[Sip-implementors] Call Transfer Scenario : Refer-To Containingincorrect URI

TECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jitendra Singh Bhadoriya Sent: Monday, May 19, 2008 3:27 PM To: Sip-implementors@lists.cs.columbia.edu Subject: [Sip-implementors] Call Transfer Scenario : Refer-To Containingincorrect URI Hi, In the call-transfer scenario in which A calls B and B s

[Sip-implementors] Call Transfer Scenario : Refer-To Containing incorrect URI

Hi, In the call-transfer scenario in which A calls B and B sends REFER to A to transfer the call to C, but the REFER Request contains some invalid URI in the Refer-To header, then in this case how should A respond to the REFER Request. In this case the A will not be able to send th

Re: [Sip-implementors] 200 OK Retransmission

between sending last 2xx (sent at 31.5 sec) and the BYE request(sent for session termination). Thanks Jitendra. -Original Message- From: JEEVANANDHAM KARTHIC KUMAR [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 07, 2008 3:40 PM To: Jitendra Singh Bhadoriya Cc: sip-implementors

Re: [Sip-implementors] 200 OK Retransmission

07, 2008 3:05 PM To: Jitendra Singh Bhadoriya; sip-implementors@lists.cs.columbia.edu Subject: Re: [Sip-implementors] 200 OK Retransmission Hi, UAS should retransmit 200 OK at the interval of Timer G(initially T1 then 2*T1) up to the timer H (64*T1). Ref RFC 3261: A Table of Timer Values Timer

[Sip-implementors] 200 OK Retransmission

Hi, When a UAS receives INVITE, it responds with 200 OK. But in case, the UAC does Not sends an ACK for the 200 OK, then how many times the 200 OK is retransmitted and At what interval this re-transmission happens (Assuming non-reliable transport such as UDP). >From RFC-3261 I am on

[Sip-implementors] Can a Refer-To header contain Tel URI.

Hi, Can a Refer-To header contain a tel URI. Regards, Jitendra. ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors

[Sip-implementors] Authorization and Proxy-Authorization in the same request

Hi, Is it possible and logical to send both Authorization and Proxy-Authorization headers in the same request(say INVITE). For example if the INVITE is first authenticated by a proxy then retry INVITE request is sent with Proxy-Authorization header With the clients credentials. Now s

[Sip-implementors] Authorization and Proxy-Authorization in the same request

Hi, Is it possible and logical to send both Authorization and Proxy-Authorization headers in the same request(say INVITE). For example if the INVITE is first authenticated by a proxy then retry INVITE request is sent with Proxy-Authorization header With the clients credentials. Now s

[Sip-implementors] Proxy-Authorization in initial INVITE.

Hi, Can anyone please tell me whether a SIP UAC can send Proxy-authorization header (Assuming Digest authentication scheme) in the initial outgoing INVITE and If it can, that which parameters should it fill in the Proxy-Authorization header. Also can a UAC send Authorization Head

[Sip-implementors] What happens if ACK is never sent for 200 OK

Hi Friends, Can anyone please tell me what happens if the ACK is never sent by the UAC to the UAS. Will there be some timeout at UAS by which the call at the UAS will be released. The scenario is like this 1. UA1 sends INVITE to UA2 through a proxy. 2. UA2 answers the I

Re: [Sip-implementors] Different transport in same call.

:[EMAIL PROTECTED] Sent: Friday, December 07, 2007 11:31 AM To: Jitendra Singh Bhadoriya; sip-implementors@lists.cs.columbia.edu Cc: [EMAIL PROTECTED] Subject: RE: [Sip-implementors] Different transport in same call. Hi Jiten, ACK is sent to the contact header of 200INV, and this header is

[Sip-implementors] Different transport in same call.

Hi friends, Can anyone please tell me if a UAS receives the INITIAL INVITE on UDP and after that subsequent ACK on TCP then will it be able to process that ACK. The scenario is UAC sends INVITE to a proxy on TCP. Proxy forwards INVITE to the UAS on UDP. UAS sends 200 OK on UDP to th

[Sip-implementors] How to determine transport to use from Route header

Hi, Can anyone please tell me How to find out the transport protocol to send the request, when we have to use the Route header for determining next hop. Suppose we have a Route header with the value Route: , Now because the first route value contains the lr parameter so th

[Sip-implementors] Procedure for ENUM Look Up

Hi, ENUM (E.164 Number Mapping, RFC 3761 ) is a system that uses DNS to translate telephone numbers, like '+12025332600', into URIs (Uniform Resource Identifiers, RFC 2396

[Sip-implementors] Procedure for ENUM Look Up

arkup/rfcmarkup.cgi?rfc=2396> ), like 'sip:[EMAIL PROTECTED]'. My question is 'Is there any algorithm to perform the ENUM look up of a number and map it to a URI without Using the algorithm given in the RFC-3761. Thanks & Regards, Jitendra Singh Bhadoriya S

Re: [Sip-implementors] Doubt regarding sequence numbers

The request will be rejected by the Stack itself. Because whatever SIP Stacks developer have already taken care of the protocol rules be implemented in the stack itself. However if any body want to develop a stack In which the stack developer intends this rule to be handled by the stack user then h

Re: [Sip-implementors] REGISTER message

As per the RFC 3261 the To header field contains the address of Record of whose registration is to be created, queried or modified. And the From header field contains the address of record of the person responsible for the registration. The value is the same as the To header field value, unless th

[Sip-implementors] How to genearte icid-value of P-Charging-Vector header

Hi, Can anybody please tell me how can we generated icid-value that is used in the P-Charging-Vector header field. Is there any standard method/rule for generating this value. The P-Charging Vector header field contains the IMS Charging Identity (ICID) value. As Per the RFC 3455 I

[Sip-implementors] Use of nonce,nextnonce and cnonce parameters

Hi, Can anybody please tell me what is the use of the nonce, nextnonce and Cnonce parameters in the header fields like Authorization, Authentication-Info, Proxy-Authenticate, Proxy Authorization, WWW-Authenticate. Also please tell me what is the use of nc, response, opaque parameters i