Hi Denis,
Could post the actual Contact hdr as received (network level like pcap
or trace) by OpenSIPS from both caller and callee parties ?
Regards
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
https://www.siphub.com
On 22.02.2024 07:34, Denis Lyubimov wrote:
Hi all,
My network scheme is
softphone <-nat-external network-nat-> opensips <-local network-> sip
servers <-local network-> softphone
No b2b or topology_hiding modules are used.
Opensips versions I tried: 3.4.4-1 and 3.4.3-1.
I make a call from a phone behind nat to sip server via opensips, so I
use the fix_contact function from nat_traversal/fix_nated_contact from
nathelper for each request.
On the first invite I get "caller_contact":
"sip:[email protected]:49682;transport=TCP;ob" in "opensips-cli -x mi
dlg_list".
If caller side makes re-invite, then i see this "caller_contact":
"\u0001" for nat_traversal,
and this "caller_contact": "sip:[email protected]
<mailto:sip%[email protected]>\ufffd" with nathelper in dlg_list.
In that case dlg_send_sequential mi dialog function cannot be used
cause caller contact cannot be read.
Also if i make a re-invite from the caller side then the
caller_contact field in dlg_list starts looking normal.
Am I doing something wrong with fixing the nated contact field?
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