On Jun 12, 2018, at 4:45 AM, Sergey Safarov <s.safarov@gmail.com> wrote:

root of issue
ACK send to IP resolved via DNS for value defined as "fs_path", rather than defined in contact string.

more details
https://freeswitch.org/jira/browse/FS-11190

вт, 12 июн. 2018 г. в 10:30, Sergey Safarov <s.safarov@gmail.com>:

Are anybody experiences issue when for some of calls  ACK send to other IP.

http://prntscr.com/jtxkbz
in this case FS in bypass media with two profiles (1 to internet, 2 intranet).
INVITE is send to DNS name that is resolved to

1. 10.0.9.32
   
2. 10.0.9.33
   
3. 10.0.9.34
   
4. 10.0.9.35
   

FS 1.6.19

Contact on 200 message is correct

SIP/2.0 200 OK Via: SIP/2.0/TCP 10.0.9.51:12000;rport=39049;branch=z9hG4bKBH60NQjSZj36a From: "Anonymous" <sip:+12022553656@10.0.9.51>;tag=rH5cBQarr559D To: <sip:13013688630@metropolis.ack.one>;tag=UDv7UXv3B53Da Call-ID: b0e4d7e1-e79e-1236-8cb9-02420a000933 CSeq: 123998414 INVITE Contact: <sip:13013688630@10.0.9.33:11000;transport=tcp> User-Agent: proxy.ackone.com Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
Now for future investigate FS upgrader to 1.6.20 and enabled siptrace and loglevel

Sergey Safarov