it was missing

rtpengine_manage();

in

route[WITHINDIALOG]

Dne 01/10/2020 v 10:21 Jan Rozhon napsal(a):

Hi,

this might be a long shot but perhaps sdpops module could help you out with the problem. Have you tried it?

Regards, Jan

On 29. 09. 20 13:05, marek wrote:

...

hi,

i have kamailio+rtpengine acting as a SBC (private/public net interfaces)

kamailio 5.4.x/rtpengine 9.x/centos 7

using TOPOH module

modparam("topoh", "mask_ip", "public_IP")

i'm rewriting IPs in INVITE like this

$var(ruri) = "sip:" + $(ru{re.subst,/private_IP/public_IP/g});                 $ru = $(ru{re.subst,/private_IP/public_IP/g});                 $tu = $(tu{re.subst,/private_IP/public_IP/g});                 $fu = $(fu{re.subst,/remote_private_IP/public_IP/g}); the same for route[WITHINDIALOG] and INVITE

i have problem with session timers using re-INVITE method

in the first INVITE SDP is correct

c=IN IP4 public_IP

but

in the reinvite is

c=IN IP4 private_IP

and remote SBC drop with 422 because SDP is changed and SDP version is not.

any tips / best practice?

thanks

Marek

---

Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

---

Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users