[SIPForum-discussion] Regarding user registratin

[mjhorse]

Hi,
  
 If I rightly understand your intention, you want to cancel a endpoint with that particular capability?or just change it's capability?
  
 According to RFC 3840, a endpoint with some kinds of capability should have a Contact like this:
  
    Contact: <sip:user at host.example.com>;audio;video
     ;actor="msg-taker";automata;mobility="fixed"
     ;methods="INVITE,BYE,OPTIONS,ACK,CANCEL"
  
 There are lot of tags discussed in this rfc, Is focuse(to be a central point in a conference) e.g.. So I think there are to alternative operations to change it's capability: 
 The first is very obvious, just deregistering the former Contact and registering a new one with those capabilities your want. 
  
 The second one which I'm not sure to be a standard operation is to register the Contact with capabilities from which you remove what you don't want to be in place. But I think it's depends on the common understanding between the server and the UA about this operation so the serve can update it's registration. I don't know whether there is such kind of implementation(you can look throught rfc3840 to see whether there is such a specification). If not, I think the first one can be used universally.
  
 Some body correct me if I misunderstood
 ------------------
  by mj

  
  
 ------------------ Original ------------------
  From:  "neeraj"<neeraj.jain at samsung.com>;
 Date:  Tue, Jul 29, 2008 01:16 PM
 To:  "mjhorse"<mjhorse at qq.com>; 
 Cc:  "discussion"<discussion at sipforum.org>; 
 Subject:  Re: Re:[SIPForum-discussion] Regarding user registratin

  
  Hi mj,
  
 would you tell me how to de-register a capcbility instead of a URI. I have multiple capability associated with the single URI. So I want to deregiter for a single capability so I can stop receiving call for that particular capability.
  
 Thanks in advance,
 Neeraj
  ----- Original Message ----- 
 From: mjhorse 
 To: neeraj ; discussion 
 Sent: Monday, July 28, 2008 10:18 PM
 Subject: Re:[SIPForum-discussion] Regarding user registratin
 

 Hi,
 Registration Cancellation is provided by REGISTER mesage with Contact and Expire fields, while Expire is 0 and Contact indicates the endpoint to be deregistered. If you want to cancel all URI, Contact should be a "*".
 using this syntax, it's at your disposal to determine how to deregister your URI.
  
 ------------------
  by mj

  
  
 ------------------ Original ------------------
  From:  "neeraj"<neeraj.jain at samsung.com>;
 Date:  Mon, Jul 28, 2008 09:03 PM
 To:  "discussion"<discussion at sipforum.org>; 
 
 Subject:  [SIPForum-discussion] Regarding user registratin

  
  Hi all,
  
 I have a doubt regarding user registration. When I am registering a user using pui at example.com and ICSI in the contatct header field. if the registration is successful , my UE will start receiving call foe that particular ICSI. 
 Now my application support 2 ICSI value and I want to re register the user again. so how should I go about this. 
 Should I include both the ICSI value in the contact header for new REGISTER message or only new ICSI is enough. 
  
 If I have to include both ICSI in the register message than how should I de register the user for only one ICSI parameter. 
  
 Thanks in advance
  
 Neeraj Jain
Senior Software Engineer | Wireless Terminal Division | Samsung India Software Operations (P) Limited
#66/1, Block ?B?, Bagmane Tech Park
CV Raman Nagar, Bangalore ? 560093
(+91) 9886271141 / neeraj.jain at samsung.com
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