[Freeswitch-users] sip_ph_X- header doesn't work for freetdm-sofia call

[Saugort Dario Garcia Tovar]

Hi Xiao

I not quite sure what are you trying to accomplish.

Where are you setting the "sip_ph_X" header? at dialplan level? script 
(lua, js, etc)?

Why you dont "atomize" your actions? For example, at dialplan level:

1. First grab what freetdm give you. Use info app
2. Then capture the channel variable into a new variable
3. When you bridge/transfer the call to the sip side, make the channel 
setting
4. Use again info app to validate
5. Also check, where are you setting the "sip_ph_X" header, perhaps you 
are setting it in the wrong leg


On 5/27/2013 12:15 PM, xiaofengcanyuexp at 163.com wrote:
> Dear support
>
> I got a problem to pass through SS7 info in SIP messages. Here is the code change and test call flow:
> --------------------
> Code change and log:
> --------------------
> 1. At sangoma module:intercept ACM in ftmod_sangoma_ss7_*.c, parse the BCI and add it to the ftdmchan->call_data:
> 	sngss7_add_var(sngss7_info, "ss7_acm_bci_hex", val);
>
> 2. At freetdm  module mod_freetdm.c, get the variable and set it to channel. Of which, the "prefix" is 'sip_ph_X-':
> 	var_value = ftdm_sigmsg_get_var(sigmsg, "ss7_acm_bci_hex");
> 	if (!ftdm_strlen_zero(var_value))
> 	{
> 		snprintf(variable_name, "%sTEST-BCI-HEX", prefix);
> 		switch_channel_set_variable_printf(channel, variable_name, "%s", var_value);
> 	}
>
> >From the test call log:
>
> 2013-05-27 07:03:47.747361 [INFO] ftmod_sangoma_ss7_handle.c:362 [s1c1][1:1] [CIC:1]Rx ACM
> 2013-05-27 07:03:47.747361 [DEBUG] ftmod_sangoma_ss7_support.c:2920 [s1c1][1:1] ACM BCI parameter Hex: 0x1636
> 2013-05-27 09:00:47.127357 [DEBUG] mod_freetdm.c:5513 Get ACM BCI parameter from sangoma
> 2013-05-27 09:00:47.127357 [DEBUG] mod_freetdm.c:5530 sip_ph_X-TEST-BCI-HEX:1636
> ---------------------
> My purpose:
> ---------------------
> What I want to do is the encapsulate the sip_ph_X-TEST-BCI-HEX in the 183 SIP message. Like handling IAM  in ftdm_channel_from_event(),
> once it sets the the variable like below, the  "X-FreeTDM-SpanNumber" will automatically attached in INVITE message.
>           switch_channel_set_variable_printf(channel, "sip_h_X-FreeTDM-SpanNumber", "%d", spanid);
>
> ---------------------
> Problems:
> ---------------------
> While, what's strange are:
> 1. I add one line in dialplan/default.xml to log the variable with:
>      <action application="log" data="The BCI hex is: ${sip_ph_X-TRUSTID-BCI-HEX}"/>
>      The freeswitch.log show ${sip_ph_X-TRUSTID-BCI-HEX} is empty
> 2. The 183 message does not attach the  'X-TRUSTID-BCI-HEX'.
>
> Can someone help to figure out what's wrong with it?
>
> Thanks
> -------------------
> 2013-05-28
>
>
>
>
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-- 
Atentamente,
*Dario García*
Consultor.

CCCT, Nivel C2, Sector Yarey, Mz,
Ofc. MZ03a.
Caracas-Venezuela.
Teléfono: +58 212 9081842
Cel: +58 412 2221515
dgarcia at anew.com.ve
http://www.anew.com.ve
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