[Freeswitch-users] B leg ringing when Caller hangup before answer

Thu Feb 19 21:27:48 MSK 2015

Hi Bote,

I know the incoming call comes from VOIP Gateway that uses SIP protocol can
work well in this scenario. And I don't think it is possible to ask
customers to support extra cost in loop battery if I want FS to be a IP-PBX
solution with FXS/FXO interfaces on it.

Best regards,
Charles

2015-02-18 4:41 GMT+08:00 Bote Man <bote_radio at botecomm.com>:

> Detecting the loop battery interruption is the best way to do it if that
> is available on the analog line.
>
>
>
> Bote
>
>
>
>
>
> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Charles Wang
> *Sent:* Tuesday, 17 February, 2015 15:06
> *To:* FreeSWITCH Users Help
>
> *Subject:* Re: [Freeswitch-users] B leg ringing when Caller hangup before
> answer
>
>
>
> Hi all,
>
>
>
> I ever try to record the channel of FXO with dahdi_monitor. I can find
> ring tone and ringback tone in rx and tx when FXO caller is calling FXS or
> SIP callee. But there is no busy tone when caller hangup the call BEFORE
> the callee(FXS/SIP) answers it or the call-timeout condition is reached. I
> think it is correct, isn't it? If it is correct, I can't use busy_detect to
> handle the disconnect of channels.
>
>
>
> Best regards,
>
> Charles
>
>
>
> 2015-02-18 3:48 GMT+08:00 Charles Wang <lazy.charles at gmail.com>:
>
> Hi Bote,
>
>
>
> I use analog card named TDM400P and there are two FXS and two FXO on it.
> You can find it from this url http://www.ryu.com.tw/image/A400P.jpg.
> There is a white power outlet behind it.
>
>
>
> I am setting it at freetdm.conf and freetdm.conf.xml. But I don't know
> what loop battery is.
>
> Is there any setting I can use when I try to make a call in <extensions>
> segement?
>
>
>
> Thank you for your reply.
>
>
>
> Best regards,
>
> Charles
>
>
>
> 2015-02-17 16:00 GMT+08:00 Bote Man <bote_radio at botecomm.com>:
>
> It sounds like your originating caller is analog and is not providing
> supervision signal to indicate to the FXO port that it has released the
> call, therefore FS continues as if the call is still held active.
>
>
>
> In some configurations the loop battery is interrupted briefly to indicate
> that the call has been released. In other cases you must detect call
> progress tones that indicate that the caller is no longer present. In some
> cases there is no indication provided to the FXO port and only timers and
> the Leg B will help you.
>
>
>
> Bote
>
>
>
> *From:* Charles Wang
> *Sent:* Thursday, 12 February, 2015 11:26
> *Subject:* Re: [Freeswitch-users] B leg ringing when Caller hangup before
> answer
>
>
>
> Hi Brian,
>
>
>
> I ever try to answer the A leg in dialplan before bridge to B leg. But the
> condition is the same.
>
> B leg is still ringing after I hangup the FXO.
>
>
>
> I notice that the ringing of B leg will stop if the inbound tdm leg is FXS.
>
>
>
> Let me know if you have any suggestion.
>
>
>
> Best regards,
>
> Charles
>
>
>
> 2015-02-12 23:43 GMT+08:00 Brian West <brian at freeswitch.org>:
>
> You may wish to answer that inbound tdm leg before ringing out to the sip
> device.
>
>
>
> On Thu, Feb 12, 2015 at 3:47 AM, Charles Wang <lazy.charles at gmail.com>
> wrote:
>
> Hi all,
>
>
>
> I have a server with freeswitch 1.4.15 + freetdm(FXS/FXO). I think there
> is a bug in inbound call via the freetdm FXO device.
>
>
>
> When I try to make call from FXO and it bridges to SIP device named 1234
> via the following dialplan.
>
>
>
>  <extension name="my call test">
>
>                 <condition field="destination_number"
> expression="^(1234)$">
>
>                         <action application="set" data="call_timeout=30"/>
>
>                         <action application="bridge" data="user/1234"/>
>
>                  </condition>
>
>    </extension>
>
>
>
> Before SIP 1234 answers the call, the caller (FXO) hangup call before 1234
> answered. But the callee (SIP 1234) is still ringing and stop ring after
> about 30 seconds.
>
>
>
> It is the same condition if the callee is FXS device.
>
>
>
> I can find two channels during ringing (A leg & B leg).
>
> After the caller(FXO) onhook, the A leg is still alive and A leg will not
> be hangup before the callee (FXS or SIP) stop ring ( call-timeout ).
>
>
>
> There are two legs (A leg & B leg) after the caller FXO had hangup.
>
>
>
>
> uuid,direction,created,created_epoch,name,state,cid_name,cid_num,ip_addr,dest,application,application_data,dialplan,context,read_codec,read_rate,read_bit_rate,write_codec,write_rate,write_bit_rate,secure,hostname,presence_id,presence_data,callstate,callee_name,callee_num,callee_direction,call_uuid,sent_callee_name,sent_callee_num,initial_cid_name,initial_cid_num,initial_ip_addr,initial_dest,initial_dialplan,initial_context
>
> 53ce4fe9-9511-4625-87ae-1448421c9810,inbound,2015-02-12
> 17:33:11,1423733591,FreeTDM/2:2/1234,CS_EXECUTE,unknown,unknown,,1234,bridge,freetdm/FXS1/1,XML,TEST,PCMU,8000,64000,PCMU,8000,64000,,charles,,,RINGING,,,,,,,unknown,unknown,,1234,XML,default
>
> cf5a7ee4-cbfd-48e4-ab4e-4d757216712c,outbound,2015-02-12
> 17:33:12,1423733592,FreeTDM/1:1/,CS_CONSUME_MEDIA,unknown,unknown,,1,,,XML,default,,,,,,,,charles,,,RINGING,Outbound
> Call,1,,53ce4fe9-9511-4625-87ae-1448421c9810,,,unknown,unknown,,1,XML,default
>
>
>
>
>
> Can anyone help me to solve it or tell me why?
>
>
>
>
>
> --
>
> Best Regards
> Charles
>
>
>
>
>
> _________________________________________________________________________
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>
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>
>
>
>
>
> --
>
> Best Regards
> Charles
>
>
>
>
>
> --
>
> Best Regards
> Charles
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
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>

-- 
Best Regards
Charles
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