Hello,

On 1/17/12 7:50 PM, Stoyan Mihaylov wrote:
We use kamailio 3.2 and imsdroid to make videocalls, send messages etc. What we have to this moment is kamailio 3.2, rtpproxy, asterisk and modified imsdroid (for Android phones). Asterisk is used for billing and some other services. Imsdroid can send 2 kind of messages. One of them is called SMS and they can go directly using kamailio and rtpproxy. I can get logs and provide here as much as possible about this type of messages.

probably this is via MESSAGE requests, which is so called page-mode instant messaging. Kamailio is enough to route them, no need for rtp proxy or msrp relay. You can do a ngrep on the kamailio server and see what sip requests are passing through.

For other messages may be exactly something like MSRP is must. Doesn't matter what and how we do, best what we receive now is "attempt" to send message. Receiver receive notification and nothing more - neither user, nor content.

Also here, watching the sip traffic on the kamailio server with ngrep should give leads about how it is done, if it is SIP at all. You can use a command like:

ngrep -d any -qt -W byline port 5060

We have lot of experience with Asterisk, but only few months with Kamailio and almost no experience with messages. May be we do something else wrong, but what I can do is using wireshark to post here some results. By the way - there are variants of imsdroid (with other names) for iPhone, and Windows - but with windows version we got bad results. Android version works very well.

Any linux/mac os x variant -- it is where I can test easily.

Thanks,
Daniel


On Tue, Jan 17, 2012 at 6:00 PM, Carsten Bock <cars...@ng-voice.com <mailto:cars...@ng-voice.com>> wrote:

    Thumbs up, definitely cool new feature!
    I hope to see you at FOSDEM, not sure if i can make it....

    Thanks!
    Carsten

    2012/1/17 Daniel-Constantin Mierla <mico...@gmail.com
    <mailto:mico...@gmail.com>>:
    > Hello,
    >
    > a new module is now on development branch, named msrp, offering
    an embedded
    > MSRP relay. Message Session Relay Protocol is specified by IETF
    ( core and
    > relay part in RFC4975 and RFC4976), one of typical use cases is
    Instant
    > Messaging sessions negotiated via INVITE-200ok-ACK, a different
    approach
    > than SIP MESSAGE request.
    >
    > There is no external dependency, the transport layer from core
    is reused to
    > manage TCP/TLS connections used for MSRP. A MSRP relay is pretty
    much an
    > independent node, thus you can run Kamailio just to deal with
    MSRP traffic.
    > But there is no problem to run Kamailio to handle SIP and MSRP
    traffic in
    > the same instance, same or different sockets (it is working even
    when
    > SIP/MSRP are sent over the same connection or different
    connections to same
    > port).
    >
    > I couldn't find a reliable and trustable open source SIP phone
    to test with
    > it so far (hints are welcome), the module was tested with
    network tools and
    > chaining Kamailio instances. Help with testing and feedback is very
    > appreciated -- I can provide guidelines to adjust the config
    file to fit
    > tester's needs, just contact me off list or via IRC channel.
    >
    > For the moment, the relation (user,session) management is done
    in the
    > config, using htable module for example (see the README), it may
    be added
    > inside the module for the future to make it easier overall,
    although is less
    > than 10 lines of config -- this is mainly for extra security
    reasons, to
    > check if the session id matches the connection that was opened
    when the
    > session was created, otherwise the user authentication
    functionality is done
    > reusing existing functions from auth module. Another benefit is
    > performances, storing local socket and connection IP/port saves
    some time to
    > lookup the connection.
    >
    > Building MSRP relay on top of SIP server was done first for the
    benefit of
    > reusing the transport layer from the core for IPv4/IPv6 and
    TCP/TLS, which
    > is mature, scalable and offers asynchronous communication.
    Besides that, you
    > have most of the config tools to route SIP requests available
    for routing
    > MSRP (authentication, authorization, IP checking, accounting,
    a.s.o.).
    >
    > I made a news post with more details:
    >
    >   *
    http://www.kamailio.org/w/2012/01/new-module-embedded-msrp-relay/
    >
    > The readme of the new module is available at:
    >
    >   * http://kamailio.org/docs/modules/devel/modules/msrp.html
    >
    > Cheers,
    > Daniel
    >
    > --
    > Daniel-Constantin Mierla -- http://www.asipto.com
    > http://linkedin.com/in/miconda -- http://twitter.com/miconda
    >
    >
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http://linkedin.com/in/miconda -- http://twitter.com/miconda

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