[SR-Users] Why does Kamailio return many Contacts in Contact header in REGISTER response ?

[Khoa Pham]

When I make REGISTER request to server Kamailio. Kamailio sometimes return
me REGISTER 200 OK response with many Contacts in Contact header field

Contact:
<sip:user1 at 1.1.1.1:58492
;transport=TLS;ob>;expires=29;received="sip:1.1.1.1:58492;transport=TLS",
<sip:user1 at 3.3.3.3:58520;transport=TLS;ob>;expires=244,
<sip:user1 at 1.1.1.1:58529
;transport=TLS;ob>;expires=284;received="sip:1.1.1.1:58529;transport=TLS",
<sip:user1 at 3.3.3.3:58548;transport=TLS;ob>;expires=329,
<sip:user1 at 3.3.3.3:58562;transport=TLS;ob>;expires=393,
<sip:user1 at 1.1.1.1:58571
;transport=TLS;ob>;expires=483;received="sip:1.1.1.1:58571;transport=TLS",
<sip:user1 at 2.2.2.2:58588;transport=TLS;ob>;expires=538,
<sip:user1 at 1.1.1.1:58600
;transport=TLS;ob>;expires=587;received="sip:1.1.1.1:58600;transport=TLS",
<sip:user1 at 2.2.2.2:58611;transport=TLS;ob>;expires=630,
<sip:user1 at 1.1.1.1:58624
;transport=TLS;ob>;expires=670;received="sip:1.1.1.1:58624;transport=TLS",
<sip:user1 at 2.2.2.2:58632;transport=TLS;ob>;expires=706,
<sip:user1 at 1.1.1.1:58650
;transport=TLS;ob>;expires=826;received="sip:1.1.1.1:58650;transport=TLS",
<sip:user1 at 2.2.2.2:58661
;transport=TLS;ob>;expires=900;+sip.instance="<urn:uuid:00000000-0000-0000-0000-00007dtrf0a4c>";reg-id=1

Why is that ?

-- 
Khoa Pham
HCMC University of Science
www.fantageek.com
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