[Spce-user] No rewrite on T.38 INVITE

Sat Aug 15 13:16:22 EDT 2015

Hi Tristan,

I want to say, its the other way around compared to your suspicion. Its
sending the Re-INVITE to you without a +

There are others on this list who are probably more skilled at looking at
the issue.

The proxy log seems to show no knowledge of the re-invite, make the LB log
has some more info for you?

[image: Inline images 1]

On 15 August 2015 at 17:41, Tristan Delsol <tdelsol at qfast.nl> wrote:

> Indeed. I got it off to quick.
> I agree about using t.38 but I need to support the fallback for the
> interconnect,
> that's why I'm testing this.
>
> Attached the full pcap.
>
> Tristan
>
> On 2015-08-15 16:55, Matthew Ogden wrote:
>
>> Hi
>>
>> Possibly some data is missing? I dont see the reinvite, or any BYEs to
>> end the call.
>>
>> Also, if your upstream supports T38, its a no-brainer to use it, it
>> will be far more reliable. (But lets first focus on getting the whole
>> call).
>>
>> See here:
>>
>> On 15 August 2015 at 15:49, Tristan Delsol <tdelsol at qfast.nl> wrote:
>>
>> Matthew,
>>>
>>> Find attached, pcap of the setup.
>>> I'm using an audiocodes MP112 and have T.38 disabled on the MP112
>>> as I want it to fallback to passthrough.
>>>
>>> Thanks
>>>
>>> On 2015-08-15 14:57, Matthew Ogden wrote:
>>>
>>> might be easier with a pcap of the call to see whats going on
>>>
>>> On 15 August 2015 at 14:09, Tristan Delsol <tdelsol at qfast.nl>
>>> wrote:
>>>
>>> Well I removed the + sign for the outgoing fax but that doesn't
>>> seem
>>> to be the issue.
>>> For some reason the RE-INVITE for T.38 does not get through.
>>>
>>> Here the ngcp-logs for the setup.
>>>
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Call to SIP Peering - R=sip:31306665648 at 87.239.101.193;user=phone
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Load gws matching calling part 'sip:31756418049 at 87.239.101.193' and
>>> called user '31306665648' and called part
>>> 'sip:31306665648 at 87.239.101.193;user=phone' -
>>> R=sip:31306665648 at 87.239.101.193;user=phone
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Setting acc source-leg for uuid
>>> 'c453f9be-74d4-47e6-931d-a18f29fef700':
>>>
>>>
>>>
>> 'c453f9be-74d4-47e6-931d-a18f29fef700|31756418049|87.239.101.193|31756418049|||7|||0|call|192.168.111.25|1439640013.867047|||||||||||'
>>
>>>
>>> - R=sip:31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Setting acc destination-leg for uuid '0':
>>> '0|||0|0306665648|0|31306665648|ims.imscore.net [1]
>>>
>>> [2]|31306665648|87.239.101.193|2|||||||||||' -
>>>
>>> R=sip:31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: ERROR: dispatcher
>>> [dispatch.c:1247]: ds_get_index(): destination set [50] not found
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: ERROR: dispatcher
>>> [dispatch.c:1625]: ds_select_dst(): destination set [50] not found
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: WARNING:
>>> <script>: Failed to load dispatcher entries for lb using did '50',
>>> use first lb found in network.yml -
>>> R=sip:31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Setting caller_cli_userprov/caller_domain_userprov
>>> '31756418049 at 192.168.111.25' for upn -
>>> R=sip:31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Setting From to '<sip:31756418049 at 192.168.111.25>' -
>>> R=sip:31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Setting caller_cli_netprov/caller_domain_netprov
>>> '31756418049 at 87.239.101.193' for npn -
>>> R=sip:31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Setting PAI to '<sip:31756418049 at 87.239.101.193>' -
>>> R=sip:31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Rewriting called party '31306665648' to '+31306665648 [2] [3]' -
>>> R=sip:31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Setting P-Called-Party-ID '<sip:+31306665648 at ims.imscore.net>' -
>>> R=sip:+31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Setting 'sip:139.156.126.49:5060 [3] [4]' taken from D-URI as next
>>> hop
>>> after lb for PSTN call - R=sip:+31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Appending P-D-URI
>>>
>>>
>>> 'sip:127.0.0.1:5060;received='sip:139.156.126.49:5060;lr;transport=udp''
>>
>>> - R=sip:+31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Forcing request via B2BUA 'sip:127.0.0.1:5080 [4] [5]' -
>>> R=sip:+31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6519]: NOTICE: <script>:
>>> Request leaving server, D-URI='sip:127.0.0.1:5080 [4] [5]' -
>>> R=sip:+31306665648 at ims.imscore.net
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:13 [6521]: NOTICE: <script>:
>>> NAT-Reply - S=100 - Connecting M=INVITE IP=192.168.111.25:5060 [5]
>>> [6]
>>> (127.0.0.1:5080 [4] [5]) ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:14 [6518]: NOTICE: <script>:
>>> NAT-Reply - S=183 - Session Progress M=INVITE
>>> IP=192.168.111.25:5060 [5]
>>> [6] (127.0.0.1:5080 [4] [5])
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:21 [6523]: NOTICE: <script>:
>>> NAT-Reply - S=200 - OK M=INVITE IP=192.168.111.25:5060 [5] [6]
>>> (127.0.0.1:5080 [4] [5]) ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:21 [6524]: NOTICE: <script>:
>>> New request on proxy - M=ACK R=sip:127.0.0.1:5080;prxroute=1
>>> F=sip:31756418049 at 192.168.111.25
>>> T=sip:0306665648 at 87.239.101.193;user=phone IP=192.168.111.25:5060
>>> [5]
>>> [6] (127.0.0.1:5060 [6] [7])
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6522]: NOTICE: <script>:
>>> New request on proxy - M=INVITE
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> F=sip:+31306665648 at ims.imscore.net T=sip:31756418049 at 192.168.111.25
>>> IP=139.156.126.49:5060 [3] [4] (127.0.0.1:5060 [6] [7])
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6522]: NOTICE: <script>:
>>> Call from PSTN -
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6522]: NOTICE: <script>:
>>> User-Provided CLI '+31306665648 [2] [3]' taken from From-User -
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6522]: NOTICE: <script>:
>>> Network-Provided CLI '+31306665648 [2] [3]' taken from From-User -
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6522]: NOTICE: <script>:
>>> Setting '+31306665648 at ims.imscore.net' as initiating user-provided
>>> CLI -
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6522]: NOTICE: <script>:
>>> Setting '+31306665648 at ims.imscore.net' as initiating
>>> network-provided CLI -
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6522]: NOTICE: <script>:
>>> Callee is not local -
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6522]: NOTICE: <script>:
>>> Call to unknown user -
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6522]: NOTICE: <script>:
>>> Setting acc source-leg for uuid '0': '0|+31306665648 [2]
>>>
>>> [3]|139.156.126.49|+31306665648
>>> [2]|||0|||0|call|139.156.126.49|1439640027.462624|||||||||||'
>>> -
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6522]: NOTICE: <script>:
>>> Setting acc destination-leg for uuid '0':
>>> '0|||0|<null>|0|<null>|127.0.0.1|<null>|127.0.0.1|2|||||||||||' -
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6519]: NOTICE: <script>:
>>> New request on proxy - M=ACK
>>>
>>>
>>>
>> R=sip:ngcp-lb;tgrp=9752;trunk-context=ipic.imscore.net at 87.239.101.193:5060
>> ;ngcpct=7369703a3132372e302e302e313a35303830
>>
>>> F=sip:+31306665648 at ims.imscore.net T=sip:31756418049 at 192.168.111.25
>>> IP=139.156.126.49:5060 [3] [4] (127.0.0.1:5060 [6] [7])
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:27 [6521]: NOTICE: <script>:
>>> New request on proxy - M=BYE
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> F=sip:+31306665648 at ims.imscore.net T=sip:31756418049 at 192.168.111.25
>>> IP=139.156.126.49:5060 [3] [4] (127.0.0.1:5060 [6] [7])
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:31 [6523]: NOTICE: <script>:
>>> New request on proxy - M=BYE
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> F=sip:+31306665648 at ims.imscore.net T=sip:31756418049 at 192.168.111.25
>>> IP=139.156.126.49:5060 [3] [4] (127.0.0.1:5060 [6] [7])
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:35 [6520]: NOTICE: <script>:
>>> New request on proxy - M=BYE
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> F=sip:+31306665648 at ims.imscore.net T=sip:31756418049 at 192.168.111.25
>>> IP=139.156.126.49:5060 [3] [4] (127.0.0.1:5060 [6] [7])
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:37 [6522]: NOTICE: <script>:
>>> New request on proxy - M=BYE R=sip:127.0.0.1:5080;prxroute=1
>>> F=sip:31756418049 at 192.168.111.25
>>> T=sip:0306665648 at 87.239.101.193;user=phone IP=192.168.111.25:5060
>>> [5]
>>> [6] (127.0.0.1:5060 [6] [7])
>>> ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:37 [6519]: NOTICE: <script>:
>>> NAT-Reply - S=200 - OK M=BYE IP=192.168.111.25:5060 [5] [6]
>>> (127.0.0.1:5080 [4] [5]) ID=1729768205212000211650 at 192.168.111.25
>>> (spce|kamailio-proxy.log) Aug 15 14:00:39 [6521]: NOTICE: <script>:
>>> New request on proxy - M=BYE
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> F=sip:+31306665648 at ims.imscore.net T=sip:31756418049 at 192.168.111.25
>>> IP=139.156.126.49:5060 [3] [4] (127.0.0.1:5060 [6] [7])
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:43 [6524]: NOTICE: <script>:
>>> New request on proxy - M=BYE
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> F=sip:+31306665648 at ims.imscore.net T=sip:31756418049 at 192.168.111.25
>>> IP=139.156.126.49:5060 [3] [4] (127.0.0.1:5060 [6] [7])
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:47 [6523]: NOTICE: <script>:
>>> New request on proxy - M=BYE
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> F=sip:+31306665648 at ims.imscore.net T=sip:31756418049 at 192.168.111.25
>>> IP=139.156.126.49:5060 [3] [4] (127.0.0.1:5060 [6] [7])
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>> (spce|kamailio-proxy.log) Aug 15 14:00:51 [6517]: NOTICE: <script>:
>>> New request on proxy - M=BYE
>>>
>>>
>>>
>> R=sip:127.0.0.1;r2=on;lr=on;ftag=434A31C2-55CF29CD000D42FC-5A3BD700;ngcplb=yes
>>
>>> F=sip:+31306665648 at ims.imscore.net T=sip:31756418049 at 192.168.111.25
>>> IP=139.156.126.49:5060 [3] [4] (127.0.0.1:5060 [6] [7])
>>>
>>>
>>> ID=1729768205212000211650 at 192.168.111.25_b2b-1
>>>
>>> Tristan
>>>
>>> On 2015-08-14 10:55, Tristan Delsol wrote:
>>>
>>> Hi All,
>>>
>>> I'm currently testing an interconnect with a telco and ran in to
>>> an
>>> issue with faxing.
>>> I have two SIP trunks to the telco. One for incoming calls and
>>> for
>>> outgoing calls.
>>> I have rewrite rule sets from removing + sign for incoming calls
>>> and
>>> rewrite rule sets for adding + sign for outgoing calls
>>>
>>> When I start a fax from behind the SPCE out to the telco
>>> everything
>>> goes normal, until I get an INVITE from the telco to switch to
>>> T.38.
>>> The INVITE comes in but no rewrite is done on the number which
>>> leaves
>>> the + sign in front of the e164 number and SPCE doesn't recognize
>>> as a
>>> subscriber so the whole fax is cancelled.
>>>
>>> Any idea how I can solve this one?
>>>
>>> Thanks,
>>> Tristan
>>> _______________________________________________
>>> Spce-user mailing list
>>> Spce-user at lists.sipwise.com
>>> https://lists.sipwise.com/listinfo/spce-user [7] [1]
>>> _______________________________________________
>>> Spce-user mailing list
>>> Spce-user at lists.sipwise.com
>>> https://lists.sipwise.com/listinfo/spce-user [7] [1]
>>>
>>
>>  --
>>
>>  MATTHEW OGDEN
>>
>>  Management
>>
>>  TenacIT
>>
>>  STRATEGIC IT CONSULTING • ADVANCED NETWORKING • VIRTUALISATION
>>
>>  CUSTOM DEVELOPMENT • HOSTING • SYSPRO SUPPORT  • MS LICENSING
>>
>>  National Tel: 041 10 10 100 | Cell: 084 205 4445 | Email:
>>  matthew at tenacit.net
>>
>>  CT Tel: 021 201 0333 | Skype Name: matthew.ogden | Web:
>>  http://www.tenacit.net [8] [8]
>>
>>  Links:
>>  ------
>>  [1] https://lists.sipwise.com/listinfo/spce-user [7]
>>  [2] http://ims.imscore.net [1]
>>  [3] tel:%2B31306665648
>>  [4] http://139.156.126.49:5060 [3]
>>  [5] http://127.0.0.1:5080 [4]
>>  [6] http://192.168.111.25:5060 [5]
>>  [7] http://127.0.0.1:5060 [6]
>>  [8] http://www.tenacit.net/ [9]
>>
>> --
>>
>> MATTHEW OGDEN
>>
>> Management
>>
>> TenacIT
>>
>> STRATEGIC IT CONSULTING • ADVANCED NETWORKING • VIRTUALISATION
>>
>> CUSTOM DEVELOPMENT • HOSTING • SYSPRO SUPPORT  • MS LICENSING
>>
>> National Tel: 041 10 10 100 | Cell: 084 205 4445 | Email:
>> matthew at tenacit.net
>>
>> CT Tel: 021 201 0333 | Skype Name: matthew.ogden | Web:
>> http://www.tenacit.net [9]
>>
>>
>>
>> Links:
>> ------
>> [1] http://ims.imscore.net
>> [2] tel:%2B31306665648
>> [3] http://139.156.126.49:5060
>> [4] http://127.0.0.1:5080
>> [5] http://192.168.111.25:5060
>> [6] http://127.0.0.1:5060
>> [7] https://lists.sipwise.com/listinfo/spce-user
>> [8] http://www.tenacit.net
>> [9] http://www.tenacit.net/
>
>

-- 

*Matthew Ogden*

Management

TenacIT

*Strategic IT Consulting *•* Advanced Networking *• *Virtualisation*

*Custom Development *• *Hosting *• *Syspro Support  *• *MS Licensing*

National Tel: 041 10 10 100 | Cell: 084 205 4445 | Email:
matthew at tenacit.net

CT Tel: 021 201 0333 | Skype Name: matthew.ogden | Web:
http://www.tenacit.net
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