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write/read-codec variables
by Serge S. Yuriev 12 Apr '11

12 Apr '11

Hi I have transcoded session from iLBC to g711 and want to see this in CDRs via mod_cdr_csv. I'm writing only legA to CDR, can I get these variables from legB in this situation? Any other solution w/o parsing xml_cdr? -- wbr, Serge

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Problem with switch_core_session_send_dtmf()--no event generated, no DTMF found in channel?
by Frankie Yiu 12 Apr '11

12 Apr '11

Hi there, New to FreeSWITCH and hope someone here can answer my question. I am calling the following function during a call: 1) switch_dtmf_t dtmf = { '*', switch_core_default_dtmf_duration(0), 0}; 2) switch_status_t dtmfStatus = switch_core_session_send_dtmf(curSession, &dtmf); < return SUCCESS > 3) switch_size_t iDTMF = switch_channel_has_dtmf(switch_core_session_get_channel(oDataFrameInfo.strSession)); < return 0 > I am assuming after #2, I should get DTMF event and #3 should return 1, however I do not get any of those Could someone please tell me what is wrong with my code or if there is bug in freeSWITCH code? Thanks in avance. Frankie

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Can someone point me to examples of how to program message-based calls?
by Mark Sobkow 12 Apr '11

12 Apr '11

Recently the API behaviour changed for Erlang such that when you initiate a call, the routine immediately returns with a UUID of the launched call, rather than waiting for the call to be answered. I've been able to program for this behaviour in the call-connected case, but I'm at a loss as to what to do for detecting calls that go unanswered, time out, or which cannot be placed for various technical reasons. As a result, my call queue is filling up and choking -- I only launch so many calls at a time, and only the connected calls are getting properly processed. Unanswered and timed out calls are getting "stuck" because I don't know what events to catch and how to evaluate them. The old behaviour wasn't event-based and thereby easier to program -- but I can definitely see the advantages of shifting to a pure event-driven model. I just need to learn how to _use_ it. Thanks for any assistance you can provide.

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Passing SIP headers from b-leg to a-leg
by Javier Gallart 12 Apr '11

12 Apr '11

Hi all I'm trying to pass some custom X-headers in final failed responses (>400) from B-leg to A-leg...is there a way to accomplish this? Thanks in advance

2 1

Freeswitch deployment examples
by Richard Smith 12 Apr '11

12 Apr '11

Hi, We're currently undergoing an exercise to replace our current aging Asterisk system with something else and Freeswitch is one of the options we're considering. Our current Asterisk deployment has done us well, however the hardware is aging, and the configuration hasn't changed much except for some basic additions and changes. We're looking to replace it and add in capability to extend and embrace new channels of communication. We have some reservations over the implementation and would ideally like to talk to some people who are running it in anger. Specifically we're looking to discuss mod_callcentre or OpenACD functionality. If someone is in and around London (UK) and would like to discuss their experiences of running a callcentre on Freeswitch with us, possibly over some beers (on us of course) we'd be really grateful. Kind regards Richard Smith Systems Administrator t 0203 004 7890

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How to block CHAT done by using Twinkle
by lakshmanan ganapathy 12 Apr '11

12 Apr '11

Hi all, Can any one please tell me how to block only a particular SIP packet, especially MESSAGE packet. The reason is, The users are using Twinkle as softphone, and they are able to CHAT with other users. Now I want to disable the CHAT message. When I looked into the logs and sip trace, I found that the packet exchanged during CHAT is "MESSAGE" packet. So is there any way to block this packet alone?? or is there some other way to disable the CHAT??

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Calling card test
by alex pappas 12 Apr '11

12 Apr '11

Dear all, I'm very new to Freeswitch and I'm trying to find the best way to implement an application which will handle calling cards. The scenario is simple. A user makes a call, the call get answered and the user gives the pin number and if is correct then the user can make a call. My question is how is the best way to implement this? 1. Through a script which will be called from the dialplan 2. From Inbound ESL 3. From Outbound ESL Thank you in advance Alex

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Account ACL
by FERNANDO VILLARROEL 12 Apr '11

12 Apr '11

Hi Community. How i can identifi inbound traffic authorizated on ACL with some variable like Accountcode. For aoutbound traffic i use: <action application="set" data="accountcode=foo"/> My problem is for inbound traffic how i can identify accounts? Regards.

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FreeSWITCH sometimes binds to loopback interface during boot
by Jason White 12 Apr '11

12 Apr '11

I have FreeSWITCH installed under Debian; it is started by the init script during the boot process. External connectivity is provided via an ADSL line, attached to a PCI modem card in the machine. (Specifically, it's a Traverse Technologies Solos card.) Pppd handles the ADSL interface. Now for the problem: sometimes, the external SIP profile binds to 127.0.0.1, presumably because FreeSWITCH is started after the network has been brought up but before the ppp0 interface is established. Restarting the profile with sofia profile external restart does not correct it - I have to restart FreeSWITCH. Is there a better solution - preferably, a means of binding to the correct address without restarting FreeSWITCH? I can create scripts to execute a FreeSWITCH command whenever the PPP interface comes up, but I'd rather avoid a total shutdown/restart in that case.

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No DTMF event generated during a session when calling switch_core_session_send_dtmf()
by Frankie Yiu 11 Apr '11

11 Apr '11

Hi there, I am sending a DTMF key * through switch_core_session_send_dtmf() <in c++ code> during a session while an audio is playing through PlayAndGetDigits() in Mod_managed, but to my surprised I do not receive any DTMF event generated. Is there something else that I need to do? The status returns success. This is the actual code in my C++ switch_dtmf_t dtmf = { '*', switch_core_default_dtmf_duration(0), 0}; switch_status_t dtmfStatus = switch_core_session_send_dtmf(curSession, &dtmf); Please let me know. Thanks, Frankie

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