[SR-Users] Outbound and Registrar. No binding update

José Luis Millán jmillan at aliax.net
Thu Jul 26 23:30:39 CEST 2012


Hi,

I'm using Kamilio 3.3.0  as registrar server. I`m using an outbound proxy
so 'use_path' parameter or 'registrar' module is enabled.

According to RFC 5626, a re-registration from a specific combination of
AoR, instance_id and reg_id must update the binding.

""
   If the registrar receives a re-registration for a specific
   combination of AOR, and instance-id and reg-id values, the registrar
   MUST update any information that uniquely identifies the network flow
   over which the request arrived if that information has changed, and
   SHOULD update the time the binding was last updated.
""

In my installation this is not fullfilled as shown:

""
        AOR:: jmillan
                Contact:: sip:jmillan at MY_IP;transport=ws;ov-ob=a570655c14 Q=
                        Expires:: 181
                        Callid:: 1hgq3khalq2rzfr
                        Cseq:: 108
                        User-agent:: JsSIP 0.1.0

Path:: <sip:OUTBOUND_IP:9090;transport=tcp;lr;ovid=de0c0b9f>,<sip:a570655c14 at OUTBOUND_IP
:10080;transport=ws;lr;ovid=de0c0b9f;ob>
                        State:: CS_SYNC
                        Flags:: 0
                        Cflag:: 0
                        Socket:: tcp:KAM_IP:5060
                        Methods:: 783
                        Ruid:: uloc-50119d99-328e-1

Instance:: <urn:uuid:38dce009-ae1f-4fd1-91dc-99ed9affddc1>
                        Reg-Id:: 1
                Contact:: sip:jmillan at MY_IP;transport=ws;ov-ob=1dd97b4d51 Q=
                        Expires:: 193
                        Callid:: 1hgq3khalq2rzfr
                        Cseq:: 110
                        User-agent:: JsSIP 0.1.0

Path:: <sip:OUTBOUND_IP:9090;transport=tcp;lr;ovid=de0c0b9f>,<sip:1dd97b4d51 at OUTBOUND_IP
:10080;transport=ws;lr;ovid=de0c0b9f;ob>
                        State:: CS_SYNC
                        Flags:: 0
                        Cflag:: 0
                        Socket:: tcp:KAM_IP:5060
                        Methods:: 783
                        Ruid:: uloc-50119d99-3290-2

Instance:: <urn:uuid:38dce009-ae1f-4fd1-91dc-99ed9affddc1>
                        Reg-Id:: 1
""

The scenario is such that when the client looses the connection with the
Outbound Server, it reconnects and re-registers to Kamailio in order to
replace registration and be able to receive in-dialog messages.


Any comment is wellcome.

Regards,
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