29 Sep
2023
29 Sep
'23
1:05 a.m.
I can reproduce this behavior easily with the config below, but I'm not quite sure
how/why it matters.
request_route {
xinfo("[$ru] recieved\n");
$rd = "target2";
append_branch("sip:$rU@target1", "1.0");
t_load_contacts();
t_next_contacts();
t_on_failure("MANAGE_FAILURE");
t_on_branch("MANAGE_BRANCH");
t_set_fr(5000);
t_relay();
exit;
}
branch_route[MANAGE_BRANCH] {
xinfo("Sending [$ru]\n");
}
failure_route[MANAGE_FAILURE] {
if ( t_branch_timeout() ) {
xinfo("Branch timed out.\n");
}
if ( !t_next_contacts() ) {
send_reply("503", "Server Error");
exit;
}
t_on_failure("MANAGE_FAILURE");
t_relay();
}
-----Original Message-----
From: James Lipski via sr-users <sr-users(a)lists.kamailio.org>
Sent: Thursday, September 28, 2023 3:08 PM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Cc: James Lipski <jameslipski(a)protonmail.com>
Subject: [SR-Users] Re: CANCEL first, then INVITE.
CAUTION: This email originated from outside the organization. Do not click links or open
attachments unless you recognize the sender and know the content is safe.
Hello,
As with my previous update, I'm using the skeleton configurations (with minor changes,
such as defining an external voicemail destination) just for testing purposes. With the
skeleton configurations, I'm still seeing that the INVITE packet to the voicemail
server sent first, and then the CANCEL to the second endpoint (please see SIP trace
below). In this call example the second endpoint is a PBX, and is configured to route
unanswered calls towards it's own local voicemail system. Is there a way to switch the
behaviour so that the CANCEL packet towards endpoint 2 is sent FIRST; and then the INVITE
to the voicemail system second? Thank you.
10.0.0.117 --- snom (endpoint 1)
10.0.0.177 --- kamailio
10.0.0.188 --- PBX (endpoint 2)
10.0.0.26 --- external voicemail system.
2023/09/28 15:41:39.122897 10.0.0.117:40274 -> 10.0.0.177:5060 INVITE
sip:10000010@10.0.0.177 SIP/2.0
v: SIP/2.0/UDP 10.0.0.117:40274;branch=z9hG4bK-30wsteb4v1cl;rport
f: <sip:10000006@10.0.0.177>;tag=pqxa29jt8v
t: <sip:10000010@10.0.0.177>
i: f1d61565275f-tqgd64ng8qmq
CSeq: 2 INVITE
Max-Forwards: 70
User-Agent: snomD785/10.1.159.12
m: <sip:10000006@10.0.0.117:40274;line=y3jwlgtb>;reg-id=1
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO,
UPDATE
Allow-Events: talk, hold, refer, call-info
Supported: timer, replaces, from-change
Session-Expires: 3600
Min-SE: 90
Proxy-Authorization: Digest
username="10000006",realm="10.0.0.177",nonce="ZRXYH2UV1vNTJ01Zmy97xZsd43iZmRNW",uri="sip:10000010@10.0.0.177",response="4a1d80ae375ae8d56d7b7c602e5bbcd4
",algorithm=MD5
c: application/sdp
l: 315
v=0
o=root 1457342879 1457342879 IN IP4 10.0.0.117 s=call c=IN IP4 10.0.0.117
t=0 0
m=audio 61370 RTP/AVP 9 0 8 18 101
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
2023/09/28 15:41:39.124438 10.0.0.177:5060 -> 10.0.0.117:40274
SIP/2.0 100 trying -- your call is important to us
v: SIP/2.0/UDP
10.0.0.117:40274;branch=z9hG4bK-30wsteb4v1cl;rport=40274;received=10.0.0.117
f: <sip:10000006@10.0.0.177>;tag=pqxa29jt8v
t: <sip:10000010@10.0.0.177>
i: f1d61565275f-tqgd64ng8qmq
CSeq: 2 INVITE
Content-Length: 0
2023/09/28 15:41:39.125338 10.0.0.177:5060 -> 10.0.0.188:5678 INVITE
sip:10000010@10.0.0.188:5678;transport=udp;line=aab32389;alias=10.0.0.188~5678~1 SIP/2.0
Record-Route: <sip:10.0.0.177;lr;nat=yes>
Via: SIP/2.0/UDP 10.0.0.177;branch=z9hG4bK87d3.36c49e4bbd41f8c5625007842e35ce3a.0
v: SIP/2.0/UDP
10.0.0.117:40274;received=10.0.0.117;branch=z9hG4bK-30wsteb4v1cl;rport=40274
f: <sip:10000006@10.0.0.177>;tag=pqxa29jt8v
t: <sip:10000010@10.0.0.177>
i: f1d61565275f-tqgd64ng8qmq
CSeq: 2 INVITE
Max-Forwards: 69
User-Agent: snomD785/10.1.159.12
m: <sip:10000006@10.0.0.117:40274;line=y3jwlgtb;alias=10.0.0.117~40274~1>;reg-id=1
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO,
UPDATE
Allow-Events: talk, hold, refer, call-info
Supported: timer, replaces, from-change
Session-Expires: 3600
Min-SE: 90
c: application/sdp
l: 315
v=0
o=root 1457342879 1457342879 IN IP4 10.0.0.117 s=call c=IN IP4 10.0.0.117
t=0 0
m=audio 61370 RTP/AVP 9 0 8 18 101
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
2023/09/28 15:41:39.126941 10.0.0.188:5678 -> 10.0.0.177:5060
SIP/2.0 100 Trying
v: SIP/2.0/UDP 10.0.0.177;branch=z9hG4bK87d3.36c49e4bbd41f8c5625007842e35ce3a.0
v: SIP/2.0/UDP
10.0.0.117:40274;received=10.0.0.117;branch=z9hG4bK-30wsteb4v1cl;rport=40274
Record-Route: <sip:10.0.0.177;lr;nat=yes>
f: <sip:10000006@10.0.0.177>;tag=pqxa29jt8v
t: <sip:10000010@10.0.0.177>;tag=c3579c1a01
i: f1d61565275f-tqgd64ng8qmq
CSeq: 2 INVITE
l: 0
2023/09/28 15:41:39.171314 10.0.0.188:5678 -> 10.0.0.177:5060
SIP/2.0 183 Session Progress
v: SIP/2.0/UDP 10.0.0.177;branch=z9hG4bK87d3.36c49e4bbd41f8c5625007842e35ce3a.0
v: SIP/2.0/UDP
10.0.0.117:40274;received=10.0.0.117;branch=z9hG4bK-30wsteb4v1cl;rport=40274
Record-Route: <sip:10.0.0.177;lr;nat=yes>
f: <sip:10000006@10.0.0.177>;tag=pqxa29jt8v
t: <sip:10000010@10.0.0.177>;tag=c3579c1a01
i: f1d61565275f-tqgd64ng8qmq
CSeq: 2 INVITE
m: <sip:10000010@10.0.0.188:5678;transport=udp>
Supported: 100rel, replaces, norefersub
Allow-Events: refer
Allow: INVITE, ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE
Accept: application/sdp
c: application/sdp
l: 247
v=0
o=- 1982229263 1982229263 IN IP4 10.0.0.188
s=-
c=IN IP4 10.0.0.188
t=0 0
m=audio 59112 RTP/AVP 0 101
a=rtpmap:0 pcmu/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=rtcp-xr:rcvr-rtt=all voip-metrics
a=sendrecv
2023/09/28 15:41:39.172272 10.0.0.177:5060 -> 10.0.0.117:40274
SIP/2.0 183 Session Progress
v: SIP/2.0/UDP
10.0.0.117:40274;received=10.0.0.117;branch=z9hG4bK-30wsteb4v1cl;rport=40274
Record-Route: <sip:10.0.0.177;lr;nat=yes>
f: <sip:10000006@10.0.0.177>;tag=pqxa29jt8v
t: <sip:10000010@10.0.0.177>;tag=c3579c1a01
i: f1d61565275f-tqgd64ng8qmq
CSeq: 2 INVITE
m: <sip:10000010@10.0.0.188:5678;transport=udp;alias=10.0.0.188~5678~1>
Supported: 100rel, replaces, norefersub
Allow-Events: refer
Allow: INVITE, ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE
Accept: application/sdp
c: application/sdp
l: 247
v=0
o=- 1982229263 1982229263 IN IP4 10.0.0.188
s=-
c=IN IP4 10.0.0.188
t=0 0
m=audio 59112 RTP/AVP 0 101
a=rtpmap:0 pcmu/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=rtcp-xr:rcvr-rtt=all voip-metrics
a=sendrecv
2023/09/28 15:41:59.129391 10.0.0.177:5060 -> 10.0.0.26:7066 INVITE
sip:10000010@10.0.0.26:7066 SIP/2.0
Record-Route: <sip:10.0.0.177;lr;nat=yes>
Via: SIP/2.0/UDP 10.0.0.177;branch=z9hG4bK87d3.36c49e4bbd41f8c5625007842e35ce3a.1
v: SIP/2.0/UDP
10.0.0.117:40274;received=10.0.0.117;branch=z9hG4bK-30wsteb4v1cl;rport=40274
f: <sip:10000006@10.0.0.177>;tag=pqxa29jt8v
t: <sip:10000010@10.0.0.177>
i: f1d61565275f-tqgd64ng8qmq
CSeq: 2 INVITE
Max-Forwards: 69
User-Agent: snomD785/10.1.159.12
m: <sip:10000006@10.0.0.117:40274;line=y3jwlgtb;alias=10.0.0.117~40274~1>;reg-id=1
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO,
UPDATE
Allow-Events: talk, hold, refer, call-info
Supported: timer, replaces, from-change
Session-Expires: 3600
Min-SE: 90
c: application/sdp
l: 315
v=0
o=root 1457342879 1457342879 IN IP4 10.0.0.117 s=call c=IN IP4 10.0.0.117
t=0 0
m=audio 61370 RTP/AVP 9 0 8 18 101
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
2023/09/28 15:41:59.129633 10.0.0.177:5060 -> 10.0.0.188:5678 CANCEL
sip:10000010@10.0.0.188:5678;transport=udp;line=aab32389;alias=10.0.0.188~5678~1 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.177;branch=z9hG4bK87d3.36c49e4bbd41f8c5625007842e35ce3a.0
f: <sip:10000006@10.0.0.177>;tag=pqxa29jt8v
t: <sip:10000010@10.0.0.177>
i: f1d61565275f-tqgd64ng8qmq
CSeq: 2 CANCEL
Max-Forwards: 69
l: 0
2023/09/28 15:41:59.130509 10.0.0.188:5678 -> 10.0.0.177:5060
SIP/2.0 200 Ok
v: SIP/2.0/UDP 10.0.0.177;branch=z9hG4bK87d3.36c49e4bbd41f8c5625007842e35ce3a.0
v: SIP/2.0/UDP
10.0.0.117:40274;received=10.0.0.117;branch=z9hG4bK-30wsteb4v1cl;rport=40274
Record-Route: <sip:10.0.0.177;lr;nat=yes>
f: <sip:10000006@10.0.0.177>;tag=pqxa29jt8v
t: <sip:10000010@10.0.0.177>;tag=c3579c1a01
i: f1d61565275f-tqgd64ng8qmq
CSeq: 2 INVITE
m: <sip:10000010@10.0.0.188:5678;transport=udp>
Supported: 100rel, replaces, norefersub
Allow-Events: refer
Allow: INVITE, ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE
Accept: application/sdp
c: application/sdp
l: 247
v=0
o=- 1982229263 1982229263 IN IP4 10.0.0.188
s=-
c=IN IP4 10.0.0.188
t=0 0
m=audio 59112 RTP/AVP 0 101
a=rtpmap:0 pcmu/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=rtcp-xr:rcvr-rtt=all voip-metrics
a=sendrecv
2023/09/28 15:41:59.130543 10.0.0.188:5678 -> 10.0.0.177:5060
SIP/2.0 200 Ok
v: SIP/2.0/UDP 10.0.0.177;branch=z9hG4bK87d3.36c49e4bbd41f8c5625007842e35ce3a.0
f: <sip:10000006@10.0.0.177>;tag=pqxa29jt8v
t: <sip:10000010@10.0.0.177>;tag=c3579c1a01
i: f1d61565275f-tqgd64ng8qmq
CSeq: 2 CANCEL
m: <sip:10000010@10.0.0.188:5678;transport=udp>
l: 0
------- Original Message -------
On Wednesday, September 27th, 2023 at 9:43 AM, James Lipski
<jameslipski(a)protonmail.com> wrote:
Hello,
Thanks for the reply. I'm using the bundled/skeleton configurations just to test with
a few modifications (adding the actual voicemail server) however even with the skeleton
configurations, when the call goes unanswered, and the call forks to voicemail, the INVITE
packet is sent first, followed by the CANCEL to endpoint 2. The following is a SIP trace
of what I'm seeing:
10.0.0.117 -- Endpoint 1
10.0.0.177 -- Kamailio
10.0.0.110 -- Endpoint 2
10.0.0.26 -- Voicemail
2023/09/27 09:27:06.326167 10.0.0.117:42414 -> 10.0.0.177:5060
INVITE sip:10000008@10.0.0.177 SIP/2.0
v: SIP/2.0/UDP 10.0.0.117:42414;branch=z9hG4bK-dyp7uuyl7zjs;rport
f: sip:10000006@10.0.0.177;tag=rsxulncekf
t: sip:10000008@10.0.0.177
i: a62d14656998-uhh0lmce49oh
CSeq: 2 INVITE
Max-Forwards: 70
User-Agent: snomD785/10.1.159.12
m: sip:10000006@10.0.0.117:42414;line=aoec88fl;reg-id=1
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE,
PRACK, MESSAGE, INFO, UPDATE
Allow-Events: talk, hold, refer, call-info
Supported: timer, replaces, from-change
Session-Expires: 3600
Min-SE: 90
Proxy-Authorization: Digest
username="10000006",realm="10.0.0.177",nonce="ZRQu1mUULaq2rH8lPjaCtARP
y4Wa7KfQ",uri="sip:10000008@10.0.0.177",response="a2cf69a439f25e97b238
510377cc4900",algorithm=MD5
c: application/sdp
l: 311
v=0
o=root 44632463 44632463 IN IP4 10.0.0.117 s=call c=IN IP4 10.0.0.117
t=0 0
m=audio 65348 RTP/AVP 9 0 8 18 101
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
2023/09/27 09:27:06.329198 10.0.0.177:5060 -> 10.0.0.117:42414
SIP/2.0 100 trying -- your call is important to us
v: SIP/2.0/UDP
10.0.0.117:42414;branch=z9hG4bK-dyp7uuyl7zjs;rport=42414;received=10.0
.0.117
f: sip:10000006@10.0.0.177;tag=rsxulncekf
t: sip:10000008@10.0.0.177
i: a62d14656998-uhh0lmce49oh
CSeq: 2 INVITE
Content-Length: 0
2023/09/27 09:27:06.329914 10.0.0.177:5060 -> 10.0.0.110:5063
INVITE sip:10000008@10.0.0.110:5063;alias=10.0.0.110~5063~1 SIP/2.0
Record-Route: sip:10.0.0.177;lr;nat=yes
Via: SIP/2.0/UDP
10.0.0.177;branch=z9hG4bKa57d.d96bf39b755c51e53e995361b9567dc6.0
v: SIP/2.0/UDP
10.0.0.117:42414;received=10.0.0.117;branch=z9hG4bK-dyp7uuyl7zjs;rport
=42414
f: sip:10000006@10.0.0.177;tag=rsxulncekf
t: sip:10000008@10.0.0.177
i: a62d14656998-uhh0lmce49oh
CSeq: 2 INVITE
Max-Forwards: 69
User-Agent: snomD785/10.1.159.12
m:
sip:10000006@10.0.0.117:42414;line=aoec88fl;alias=10.0.0.117~42414~1;r
eg-id=1
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE,
PRACK, MESSAGE, INFO, UPDATE
Allow-Events: talk, hold, refer, call-info
Supported: timer, replaces, from-change
Session-Expires: 3600
Min-SE: 90
c: application/sdp
l: 311
v=0
o=root 44632463 44632463 IN IP4 10.0.0.117 s=call c=IN IP4 10.0.0.117
t=0 0
m=audio 65348 RTP/AVP 9 0 8 18 101
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
2023/09/27 09:27:06.385247 10.0.0.110:5063 -> 10.0.0.177:5060
SIP/2.0 100 Trying
i: a62d14656998-uhh0lmce49oh
CSeq: 2 INVITE
l: 0
f: sip:10000006@10.0.0.177;tag=rsxulncekf
Record-Route: sip:10.0.0.177;lr;nat=yes
t: sip:10000008@10.0.0.177;tag=SP49be74061f6fb65ae
v: SIP/2.0/UDP
10.0.0.177;branch=z9hG4bKa57d.d96bf39b755c51e53e995361b9567dc6.0;recei
ved=10.0.0.177;rport=5060
Via: SIP/2.0/UDP
10.0.0.117:42414;received=10.0.0.117;branch=z9hG4bK-dyp7uuyl7zjs;rport
=42414
Server: OBIHAI/OBi200-3.2.1.5757
2023/09/27 09:27:06.461036 10.0.0.110:5063 -> 10.0.0.177:5060
SIP/2.0 180 Ringing
i: a62d14656998-uhh0lmce49oh
CSeq: 2 INVITE
l: 0
f: sip:10000006@10.0.0.177;tag=rsxulncekf
Record-Route: sip:10.0.0.177;lr;nat=yes
t: sip:10000008@10.0.0.177;tag=SP49be74061f6fb65ae
v: SIP/2.0/UDP
10.0.0.177;branch=z9hG4bKa57d.d96bf39b755c51e53e995361b9567dc6.0;recei
ved=10.0.0.177;rport=5060
Via: SIP/2.0/UDP
10.0.0.117:42414;received=10.0.0.117;branch=z9hG4bK-dyp7uuyl7zjs;rport
=42414
Server: OBIHAI/OBi200-3.2.1.5757
m: sip:10000008@10.0.0.110:5063
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE,
PRACK, MESSAGE, INFO, UPDATE
2023/09/27 09:27:06.462644 10.0.0.177:5060 -> 10.0.0.117:42414
SIP/2.0 180 Ringing
i: a62d14656998-uhh0lmce49oh
CSeq: 2 INVITE
l: 0
f: sip:10000006@10.0.0.177;tag=rsxulncekf
Record-Route: sip:10.0.0.177;lr;nat=yes
t: sip:10000008@10.0.0.177;tag=SP49be74061f6fb65ae
Via: SIP/2.0/UDP
10.0.0.117:42414;received=10.0.0.117;branch=z9hG4bK-dyp7uuyl7zjs;rport
=42414
Server: OBIHAI/OBi200-3.2.1.5757
m: sip:10000008@10.0.0.110:5063;alias=10.0.0.110~5063~1
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE,
PRACK, MESSAGE, INFO, UPDATE
2023/09/27 09:27:51.447756 10.0.0.177:5060 -> 10.0.0.26:7066
INVITE sip:10000008@10.0.0.26:7066 SIP/2.0
Record-Route: sip:10.0.0.177;lr;nat=yes
Via: SIP/2.0/UDP
10.0.0.177;branch=z9hG4bKa57d.d96bf39b755c51e53e995361b9567dc6.1
v: SIP/2.0/UDP
10.0.0.117:42414;received=10.0.0.117;branch=z9hG4bK-dyp7uuyl7zjs;rport
=42414
f: sip:10000006@10.0.0.177;tag=rsxulncekf
t: sip:10000008@10.0.0.177
i: a62d14656998-uhh0lmce49oh
CSeq: 2 INVITE
Max-Forwards: 69
User-Agent: snomD785/10.1.159.12
m:
sip:10000006@10.0.0.117:42414;line=aoec88fl;alias=10.0.0.117~42414~1;r
eg-id=1
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE,
PRACK, MESSAGE, INFO, UPDATE
Allow-Events: talk, hold, refer, call-info
Supported: timer, replaces, from-change
Session-Expires: 3600
Min-SE: 90
c: application/sdp
l: 311
v=0
o=root 44632463 44632463 IN IP4 10.0.0.117 s=call c=IN IP4 10.0.0.117
t=0 0
m=audio 65348 RTP/AVP 9 0 8 18 101
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
2023/09/27 09:27:51.466497 10.0.0.177:5060 -> 10.0.0.110:5063
CANCEL sip:10000008@10.0.0.110:5063;alias=10.0.0.110~5063~1 SIP/2.0
Via: SIP/2.0/UDP
10.0.0.177;branch=z9hG4bKa57d.d96bf39b755c51e53e995361b9567dc6.0
f: sip:10000006@10.0.0.177;tag=rsxulncekf
t: sip:10000008@10.0.0.177
i: a62d14656998-uhh0lmce49oh
CSeq: 2 CANCEL
Max-Forwards: 69
l: 0
2023/09/27 09:27:51.466503 10.0.0.177:5060 -> 10.0.0.26:7066
ACK sip:10000008@10.0.0.26:7066 SIP/2.0
Via: SIP/2.0/UDP
10.0.0.177;branch=z9hG4bKa57d.d96bf39b755c51e53e995361b9567dc6.1
f: sip:10000006@10.0.0.177;tag=rsxulncekf
t: sip:10000008@10.0.0.177;tag=2faa70b9-a47d-42d0-87fc-779e397ebc7e
i: a62d14656998-uhh0lmce49oh
CSeq: 2 ACK
Max-Forwards: 69
l: 0
------- Original Message -------
On Wednesday, September 27th, 2023 at 2:04 AM, Daniel-Constantin Mierla via sr-users
sr-users(a)lists.kamailio.org wrote:
> Hello,
>
> default kamailio.cfg has a skeleton for doing serial forking to a
> voicemail server. Follow the token WITH_VOICEMAIL to discover the
> related snippets -- this can be a starting point to implement it in
> your config.
>
> Cheers,
> Daniel
>
> On 27.09.23 04:12, Alex Balashov via sr-users wrote:
>
> > Hi James,
> >
> > The difference you are describing is between serial and parallel forking. You
clearly want the former. There are a variety of ways to achieve that, and the answer will
depend on the code path taken to route to your voicemail server.
> >
> > -- Alex
> >
> > > On Sep 26, 2023, at 5:50 PM, James Lipski via sr-users
sr-users(a)lists.kamailio.org wrote:
> > >
> > > Hello,
> > >
> > > Is there a way to change the transaction order when a failure fork occurs
-- to explain, endpoint 1 calls endpoint 2. Call towards endpoint 2 goes unanswered, and
so the call forks to voicemail, I see that an INVITE is sent towards my voicemail server
first, followed by a CANCEL towards the endpoint; can I send the CANCEL first to the
endpoint and then INVITE towards my voicemail server. I'm essentially using the
bundled/sample configurations for testing.
> > >
> > > Thank
> > > you.__________________________________________________________
> > > Kamailio - Users Mailing List - Non Commercial Discussions To
> > > unsubscribe send an email to sr-users-leave(a)lists.kamailio.org
> > > Important: keep the mailing list in the recipients, do not reply only to
the sender!
> > > Edit mailing list options or unsubscribe:
> > > --
> > > Alex Balashov
> > > Principal Consultant
> > > Evariste Systems LLC
> > > Web:
> > > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%
> > > 2Fevaristesys.com%2F&data=05%7C01%7Cbkaufman%40bcmone.com%7C73b1
> > > 320140764ada4bbf08dbc0600f7a%7Cafc1818e7b6848568913201b9396c4fc%
> > > 7C1%7C0%7C638315291068700436%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4
> > > wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7
> > > C%7C%7C&sdata=opsgjhZGjuZd%2Bam%2Fijw3tgXcofOZOee4u3IkAlyEc90%3D
> > > &reserved=0
> > > Tel: +1-706-510-6800
> >
> > __________________________________________________________
> > Kamailio - Users Mailing List - Non Commercial Discussions To
> > unsubscribe send an email to sr-users-leave(a)lists.kamailio.org
> > Important: keep the mailing list in the recipients, do not reply only to the
sender!
> > Edit mailing list options or unsubscribe:
>
> --
> Daniel-Constantin Mierla (@ asipto.com) twitter.com/miconda --
> linkedin.com/in/miconda Kamailio Consultancy - Training Services --
> asipto.com Kamailio World Conference - kamailioworld.com
>
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions To
> unsubscribe send an email to sr-users-leave(a)lists.kamailio.org
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sender!
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