May 2013 - FreeSWITCH-users - FreeSWITCH Mailing Lists

FreeSWITCH Weekly News and Notes
by Michael Collins 20 May '13

20 May '13

Hello! The FreeSWITCH team is busy on several fronts but the most exciting news at the moment is that Packt Publishing has told us the new book<http://www.packtpub.com/freeswitch-1-2/book>is officially off to production! If all goes well it should be available in the next few weeks. (It looks like they changed the cover art - once we know for sure what's on the cover we'll give it a nickname like we did with the "bridge" book.) Last week we had an impromptu discussion<http://wiki.freeswitch.org/wiki/FS_weekly_2013_05_15>on various FreeSWITCH topics. We have rescheduled the VoIPMonitor.org conference call presentation for May 29th. Also, we have tentatively scheduled the HOMER presentation for June 5. That means we will have another open discussion<http://wiki.freeswitch.org/wiki/FS_weekly_2013_05_22>for this Wednesday's conference call. As a tip, if you would like to browse around and see what has been committed in FreeSWITCH lately you can use the Fisheye site<http://fisheye.freeswitch.org/>. Here you can browse the source code and look at recent commits to see what has changed. If you prefer to look at the commits without the source code browser then try out the HTML front-end <http://fisheye.freeswitch.org/>for our FreeSWITCH git repository. We also have repositories for contributions <http://git.freeswitch.org/git/freeswitch-contrib/> and sample configuration <http://git.freeswitch.org/git/freeswitch-sample-configs/>sets. Have a great week! -- Michael S Collins ClueCon Team http://www.cluecon.com 877-7-4ACLUE

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directory sql tables
by adahary 20 May '13

20 May '13

I planning to switch from the directory xml files to sql tables using mod_xml_curl.I've already defined ODBC/Mysql and got all core sql tables installed.I've search for some sql tables for directory with all params/variables but couldn't find any.With Astwerisk RT there is a clear WiKi which layout all sql tables with user/system fields.Are there any ready to use directory sql tables? OR should I make my own tablesRegardsAssaf -- View this message in context: http://freeswitch-users.2379917.n2.nabble.com/directory-sql-tables-tp759087… Sent from the freeswitch-users mailing list archive at Nabble.com.

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Thoughts on security/code injection/etc. in FS when allowing user supplied data
by Nathan Neulinger 20 May '13

20 May '13

I've noticed several places in FS code and examples where it isn't safe at all to take user supplied data. An easy example is the use of mailer_app: #ifdef WIN32 switch_snprintf(buf, B64BUFFLEN, "\"\"%s\" -f %s %s %s < \"%s\"\"", runtime.mailer_app, from, runtime.mailer_app_args, to, filename); #else switch_snprintf(buf, B64BUFFLEN, "/bin/cat %s | %s -f %s %s %s", filename, runtime.mailer_app, from, runtime.mailer_app_args, to); #endif another is ANY use of passing channel vars or data to a system or bgsystem command. This isn't an issue normally, but if you want to give limited ability for users to control their own dial rules, then you wind up having to be very careful with processing the data to make sure it's safe. That's always a good idea, but it still seems like a bad idea to take that data and then directly use it in a completely unsafe context like a parsed command line. For the voicemail notify case, seems like an easy answer would be something like a "vm-notify-hook", which at that point, could call out to lua or perl to do the actual sending in a safe manner, passing the recipient/sender/etc. as data instead of on cmd line. For the 'passing channel vars...' case, I think it would be good to have a 'system_json' and 'bgsystem_json' set of routines that would pass channel data to the script on stdin in json format. Regardless of implementation of either of those, I think it would be worthwhile to have a shell_escape() routine in the core utilities to allow the current syntax to be used more safely. -- Nathan ------------------------------------------------------------ Nathan Neulinger nneul(a)mst.edu Missouri S&T Information Technology (573) 612-1412 System Administrator - Architect

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Recommendation for GUI to PBX
by Cesar Bermudez 19 May '13

19 May '13

Hi all. What its the best GUI for use FS in pbx? and why? bluebox? fusion? any other? Regards.

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mod_spy problem
by Vitali 19 May '13

19 May '13

Hi, I have a problem with mod_spy - it just plays moh and do not actually spy. Here`s my dialplan: /<extension name="user_spy"> <condition field="destination_number" expression="^\89(\d{4})$"> <action application="answer"/> <action application="userspy" data="$1@${domain_name}"/> </condition> </extension>/ When I dial 891000, for example, it`s just plays moh despite the fact that I`m making and receiving calls from user 1000. When I run a command /userspy_show/ in fs_cli, I get the following output: /: 54995932-2a7c-11de-af08-93e49196b898 1 total spy/ with no user supplied for spying. There`s no errors in logs. -- View this message in context: http://freeswitch-users.2379917.n2.nabble.com/mod-spy-problem-tp7590846.html Sent from the freeswitch-users mailing list archive at Nabble.com.

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Bounty - FS-5446
by Cal Leeming [Simplicity Media Ltd] 19 May '13

19 May '13

Hello all, I have thrown up a bounty on the following ticket; http://jira.freeswitch.org/browse/FS-5446 Any takers? Thanks Cal

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Complex IVRs using data from MySQL
by Telecube - John 19 May '13

19 May '13

Ok, if someone could point me in the right direction I would be very grateful. I need to integrate database lookups into multi level IVRs to gather call routing info. The lookups are for variable multi digit keypress data as well as multiple sets of routing information. So far I can see my options are xml_curl or hand the call off to a lua script to handle the processing. I can catch the multi digit keypresses with regex and give that detail to a lua script, no problem. I'm hoping to be able to use the mod_ivr process as much as possible but I'm struggling to see how I can get data back into the call flow after dishing the duty off to lua. Can anyone point me down the right path please? Should I be happy to pass it off to lua and finish the lookups and routing in there? Should I try to keep as much as possible in the core ivr? Thanks.. - John

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Detecting Errors when dialing through multiple gateways
by Sean Devoy 18 May '13

18 May '13

Hi All, I have been having pretty good luck with redundancy by dialing through multiple gateways like: <action application="bridge" data="sofia/gateway/cheap/1xxxxxxxxxx, [leg_delay_start=8]sofia/gateway/expensive/1xxxxxxxxxx"/> If gateway cheap fails, the call goes through on the expensive gateway. That is fine, but I would like an email notification of the failure on the cheap gateway. Is there any way to do that? The support group at the gateway vender is very good at correcting the problem when notified. I would love to send them an email of failures automatically. Thanks, Sean

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FreeTDM PRI channel monitoring
by Ashish gautam 18 May '13

18 May '13

Hi, I want to get the status of each PRI channel through event socket. I am sending api command "api ftdm dump <span> <channel>" to get the status of each channel one by one. Its returning lots of other information also which I do not want. Is there any other efficient and recommended way to do this? Regards, -- Ashish

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advise to troubleshoot a call
by Philippe Le Toquin 18 May '13

18 May '13

Hello, Recently I (well my wife) is having voice problem when she is on a call. Typically she can hear people but they can't The problem is that it is not all the time and when it happens it last a few seconds then all back to normal... then later on it happens again. I am still in the process of trying to find if there is a pattern in the problem but I would like to be able to look at the log from FS. What would you recommend to be able to look at the log (what debug level). Any tips to make it easier to identify an issue in the log (like message to look for?) Thanks Philippe

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