[Freeswitch-users] mod_openzap & PRI

Evgeniy Zolotov zolotov at altron.ua
Thu Sep 18 12:04:48 EDT 2008


Thanks for all. But I am in perplexity now - how we can khow, what any certain dialect is carried out?

Look for this example:

> If we'll specify for nonexistent dialects:
>
>  <pri_spans>
>    <span id="1"> 
>      <param name="dialect" value="ABC" />
>    </span>
>    <span id="2"> 
>      <param name="dialect" value="XYZ" />
>    </span>
>  </pri_spans>
>
> - then >load mod_openzap is carried out successfully and >oz dump <i> <j> gives us same result like before.

What dialect is carried out here?
  ----- Original Message ----- 
  From: Michael Collins 
  To: freeswitch-users at lists.freeswitch.org 
  Sent: Thursday, September 18, 2008 5:39 PM
  Subject: Re: [Freeswitch-users] mod_openzap & PRI


  Evgeniy,

  I'm not sure why EuroISDN isn't listed in the enum or string below because I know that Stefan (stkn on IRC) has been working on it for some time. I'll follow up with him and Mike Jerris to see what's going on there.

  As for seeing the dialect at run-time, right now you can't, although I don't see what that functionality can't be added. Most likely you'll need to use the "oz list" CLI command which gives output like this:

+OKspan: 1type: isdnchan_count: 24dialplan: XMLcontext: defaultdial_regex: fail_dial_regex: hold_music: analog_options none+OKspan: 2type: isdnchan_count: 24dialplan: XML
context: defaultdial_regex: fail_dial_regex: hold_music: analog_options noneAgain, I'll confer with the big boys and see what other information can be added, or possibly we can create a PRI-specific CLI command like "oz list pri" that shows only PRI spans. Stay tuned for more information...

  -MC


  On Thu, Sep 18, 2008 at 6:48 AM, Evgeniy Zolotov <zolotov at altron.ua> wrote:

    We have a lot of questions about mod_openzap & PRI.

    1. If to see directory libs/openzap/src/isdn it is possible to see, there are defined 
    such dialects : Q931, national, EvroISDN, DMS, 5ESS.

    $ ls *.c
    5ESSmes.c       DMSStateNT.c          mfifo.c                 Q921.c       Q931mes.c
    5ESSStateNT.c  DMSStateTE.c         nationalmes.c       Q931api.c   Q931StateNT.c
    5ESSStateTE.c  EuroISDNStateNT.c  nationalStateNT.c  Q931.c       Q931StateTE.c
    DMSmes.c         EuroISDNStateTE.c  nationalStateTE.c  Q931ie.c    Q932mes.c

    Into the file libs/openzap/src/isdn/include/Q931.h (line ~500) are defined only 4 dialects

    typedef enum                                            // Dialect enum
    {
       Q931_Dialect_Q931     = 0,
       Q931_Dialect_National = 2,
       Q931_Dialect_DMS      = 4,
       Q931_Dialect_5ESS     = 6,      // Coming soon to a PRI stack near you!
                        
       Q931_Dialect_Count
    } Q931Dialect_t;
    #define DIALECT_STRINGS "q931", "", "national", "", "dms", "", "5ess", ""

    Is it possible to add our own dialect PRI (for another submission of SUBBADDRESS, for example), if we'll add
    new files *mess.c, *StateNT.c, *StateTE and definition * into the Q931Dialect_t ?


    ================================================================================

    2. We start zaptel :

    # ls /dev/zap
    1   12  15  18  20  23  26  29  31  34  37  4   42  45  48  50  53  56  59  61  8        ctl
    10  13  16  19  21  24  27  3   32  35  38  40  43  46  49  51  54  57  6   62  9        pseudo
    11  14  17  2   22  25  28  30  33  36  39  41  44  47  5   52  55  58  60  7   channel  timer

    - zaptel is started and configured normally.

    Next load FreeSWITCH...

    We use such configuration file for mod_openzap :

    <configuration name="openzap.conf" description="OpenZAP Configuration">
      <settings>
        <param name="debug" value="1"/>
      </settings>
      <pri_spans>
        <span id="1"> 
          <param name="mode" value="user" />
          <param name="dialect" value="dms" />
          <param name="dialplan" value="XML"/>
          <param name="context" value="public" />    
        </span>
        <span id="2"> 
          <param name="mode" value="user" />
          <param name="dialect" value="q931" />
          <param name="dialplan" value="XML"/>
          <param name="context" value="public" />
        </span>
      </pri_spans>
    </configuration>


    Next we start (from FreeSWITCH console):

    freeswitch at opos8.altron.lan> console loglevel 9
    freeswitch at opos8.altron.lan> load mod_openzap
    ...
    freeswitch at opos8.altron.lan> oz dump 1 16
    API CALL [oz(dump 1 16)] output:
    span_id: 1
    chan_id: 16
    physical_span_id: 1
    physical_chan_id: 16
    type: DQ921
    state: UP
    last_state: DOWN
    cid_date:
    cid_name:
    cid_num:
    ani:
    aniII:
    dnis:
    rdnis:
    cause: NONE


    freeswitch at opos8.altron.lan> oz dump 2 16
    API CALL [oz(dump 2 16)] output:
    span_id: 2
    chan_id: 16
    physical_span_id: 2
    physical_chan_id: 47
    type: DQ921
    state: UP%!
    last_state: DOWN
    cid_date:
    cid_name:
    cid_num:
    ani:
    aniII:
    dnis:
    rdnis:
    cause: NONE

    In what manner ( using console or debugging messages ) we can see in run-time mode under what type of a dialect
    every "span" is configured ?

    If we'll specify for nonexistent dialects:

      <pri_spans>
        <span id="1"> 
          <param name="dialect" value="ABC" />
        </span>
        <span id="2"> 
          <param name="dialect" value="XYZ" />
        </span>
      </pri_spans>

    - then >load mod_openzap is carried out successfully and >oz dump <i> <j> gives us same result like before.

    What dialect is used by "span" in this case? How it can be looked?

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