Thanks for the update. Sorry for the delayed reply I was travelling the whole day long. Yes you cannot see any
command in the configuration as this is the default setting. Next will you please delete the original
ip nat inside ...
Thanks for the update. Can you please update your nat configuration as to explicitly exempt your static nat from dynamic pat, ie.
1) configure extended ACL as follows:
access-list 101 deny tcp host 10.10.0.25 eq 5060 host 10.161.1.24 eq 5060acces...
Thanks for the information supplied. Can you please try to disable SIP ALG with the beneath (global) configuration commands
no ip nat service sip udp port 5060no ip nat service sip tcp port 5060
and check if there is any change.