Hello,

generally speaking, calling rtpengine_manage() should be enough in most cases. Compare e.g. to the kamailio default configuration and the docs of the module:

https://kamailio.org/docs/modules/5.8.x/modules/rtpengine.html#rtpengine.f.rtpengine_manage

Cheers,

Henning

From: Ihor Olkhovskyi via sr-users <sr-users@lists.kamailio.org>
Sent: Tuesday, October 22, 2024 9:58 AM
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>
Cc: Ihor Olkhovskyi <igorolhovskiy@gmail.com>
Subject: [SR-Users] Re: Kamailio not deleteing rtp sessions

Tihomir,

Actually, yes, You need to call rtpengine_delete()

Like this

request_route {

....

if (is_method("CANCEL")) {
if (t_check_trans()) {
xlog("L_INFO", "[REQUEST_ROUTE] Relaying in-transaction CANCEL\n");

# Free previously reserved resourced

rtpengine_delete();

...

}

exit;
}

}

route[WITHINDLG] {
if (has_totag()) {
if (loose_route()) {
...
if (is_method("BYE")) {

xlog("L_INFO", "[WITHINDLG] In-dialog BYE. Invoking rtpengine_delete\n");

rtpengine_delete();
}

...

}

failure_route[MANAGE_FAILURE] {

if ($rs > 299) {
xlog("L_INFO", "[MANAGE_FAILURE] Transaction failed with $rs > 299, invoking deleting of call on rtpengine\n");

rtpengine_delete();
}

}

This is where I do this usually, but you might need to adapt it to your cases.

Le mar. 22 oct. 2024 à 08:27, Tihomir Culjaga via sr-users <sr-users@lists.kamailio.org> a écrit :

Hello,

I'm using Kamailio + RTPEngine. Everything works well except one thing. I noticed rtp sessions are not being deleted after call termination. Instead, they remain lingering on RTPEngine waiting for a timeout.

kamailio --version

version: kamailio 5.5.2 (x86_64/linux) 55e232
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: 55e232
compiled on 14:13:04 Aug 25 2021 with gcc 8.4.1

rtpengine --version
Version: 9.5.1.1-1.el8

rtpengine-ctl list totals tells me every session went to timeout :)

--- snip ---

Total statistics (does not include current running sessions):

Uptime of rtpengine :914 seconds
Total managed sessions :51
Total rejected sessions :0
Total timed-out sessions via TIMEOUT :51
Total timed-out sessions via SILENT_TIMEOUT :0
Total timed-out sessions via FINAL_TIMEOUT :0
Total timed-out sessions via OFFER_TIMEOUT :0
Total regular terminated sessions :0
Total forced terminated sessions :0

--- snip ---

I'm using rtpengine_manage in two routes "route[RELAY]" and onreply_route[MANAGE_REPLY] . Do I need to add a specific rtpengine_delete somewhere ?

route[RELAY] {

...

$xavp(r=>$T_branch_idx) = "replace-origin replace-session-connection";
if (!nat_uac_test("8")) {
$xavp(r=>$T_branch_idx) = $xavp(r=>$T_branch_idx) + " trust-address";
}
if (!has_totag()) {
xlog("L_INFO", "NEXIOS: proto = [$proto], ru = [$ru]");
if ($proto =~ "ws" && !($ru =~ "transport=ws")) {
xlog("L_INFO", "####################### FROM WS to any ########################\n");
$xavp(r=>$T_branch_idx) = $xavp(r=>$T_branch_idx) + " rtcp-mux-demux DTLS=off SDES-off ICE=remove RTP/AVP direction=external direction=internal";

} else if (!($proto =~ "ws") && $ru =~ "transport=ws") {
xlog("L_INFO", "####################### FROM any to WS ########################\n");
setbflag(FLB_TOWEBRTC);
$xavp(r=>$T_branch_idx) = $xavp(r=>$T_branch_idx) + " rtcp-mux-offer generate-mid DTLS=active SDES-off ICE=force RTP/SAVPF direction=internal direction=external";

} else if (($proto =~ "udp") && $ru =~ "transport=udp" && $fs =~ "MY_IP2_ADDR") {
xlog("L_INFO", "####################### FROM ?? to ?? $ru ########################\n");

}
}
# we engage RTPEngine
if (has_body("application/sdp")) {
xlog("L_INFO", "NEXIOS: # $xavp(r=>$T_branch_idx) #\n");
rtpengine_manage($xavp(r=>$T_branch_idx));
}

if (!t_relay()) {
sl_reply_error();
}
exit;
}

onreply_route[MANAGE_REPLY] {

...

$xavp(r=>$T_branch_idx) = "replace-origin replace-session-connection";
if (!nat_uac_test("8")) {
$xavp(r=>$T_branch_idx) = $xavp(r=>$T_branch_idx) + " trust-address";
}
if (has_totag()) {
xlog("L_INFO", "onreply_route proto = [$proto], ru = [$ru]");
if ($proto =~ "ws" && !($ru =~ "transport=ws")) {
xlog("L_INFO", "onreply_route ####################### FROM WS to any ########################\n");
$xavp(r=>$T_branch_idx) = $xavp(r=>$T_branch_idx) + " rtcp-mux-demux DTLS=off SDES-off ICE=remove RTP/AVP direction=external direction=internal";

} else if (!($proto =~ "ws") && $ru =~ "transport=ws") {
xlog("L_INFO", "onreply_route ####################### FROM any to WS ########################\n");

setbflag(FLB_TOWEBRTC);
$xavp(r=>$T_branch_idx) = $xavp(r=>$T_branch_idx) + " rtcp-mux-offer generate-mid DTLS=active SDES-off ICE=force RTP/SAVPF direction=internal direction=external";

} else if (($proto =~ "udp") && $ru =~ "transport=udp" && $fs =~ "MY_IP2_ADDR") {
xlog("L_INFO", "onreply_route ####################### FROM ?? to ?? $ru ########################\n");

}

}
if (has_body("application/sdp")) {
xlog("L_INFO", "onreply_route # $xavp(r=>$T_branch_idx) #\n");
rtpengine_manage($xavp(r=>$T_branch_idx));
}
}

Any ideas are appreciated.

Regards,

Tihomir.

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Best regards,

Ihor (Igor)