SIP in higher education

[Candace Holman <>]

Thanks Venky, Joseph, and others from Avaya.  Although there is no
way to change the domain and realm on the Cisco endpoint, I did get it to
register after changing the proxy address from the address of the sip
proxy to the address of the domain.  

This may seem like a strange question - how is the phone getting the
address of the sip proxy in order to register?  Is it from the SRV
record in DNS?

Candace

At 11:56 PM 1/21/2005, Venkatesh Krishnaswamy wrote:

Candace,
Please see below for why you might be seeing the registration problem.

Venky Krishnaswamy
Director, IP Communications Research,
Avaya Labs, Avaya Inc.
Lincroft, NJ 07738


-------- Original Message --------
Subject: RE: [Fwd: [sip.edu] Cisco 7960 and Avaya CCS 2.1 registration problem]
Date: Fri, 21 Jan 2005 23:42:51 -0500
From: Mastrogiulio, Joseph (Joseph)
To: Krishnaswamy, Venkatesh (Venkatesh) , Walker, William J (William)
CC: Zenner, Hal B (Hal)


Venky,

 

The registration is failing because the proxys domain and realm is harvard.edu, and the endpoint is registering into the mysipserver.harvard.edudomain.  Notice that in the WWW-Authenticate header of the 401 response from the proxy the realmand domainvalues are both set to harvard.edu.  This tells me that the proxy is configured with harvard.eduas domain and realm.  The REGISTER request from the endpoint specifies a mysipserver.harvard.eduas the domain.  The mismatch in domains is causing the registration to fail.

 

Make sure that the endpoint is configured with the same domain and realm as the proxy.  Also, make sure that the CCS user and the phone are configured with the same password.  However, this particular registration would fail because of domain mismatch.  So, reconfigure the endpoint with harvard.edudomain and realm and the registration should succeed.

 

Joseph

 

 

-----Original Message-----
From: Krishnaswamy, Venkatesh (Venkatesh)
Sent: Thursday, January 20, 2005 5:08 PM
To: Walker, William J (William); Mastrogiulio, Joseph (Joseph)
Cc: Zenner, Hal B (Hal)
Subject: [Fwd: [sip.edu] Cisco 7960 and Avaya CCS 2.1 registration problem]

 

Bill, Joseph:
I came across this in the SIP.edu mailing list. Is the configuration that they're talking about supported? If so - any idea what the problem could be?
Venky


-------- Original Message --------

Subject:

[sip.edu] Cisco 7960 and Avaya CCS 2.1 registration problem

Date:

Thu, 20 Jan 2005 16:36:57 -0500

From:

Candace Holman

Reply-To:

To:

 

Hi,

I'm getting errors trying to register a Cisco 7960, firmware P0S3-06-3-00 

with an Avaya CCS, version 2.1.0.0-35   There's a continuing auth 

problem.  The exchange of messages is listed below.  Does anyone see the 

problem here?

<REGISTER sip:mysipserver.harvard.edu SIP/2.0

Via: SIP/2.0/UDP myphoneipaddr:5060;branch=z9hG4bK29d84d0b

From: 

To: 

Call-ID: 

CSeq: 227 REGISTER

User-Agent: CSCO/6

Contact: <sip:80550@myphoneipaddr:5060>

Content-Length: 0

Expires: 3600

>, length=<357>

<SIP/2.0 401 Unauthorized

From: 

To: 

Call-ID: 003094c3-18c20002-237f53c2-2ff10850@myphoneipaddr

CSeq: 227 REGISTER

Via: SIP/2.0/UDP myphoneipaddr:5060;branch=z9hG4bK29d84d0b

Content-Length: 0

WWW-Authenticate: Digest 

realm="harvard.edu",domain="harvard.edu",nonce="MTEwNjI1Njc3NDpTREZTZXJ2ZXJTZWNyZXRLZXk6MTUzMzk0MDgxNw==",algorithm=MD5

Server: Avaya Converged Communications Server

Organization: harvard.edu

>, length=535

<REGISTER sip:mysipserver.harvard.edu SIP/2.0

Via: SIP/2.0/UDP myphoneipaddr:5060;branch=z9hG4bK4f5a0744

From: 

To: 

Call-ID: 003094c3-18c20002-237f53c2-2ff10850@myphoneipaddr

CSeq: 228 REGISTER

User-Agent: CSCO/6

Contact: <sip:80550@myphoneipaddr:5060>

Authorization: Digest 

username="80550",realm="harvard.edu",uri="sip:mysipserver.harvard.edu",response="cb7a0f964021ad9d60c5e312e887b17a",nonce="MTEwNjI1Njc3NDpTREZTZXJ2ZXJTZWNyZXRLZXk6MTUzMzk0MDgxNw==",algorithm=MD5

Content-Length: 0

Expires: 3600

>, length=<571>

<SIP/2.0 500 Internal Server Error

From: 

To: 

Call-ID: 003094c3-18c20002-237f53c2-2ff10850@myphoneipaddr

CSeq: 228 REGISTER

Via: SIP/2.0/UDP myphoneipaddr:5060;branch=z9hG4bK4f5a0744

Content-Length: 0

Organization: harvard.edu

Server: Avaya Converged Communications Server

>, length=398

=====================================================================

Candace Holman

617-384-6665

Harvard University Information Systems

60 Oxford Street

Cambridge, MA 02138