[sr-dev] [ openser-Bugs-3018975 ] SIPv6 UA can't receive a 423 (Interval Too Brief) response

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Bugs item #3018975, was opened at 2010-06-21 17:55
Message generated for change (Tracker Item Submitted) made by xhujohnson
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Category: modules
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: xhu xhu (xhujohnson)
Assigned to: Nobody/Anonymous (nobody)
Summary: SIPv6 UA can't receive a 423 (Interval Too Brief) response 

Initial Comment:
SIPv6 UA can't receive a 423 (Interval Too Brief) response from openser-1.3.4-12.fc13.i686 SIPv6 Registrar Server when expiration of a REGISTER request is less than a registrar-configured minimum.The details can be seen as follows. Is it a bug or can be resolved by modifying configuration file?  
1 Test topology:

                   NUT(REG && PX)             UA11                                      UA12                 DNS
                        |                                       |                                           |                              |
IP          : 3ffe:501:ffff:50::50       3ffe:501:ffff:1::1                        3ffe:501:ffff:2::2          3ffe:501:ffff:4::1
aor-uri     : ss.under.test.com       UA11 at under.test.com             UA12 at under.test.com
contact-uri :                                 UA11 at node.under.test.com     UA12 at node11.under.test.com 

2 the tcpdump file can be seen in "SIP Registrar- Expiration of REGISTER request less than a registrar-configured minimum" attachment

3 openser-1.3.4-12 configuration file can be seen in openser.cfg attachment. 
I have added the following block into the openser.cfg
"
modparam("registrar", "default_expires", 3600)
modparam("registrar", "min_expires", 60)
"

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