SBC allowing INVITES from a user in another IP address different from which it registered

@trkmaxcom

 

Guys,

 

I have a case reported by a customer where SBC is allowing INVITES from a user in another IP address different from which it registered before.

 

 

 

Registered was done for 5511649972 from IP address: 10.201.0.10

 

User <sip:5511649972@trkmaxcom.com>
Contact ID=169493594 exp=2917
UA-Contact: <sip:5511649972@10.201.0.10> UDP keep-acl
realm=acc-cust1 local=172.20.8.1:5060 UA=10.201.0.10:5060
SD-Contact: <sip:5511649972@69.45.129.78:5060> realm=private_alcatel
Call-ID: 067bb6f05c6f0d7f7633209d46daa7a2@127.0.0.1'

CDR  showing a call to 5547701282 from 5511649972 at IP address 201.161.62.143

cdr201212182006:2,"69.45.129.78",5060,"MmZjMGE5Y2FmMmRhNDBlM2JlMGY3M2FmZTFjNDY4NjI.","MmZjMGE5Y2FmMmRhNDBlM2JlMGY3M2FmZTFjNDY4NjI.","MmZjMGE5Y2FmMmRhNDBlM2JlMGY3M2FmZTFjNDY4NjI.","SIP",,""5511649972"<sip:5511649972@trkmaxcom.com>;tag=7c35ca40",""5547701282"<sip:5547701282@trkmaxcom.com>",1,4,"20:06:43.995 CTS DEC 18 2012","20:06:47.962 CTS DEC 18 2012","20:06:51.918 CTS DEC 18 2012",1,"private_alcatel","troncalsip","localhost:773436318","G729","