[Spce-user] SBC attended transfer problem.
Raul Alonso
raul.alonso at tpartner.net
Wed Oct 2 12:30:59 EDT 2013
hello,
I have a problem with attended transfers SBC environment(Version 2.8).
Behind the SBC I have a PBX (Asterisk)
when user A calls user B and it wants to transfer call to C with unattended
transfer, it works correctly, but if I make a call from user A to user B and
B calls C to transfer the call when I press the transfer button the call
between B and C drop, the A-B call is put on hold on B and C is left with a
call in limbo.
I created a file kamailio.cfg.customtt.cfg2 to add the REFER
if (is_method ("INVITE | ACK | CANCEL | BYE | OPTIONS | PRACK | UPDATE |
REFER
I've also created ngcp.sbcprofile.conf.customtt.tt2 to allow headers
refer-to and refered-by
attach traces from SBC
U 2013/10/02 18:11:46.742496 88.12.60.131:5062 -> 147.28.17.22:9060
REFER sip:127.0.0.1:5080 SIP/2.0'
Via: SIP/2.0/UDP 192.168.38.123:5062;branch=z9hG4bK407300470'
Route:
<sip:147.28.17.22:9060;r2=on;lr=on;ftag=2BF5FA49-524C458B000D3E89-87642700;n
gcplb=yes;socket=sip:147.28.17.22:9060>'
Route:
<sip:127.0.0.1:9060;r2=on;lr=on;ftag=2BF5FA49-524C458B000D3E89-87642700;ngcp
lb=yes;socket=sip:147.28.17.22:9060>'
From: <sip:99103101 at sbc.paco.net>;tag=733765117'
To: <sip:912040041 at sbc.paco.net>;tag=2BF5FA49-524C458B000D3E89-87642700'
Call-ID: 6c2fec696424680d4dc1d2d6305dcc83 at 147.28.17.23:5060_b2b-1'
CSeq: 12 REFER'
Contact: <sip:99103101 at 192.168.38.123:5062>'
Max-Forwards: 70'
User-Agent: Atlinks Temporis IP800 15.60.0.69'
Refer-To:
<sip:102 at sbc.paco.net:9060?Replaces=840578440%40192.168.38.123%3Bto-tag%3D02
DA5EB4-524C45BA00033527-86B37700%3Bfrom-tag%3D181137769>'
Referred-By: <sip:99103101 at sbc.paco.net>'
Event: refer'
Content-Length: 0'
'
#
U 2013/10/02 18:11:46.742756 127.0.0.1:9060 -> 127.0.0.1:5080
REFER sip:127.0.0.1:5080 SIP/2.0'
Record-Route:
<sip:127.0.0.1:9060;r2=on;lr=on;ftag=733765117;nat=yes;ngcplb=yes;socket=udp
:147.28.17.22:9060>'
Record-Route:
<sip:147.28.17.22:9060;r2=on;lr=on;ftag=733765117;nat=yes;ngcplb=yes;socket=
udp:147.28.17.22:9060>'
Via: SIP/2.0/UDP
127.0.0.1:9060;branch=z9hG4bK36.93266e8d2eb322af8e4203c73e25c9cf.0'
Via: SIP/2.0/UDP
192.168.38.123:5062;rport=5062;received=88.12.60.131;branch=z9hG4bK407300470
'
From: <sip:99103101 at sbc.paco.net>;tag=733765117'
To: <sip:912040041 at sbc.paco.net>;tag=2BF5FA49-524C458B000D3E89-87642700'
Call-ID: 6c2fec696424680d4dc1d2d6305dcc83 at 147.28.17.23:5060_b2b-1'
CSeq: 12 REFER'
Contact: <sip:99103101 at 192.168.38.123:5062;alias=88.12.60.131~5062~1>'
Max-Forwards: 69'
User-Agent: Atlinks Temporis IP800 15.60.0.69'
Refer-To:
<sip:102 at sbc.paco.net:9060?Replaces=840578440%40192.168.38.123%3Bto-tag%3D02
DA5EB4-524C45BA00033527-86B37700%3Bfrom-tag%3D181137769>'
Referred-By: <sip:99103101 at sbc.paco.net>'
Event: refer'
Content-Length: 0'
P-NGCP-Src-Ip: 88.12.60.131'
P-NGCP-Src-Port: 5062'
P-NGCP-Src-Proto: udp'
P-NGCP-Src-Af: 4'
P-Sock-Info: udp:147.28.17.22:9060'
P-NGCP-Src-Nat: 1'
'
#
U 2013/10/02 18:11:46.743244 127.0.0.1:5062 -> 127.0.0.1:9060
REFER sip:912040041 at 147.28.17.23:5060 SIP/2.0'
Max-Forwards: 10'
Record-Route:
<sip:127.0.0.1:5062;lr=on;ftag=220042F0-524C458B000D3E04-86834700;rtpprx=yes
>'
Via: SIP/2.0/UDP
127.0.0.1:5062;branch=z9hG4bK6b5a.5b6cb11a6fe5bcc71d467ae8b0764194.0'
Via: SIP/2.0/UDP 127.0.0.1:5080;branch=z9hG4bKhoBt1ajm;rport=5080'
From:
<sip:99103101 at 147.28.17.22:9060;uuid=787b8bb8-c559-4a3b-a165-bc3d4fffdc26>;t
ag=220042F0-524C458B000D3E04-86834700'
To: <sip:912040041 at 147.28.17.23>;tag=as50d378a8'
CSeq: 11 REFER'
Call-ID: 6c2fec696424680d4dc1d2d6305dcc83 at 147.28.17.23:5060'
Contact: <sip:99103101 at 127.0.0.1:5080>'
Route:
<sip:127.0.0.1:9060;r2=on;lr=on;ftag=as50d378a8;nat=yes;ngcplb=yes;socket=ud
p:147.28.17.22:9060>,
<sip:147.28.17.22:9060;r2=on;lr=on;ftag=as50d378a8;nat=yes;ngcplb=yes;socket
=udp:147.28.17.22:9060>'
Refer-To:
<sip:102 at sbc.paco.net:9060?Replaces=840578440%40192.168.38.123%3Bto-tag%3D02
DA5EB4-524C45BA00033527-86B37700%3Bfrom-tag%3D181137769>'
Referred-By: <sip:99103101 at sbc.paco.net>'
Content-Length: 0'
'
#
U 2013/10/02 18:11:46.743435 147.28.17.22:9060 -> 147.28.17.23:5060
REFER sip:912040041 at 147.28.17.23:5060 SIP/2.0'
Record-Route:
<sip:147.28.17.22:9060;r2=on;lr=on;ftag=220042F0-524C458B000D3E04-86834700;n
gcplb=yes;socket=udp:147.28.17.22:9060>'
Record-Route:
<sip:127.0.0.1:9060;r2=on;lr=on;ftag=220042F0-524C458B000D3E04-86834700;ngcp
lb=yes;socket=udp:147.28.17.22:9060>'
Max-Forwards: 9'
Record-Route:
<sip:127.0.0.1:5062;lr=on;ftag=220042F0-524C458B000D3E04-86834700;rtpprx=yes
>'
Via: SIP/2.0/UDP
147.28.17.22:9060;branch=z9hG4bK6b5a.226edd2f53a3e56467e58179d81e831a.0'
Via: SIP/2.0/UDP
127.0.0.1:5062;rport=5062;branch=z9hG4bK6b5a.5b6cb11a6fe5bcc71d467ae8b076419
4.0'
Via: SIP/2.0/UDP 127.0.0.1:5080;branch=z9hG4bKhoBt1ajm;rport=5080'
From:
<sip:99103101 at 147.28.17.22:9060;uuid=787b8bb8-c559-4a3b-a165-bc3d4fffdc26>;t
ag=220042F0-524C458B000D3E04-86834700'
To: <sip:912040041 at 147.28.17.23>;tag=as50d378a8'
CSeq: 11 REFER'
Call-ID: 6c2fec696424680d4dc1d2d6305dcc83 at 147.28.17.23:5060'
Refer-To:
<sip:102 at sbc.paco.net:9060?Replaces=840578440%40192.168.38.123%3Bto-tag%3D02
DA5EB4-524C45BA00033527-86B37700%3Bfrom-tag%3D181137769>'
Referred-By: <sip:99103101 at sbc.paco.net>'
Content-Length: 0'
Contact: <sip:ngcp-lb at 147.28.17.22:9060;ngcpct=c2lwOjEyNy4wLjAuMTo1MDgw>'
'
#
U 2013/10/02 18:11:46.744048 147.28.17.23:5060 -> 147.28.17.22:9060
SIP/2.0 202 Accepted'
Via: SIP/2.0/UDP
147.28.17.22:9060;branch=z9hG4bK6b5a.226edd2f53a3e56467e58179d81e831a.0;rece
ived=147.28.17.22;rport=9060'
Via: SIP/2.0/UDP
127.0.0.1:5062;rport=5062;branch=z9hG4bK6b5a.5b6cb11a6fe5bcc71d467ae8b076419
4.0'
Via: SIP/2.0/UDP 127.0.0.1:5080;branch=z9hG4bKhoBt1ajm;rport=5080'
Record-Route:
<sip:147.28.17.22:9060;r2=on;lr=on;ftag=220042F0-524C458B000D3E04-86834700;n
gcplb=yes;socket=udp:147.28.17.22:9060>'
Record-Route:
<sip:127.0.0.1:9060;r2=on;lr=on;ftag=220042F0-524C458B000D3E04-86834700;ngcp
lb=yes;socket=udp:147.28.17.22:9060>'
Record-Route:
<sip:127.0.0.1:5062;lr=on;ftag=220042F0-524C458B000D3E04-86834700;rtpprx=yes
>'
From:
<sip:99103101 at 147.28.17.22:9060;uuid=787b8bb8-c559-4a3b-a165-bc3d4fffdc26>;t
ag=220042F0-524C458B000D3E04-86834700'
To: <sip:912040041 at 147.28.17.23>;tag=as50d378a8'
Call-ID: 6c2fec696424680d4dc1d2d6305dcc83 at 147.28.17.23:5060'
CSeq: 11 REFER'
Server: Asterisk PBX 1.8.22.0'
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
PUBLISH'
Supported: replaces, timer'
Contact: <sip:912040041 at 147.28.17.23:5060>'
Content-Length: 0'
'
##
U 2013/10/02 18:11:46.744188 127.0.0.1:9060 -> 127.0.0.1:5062
SIP/2.0 202 Accepted'
Via: SIP/2.0/UDP
127.0.0.1:5062;rport=5062;branch=z9hG4bK6b5a.5b6cb11a6fe5bcc71d467ae8b076419
4.0'
Via: SIP/2.0/UDP 127.0.0.1:5080;branch=z9hG4bKhoBt1ajm;rport=5080'
Record-Route:
<sip:147.28.17.22:9060;r2=on;lr=on;ftag=220042F0-524C458B000D3E04-86834700;n
gcplb=yes;socket=udp:147.28.17.22:9060>'
Record-Route:
<sip:127.0.0.1:9060;r2=on;lr=on;ftag=220042F0-524C458B000D3E04-86834700;ngcp
lb=yes;socket=udp:147.28.17.22:9060>'
Record-Route:
<sip:127.0.0.1:5062;lr=on;ftag=220042F0-524C458B000D3E04-86834700;rtpprx=yes
>'
From:
<sip:99103101 at 147.28.17.22:9060;uuid=787b8bb8-c559-4a3b-a165-bc3d4fffdc26>;t
ag=220042F0-524C458B000D3E04-86834700'
To: <sip:912040041 at 147.28.17.23>;tag=as50d378a8'
Call-ID: 6c2fec696424680d4dc1d2d6305dcc83 at 147.28.17.23:5060'
CSeq: 11 REFER'
Server: Asterisk PBX 1.8.22.0'
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
PUBLISH'
Supported: replaces, timer'
Contact: <sip:912040041 at 147.28.17.23:5060>'
Content-Length: 0'
P-NGCP-Src-Ip: 147.28.17.23'
P-NGCP-Src-Port: 5060'
P-NGCP-Src-Proto: udp'
P-NGCP-Src-Af: 4'
'
##
U 2013/10/02 18:11:46.744428 127.0.0.1:5080 -> 127.0.0.1:9060
SIP/2.0 202 Accepted'
Record-Route:
<sip:127.0.0.1:9060;r2=on;lr=on;ftag=733765117;nat=yes;ngcplb=yes;socket=udp
:147.28.17.22:9060>'
Record-Route:
<sip:147.28.17.22:9060;r2=on;lr=on;ftag=733765117;nat=yes;ngcplb=yes;socket=
udp:147.28.17.22:9060>'
Via: SIP/2.0/UDP
127.0.0.1:9060;branch=z9hG4bK36.93266e8d2eb322af8e4203c73e25c9cf.0;received=
127.0.0.1'
Via: SIP/2.0/UDP
192.168.38.123:5062;rport=5062;received=88.12.60.131;branch=z9hG4bK407300470
'
From: <sip:99103101 at sbc.paco.net>;tag=733765117'
To: <sip:912040041 at sbc.paco.net>;tag=2BF5FA49-524C458B000D3E89-87642700'
Call-ID: 6c2fec696424680d4dc1d2d6305dcc83 at 147.28.17.23:5060_b2b-1'
CSeq: 12 REFER'
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
PUBLISH'
Supported: replaces, timer'
Contact: <sip:127.0.0.1:5080>'
Content-Length: 0'
'
###
U 2013/10/02 18:11:46.744649 147.28.17.22:9060 -> 88.12.60.131:5062
SIP/2.0 202 Accepted'
Record-Route:
<sip:127.0.0.1:9060;r2=on;lr=on;ftag=733765117;nat=yes;ngcplb=yes;socket=udp
:147.28.17.22:9060>'
Record-Route:
<sip:147.28.17.22:9060;r2=on;lr=on;ftag=733765117;nat=yes;ngcplb=yes;socket=
udp:147.28.17.22:9060>'
Via: SIP/2.0/UDP
192.168.38.123:5062;rport=5062;received=88.12.60.131;branch=z9hG4bK407300470
'
From: <sip:99103101 at sbc.paco.net>;tag=733765117'
To: <sip:912040041 at sbc.paco.net>;tag=2BF5FA49-524C458B000D3E89-87642700'
Call-ID: 6c2fec696424680d4dc1d2d6305dcc83 at 147.28.17.23:5060_b2b-1'
CSeq: 12 REFER'
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
PUBLISH'
Supported: replaces, timer'
Contact: <sip:127.0.0.1:5080>'
Content-Length: 0'
'
Regards,
Raúl
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