[SR-Users] Kamailio as MS-Teams SBC

[Terry Tailor]

Hi Davide may be it can help here is docker file for compiling and running
rtp engine

file: Dockerfile
---
FROM debian:stretch

RUN apt-get update \
  && apt-get -y --quiet --force-yes upgrade curl iproute2 \
  && apt-get install -y --no-install-recommends ca-certificates gcc g++
make build-essential git iptables-dev libavfilter-dev \
  libevent-dev libpcap-dev libxmlrpc-core-c3-dev markdown \
  libjson-glib-dev default-libmysqlclient-dev libhiredis-dev libssl-dev \
  libcurl4-openssl-dev libavcodec-extra gperf libspandsp-dev
libwebsockets-dev\
  && cd /usr/local/src \
  && git clone https://github.com/sipwise/rtpengine.git \
  && cd rtpengine/daemon \
  && git checkout mr8.5 \
  && make && make install \
  && cp /usr/local/src/rtpengine/daemon/rtpengine /usr/local/bin/rtpengine \
  && rm -Rf /usr/local/src/rtpengine \
  && apt-get purge -y --quiet --force-yes --auto-remove \
  ca-certificates gcc g++ make build-essential git markdown \
  && rm -rf /var/lib/apt/* \
  && rm -rf /var/lib/dpkg/* \
  && rm -rf /var/lib/cache/* \
  && rm -Rf /var/log/* \
  && rm -Rf /usr/local/src/* \
  && rm -Rf /var/lib/apt/lists/*

VOLUME ["/tmp"]

EXPOSE 12221/udp

COPY ./entrypoint.sh /entrypoint.sh

COPY ./rtpengine.conf /etc

ENTRYPOINT ["/entrypoint.sh"]

CMD ["rtpengine"]
----

file: entrypoint.sh
---
#!/bin/bash
set -e

PATH=/usr/local/bin:$PATH

LOCAL_IP="$(ip route get 8.8.8.8 | head -1 | cut -d' ' -f7)"
PUBLIC_IP="$(curl ifconfig.me)";

if [ -n "$PUBLIC_IP" ]; then
  MY_IP="$LOCAL_IP"!"$PUBLIC_IP"
else
  MY_IP=$LOCAL_IP
fi

sed -i -e "s/MY_IP/$MY_IP/g" /etc/rtpengine.conf

if [ "$1" = 'rtpengine' ]; then
  shift
  exec rtpengine --config-file /etc/rtpengine.conf  "$@"
fi

exec "$@"
---

file: rtpengine.conf
---
[rtpengine]
interface=MY_IP
foreground=true
log-stderr=true
listen-ng = 12221
port-min = 30000
port-max = 40000
recording-dir=/tmp
recording-method=pcap
recording-format=eth
log-level=6
delete-delay=0
---

file: docker-compose.yml
---
version: '3.5'
services:
  rtpengine:
    build:
      context: ./
      dockerfile: Dockerfile
    restart: always
    network_mode: "host"
    tmpfs:
      - /tmp
    container_name: rtpengine
    hostname: rtpengin
---

Thanks,

On Tue, Jan 19, 2021 at 3:08 PM Davide Zanichelli <dav.zanichelli at gmail.com>
wrote:

> Thanks you for your answer !!!
>
> Which distro are you using?
> which karnel ?
> i ve tried with ubuntu 16.04 debian 10 or centos 7
> but fails
>
>
> thanks you !!!
>
> Davide
>
> Il giorno mar 19 gen 2021 alle ore 10:53 David Villasmil <
> david.villasmil.work at gmail.com> ha scritto:
>
>> The instructions to build rtpengine work, have you tried those?
>>
>> https://github.com/sipwise/rtpengine
>>
>> Take a look at the readme file. Last I used was v6 and that worked
>> properly for me.
>>
>> On Tue, 19 Jan 2021 at 09:38, Davide Zanichelli <dav.zanichelli at gmail.com>
>> wrote:
>>
>>> Thanks You for your answer !
>>> so can you give me a configuration template ?
>>>
>>> so if i understand correctly, for the srtp > rtp conversion, i should
>>> use a box (asterisk for example)
>>> in the middle,
>>>
>>> is there any alternative to rtpengine ?
>>>
>>> Thanks You
>>>
>>> Davide
>>>
>>> Il giorno mar 19 gen 2021 alle ore 09:55 Bugaian A. Vitalie <
>>> bugaian at gmail.com> ha scritto:
>>>
>>>> Hi,
>>>>
>>>> its simple: They need srtp so you make your pbx to accept srtp,
>>>> or have a box(pbx) before it to accept srtp and terminate to your pbx
>>>> that does not suport srtp?...
>>>>
>>>> I had it working to kamailio and softphones.
>>>>
>>>> Vitalie.
>>>>
>>>> On Tue, Jan 19, 2021 at 10:43 AM Davide Zanichelli <
>>>> dav.zanichelli at gmail.com> wrote:
>>>>
>>>>> Hello everybody!
>>>>>
>>>>> i am trying a setup of kamailio like sbc for ms teams,
>>>>> I currently have the following scenario:
>>>>>
>>>>> TLS Connection OK
>>>>>
>>>>> Out Call ok (except BYE 481 on reply)
>>>>>
>>>>> my problem is in incoming calls
>>>>> microsoft only supports srtp
>>>>> and my pbx (freeswitch based) only works with rtp,
>>>>>
>>>>> now i was reading that you need to use rtpengine to manage srtp to rtp,
>>>>>
>>>>> unfortunately it seems that rtpengine has become very difficult to
>>>>> build especially with recent os,
>>>>> I was wondering if it is possible to have an alternative to rtpengine
>>>>> for managing the srtp (rtpproxy does not seem to work)
>>>>>
>>>>> has anyone managed to get a working setup?
>>>>>
>>>>> in case it is possible to send a configuration template?
>>>>>
>>>>> Thanks You !!!
>>>>>
>>>>> Davide
>>>>> _______________________________________________
>>>>> Kamailio (SER) - Users Mailing List
>>>>> sr-users at lists.kamailio.org
>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>
>>>> _______________________________________________
>>>> Kamailio (SER) - Users Mailing List
>>>> sr-users at lists.kamailio.org
>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>> --
>> Regards,
>>
>> David Villasmil
>> email: david.villasmil.work at gmail.com
>> phone: +34669448337
>> _______________________________________________
>> Kamailio (SER) - Users Mailing List
>> sr-users at lists.kamailio.org
>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
> _______________________________________________
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