal respo

[Sip-implementors] can CRBT palyed without Reliable Provisonal response.

2014-10-15 Thread Sourav Dhar Chaudhuri
sional response? Regards Sourav Dhar Chaudhuri ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors

[Sip-implementors] SDP reply incident

2014-08-07 Thread Sourav Dhar Chaudhuri
In that A will send its MGW's IP in C=1.1.1.2 Connection Address: 1.1.1.2 Owner Address: 1.1.1.2 but problem is, when B replies in 200OK ... in that.. B is sending Owner address as 2.2.2.2 and connection address as 2.2.2.1 Owner address is B's CA, not MGW Is this correct response.

Re: [Sip-implementors] Call transfer for an attended call without using REFER method possible?

2014-08-05 Thread Sourav Dhar Chaudhuri
Hi Paul,     Thanks a lot for your detailed response. You have answered all my doubts.       I am really grateful for your email. Thanks & Regards, Sourav Dhar Chaudhuri On Tuesday, 5 August 2014 8:11 PM, Paul Kyzivat wrote: On 8/4/14 10:12 AM, Sourav Dhar Chaudhuri wrote: > Hi, &

[Sip-implementors] Call transfer for an attended call without using REFER method possible?

2014-08-04 Thread Sourav Dhar Chaudhuri
Hi,    Is there any way when a answered call  [ 200OK is already provided for initial INVITE and ACK also sent] can be transferred without using REFER method?   If it is possible without REFER then please let me know required procedure. Thanks, Sourav Dhar Chaudhuri

[Sip-implementors] Query regarding IOI inP-Charging-Vector

2014-07-11 Thread Sourav Dhar Chaudhuri
Hi, Is it possible to configure custom IOI and/or FNI filed in P-Charging-Vector in SIP message header per traffic route? Thanks & Regards, Sourav Dhar Chaudhuri ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu h

Re: [Sip-implementors] Difference Between SIP registration & reregistration

2014-07-01 Thread Sourav Dhar Chaudhuri
is considered as a reregistration. In any other case is possible where any REGISTER request will be considered as   reregistration ?  Actual I am asking reregistration terminology  specifically due to Authorization implementation for reregistration. Thanks & Regards Sourav Dhar Chaud

[Sip-implementors] Difference Between SIP registration & reregistration

2014-07-01 Thread Sourav Dhar Chaudhuri
Expiry = 0 . Whether UE will be deregistered?       Thanks & Regards, Sourav Dhar Chaudhuri ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors

[Sip-implementors] Parsing failure for a=fmtp:34 QCIF=2/MaxBR=520

2014-01-08 Thread Sourav Dhar Chaudhuri
getting the exact reference from any RFC. Thanks & regards Sourav Dhar Chaudhuri ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors

Re: [Sip-implementors] Expected response for UPDATE request sent after 200OK of INVITE request

2013-10-29 Thread Sourav Dhar Chaudhuri
wrote: On 10/29/13 9:55 AM, Sourav Dhar Chaudhuri wrote: > Hi, >    I need the expected response for the Call scenario mentioned below > > 1)  UAC sends INVITE request with SDP > > 2)  UAS sends 180 ringing to UAC > > 3) Then UAS sends 200 OK  fo with SDP response INVITE . &g

[Sip-implementors] Expected response for UPDATE request sent after 200OK of INVITE request

2013-10-29 Thread Sourav Dhar Chaudhuri
mentioned in STEP 1 towards UAS. Is it a valid behavior? 5) Now what should be the response  from  UAS for that UPDATE request ??   After sending the UPDATE request UAC has also also ACK request for 200 OK response. Thanks & Regards Sourav Dhar Chaud

Re: [Sip-implementors] What is the server side behavior if PRACK with new SDP receives (Urgent!!!!!!)

2009-04-30 Thread Sourav Dhar Chaudhuri
hi, UAS MUST not send 200OK for PRACK and must ignore the PRACK. UAS . As per RFC 3262 section 5 All user agents that support this extension MUST support all offer/answer exchanges that are possible based on the rules in Section 13.2 of RFC 3261, based on the existence of INVITE and PRAC

[Sip-implementors] What is rinstance parameter in Contact header of REGISTER generated by X-lite Softphone

2009-04-15 Thread Sourav Dhar Chaudhuri
t will be really helpful if anybody please explain with example that is with call flow? Thanks Sourav Dhar Chaudhuri Cricket on your mind? Visit the ultimate cricket website. Enter http://beta.cricket.yahoo.com ___ Sip-implementors mail

Re: [Sip-implementors] UA behaviour on recieving INVITE withoutmax-forwards header

2008-09-25 Thread Sourav Dhar Chaudhuri
ipos <[EMAIL PROTECTED]> To: Sourav Dhar Chaudhuri <[EMAIL PROTECTED]>; Navneet Gupta <[EMAIL PROTECTED]>; sip-implementors@lists.cs.columbia.edu Sent: Thursday, 25 September, 2008 1:52:29 PM Subject: RE: [Sip-implementors] UA behaviour on recieving INVITE withoutmax-forwards header

Re: [Sip-implementors] UA behaviour on recieving INVITE withoutmax-forwards header

2008-09-25 Thread Sourav Dhar Chaudhuri
Sipos <[EMAIL PROTECTED]> To: Sourav Dhar Chaudhuri <[EMAIL PROTECTED]>; Navneet Gupta <[EMAIL PROTECTED]>; sip-implementors@lists.cs.columbia.edu Sent: Thursday, 25 September, 2008 1:01:19 PM Subject: RE: [Sip-implementors] UA behaviour on recieving INVITE withoutmax-forwards head

Re: [Sip-implementors] UA behaviour on recieving INVITE without max-forwards header

2008-09-24 Thread Sourav Dhar Chaudhuri
Hi Navneet, Sip UA(End Point) behavior on receiving INVITE without max-forwards header depends on implementation of backward compatibly with RFC 2543. If the Sip UA(End Point) backward compatible with RFC 2543 then it MUST follow step (d) said by you. RFC 2543 does mandate Max-

Re: [Sip-implementors] Can multiple Via header be present in initialINVITE request ?

2008-09-18 Thread Sourav Dhar Chaudhuri
ultiple "Via header" value in initial INVITE request among which top "Via header" value has to be selected Thanks Sourav - Original Message From: Rockson Li (zhengyli) <[EMAIL PROTECTED]> To: Sourav Dhar Chaudhuri <[EMAIL PROTECTED]>; sip-implementors@lists.

[Sip-implementors] Can multiple Via header be present in initial INVITE request ?

2008-09-18 Thread Sourav Dhar Chaudhuri
Hi, Can multiple Via header be present in initial INVITE request ? I mean to say when first time INVITE request is generated from UAC without traversing any PROXY can contain multiple Via header ? If yes then what is the need of having multiple Via header in initial INVITE request? Than

Re: [Sip-implementors] Timestamp header in INVITE message

2008-07-10 Thread Sourav Dhar Chaudhuri
Hi Jagan, As per ABNF grammar mentioned in RFC 3261 that Timestamp header can contain value 0 but no negative value Timestamp = "Timestamp" HCOLON 1*(DIGIT)[ "." *(DIGIT) ] [ LWS delay ] delay = *(DIGIT) [ "." *(DIGIT) ] DIGIT = %x30-39   ;0-9 Regards Sour

[Sip-implementors] How to terminate an INVITE without getting any response

2008-04-10 Thread Sourav Dhar Chaudhuri
n Caller A has to suffer even knowing at very early stage of call also he does not have any scope to rectify it. But If start only after sending ACK for 200OK of INVITE this scenario can be prevented by sending BYE for 200OK instead of ACK Regards SOURAV DHAR CHAUDHURI Bring your gang

Re: [Sip-implementors] [SIPForum-discussion] For sending PRACK for a RPR is it mandatory to have Supported:100rel in IN

2008-03-28 Thread Sourav Dhar Chaudhuri
not understand that RPR. Server B will be also not able to send Final response for INVITE as his RPR containing a offer not got any answer. Call cannot be established. So server B will discard the INVITE with Require:100rel but no Supported:100rel as a Bad request Thanks SOURAV DHAR CHAUD

[Sip-implementors] Server behavior on receiving same INVITE request differing only in the CSeq value,

2008-03-27 Thread Sourav Dhar Chaudhuri
Hi, I had a doubt regarding the following: If the server recieves the same INVITE request differing only in the CSeq value, what should be the ideal behavior? Should this be treated as a new call? THANKS SOURAV DHAR CHAUDHURI Get the freedom to save as many mails as you wish. To know

Re: [Sip-implementors] For sending PRACK for a RPR is it mandatory to have Supported:100rel in INVITE while it already contains Require:100rel in INVITE

2008-03-27 Thread Sourav Dhar Chaudhuri
Supported:100rel.) So now callee B will send RPR or not as it has the feature Require:100rel but no Supported:100rel? - Original Message From: Paul Kyzivat <[EMAIL PROTECTED]> To: Sourav Dhar Chaudhuri <[EMAIL PROTECTED]> Cc: sip-implementors@lists.cs.columbia.edu Sent: Thurs

Re: [Sip-implementors] For sending PRACK for a RPR is it mandatory to have Supported:100rel in INVITE while it already contains Require:100rel in INVITE

2008-03-27 Thread Sourav Dhar Chaudhuri
:100rel Regards SOURAV DHAR CHAUDHURI - Original Message From: srinivas <[EMAIL PROTECTED]> To: Sourav Dhar Chaudhuri <[EMAIL PROTECTED]>; sip-implementors@lists.cs.columbia.edu Sent: Thursday, 27 March, 2008 6:35:29 PM Subject: RE: [Sip-implementors] For sending PRACK for

[Sip-implementors] For sending PRACK for a RPR is it mandatory to have Supported:100rel in INVITE while it already contains Require:100rel in INVITE

2008-03-27 Thread Sourav Dhar Chaudhuri
:100rel in its INVITE request. I am asking the second question because if that thesame capability is present in Callee so whether after receiving any INVITEwith Require:100rel , whether callee will be not be able to send RPR. Thanks SOURAV DHAR CHAUDHURI Did you know? You can