February 2016 - FreeSWITCH-users - FreeSWITCH Mailing Lists

mod_managed: Failed to create shadow copy
by Shane Mitchell 07 Feb '16

07 Feb '16

Hi everyone, I'm after a bit of mod_managed help from those with experience. To explore how we can use mod_managed, I'm trying to simply get it up-and-running. To test, I'm trying to run Demo.csx (from source), however an ExecutionEngineException (see below) is always thrown whenever trying to load the csx file. I'm using latest stable Debian Jessie and FreeSWITCH (from packages). While I've been programming in C# since 1.0, I've never used mono, so I simply installed mono-complete from packages. I have also tested mono (and FreeSWITCH) successfully. I have researched related errors online with no luck or inspiration for a solution. Does anyone know why I would get this problem? Do I need to create any symlinks, install any packages, create directories (other than conf/mod/managed), etc to get mod_managed to work on a new install? Thanks all, much appreciated. [ALERT] switch_cpp.cpp:1356 Exception loading /usr/lib/freeswitch/mod/managed/Demo.csx: System.ExecutionEngineException: Failed to create shadow copy (ensure directory exists). Server stack trace: at (wrapper managed-to-native) System.AppDomain:LoadAssembly (System.AppDomain,string,System.Security.Policy.Evidence,bool) at System.AppDomain.Load (System.String assemblyString, System.Security.Policy.Evidence assemblySecurity, Boolean refonly) [0x00000] in <filename unknown>:0 at System.AppDomain.Load (System.String assemblyString, System.Security.Policy.Evidence assemblySecurity) [0x00000] in <filename unknown>:0 at (wrapper remoting-invoke-with-check) System.AppDomain:Load (string,System.Security.Policy.Evidence) at System.Reflection.Assembly.Load (System.String assemblyString, System.Security.Policy.Evidence assemblySecurity) [0x00000] in <filename unknown>:0 at System.Activator.CreateInstance (System.String assemblyName, System.String typeName, Boolean ignoreCase, BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture, System.Object[] activationAttributes, System.Security.Policy.Evidence securityInfo) [0x00000] in <filename unknown>:0 at System.Activator.CreateInstance (System.String assemblyName, System.String typeName, System.Object[] activationAttributes) [0x00000] in <filename unknown>:0 at System.AppDomain.CreateInstance (System.String assemblyName, System.String typeName, System.Object[] activationAttributes) [0x00000] in <filename unknown>:0 at (wrapper remoting-invoke-with-check) System.AppDomain:CreateInstance (string,string,object[]) at System.AppDomain.CreateInstanceAndUnwrap (System.String assemblyName, System.String typeName, System.Object[] activationAttributes) [0x00000] in <filename unknown>:0 at (wrapper remoting-invoke-with-check) System.AppDomain:CreateInstanceAndUnwrap (string,string,object[]) at (wrapper xdomain-dispatch) System.AppDomain:CreateInstanceAndUnwrap (object,byte[]&,byte[]&,string,string) Exception rethrown at [0]: at (wrapper xdomain-invoke) System.AppDomain:CreateInstanceAndUnwrap (string,string,object[]) at (wrapper remoting-invoke-with-check) System.AppDomain:CreateInstanceAndUnwrap (string,string,object[]) at FreeSWITCH.Loader.loadFile (System.String fileName) [0x00000] in <filename unknown>:0

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hook to event or startup script which will hook to events?
by Mimiko 07 Feb '16

07 Feb '16

Hello. I'm running FS without problems for 3 years. I installed back then FS version 1.3.13b cad607d72e and it is running till now. I know it is old, but its stable. Back then I've used a start-up script in lua to catch callcenter's events and populate DB. Script is started and hooked to callcenter events. Now I want to add a event parse script for RECORD_STOP event. I've seen in lua.conf that I can use <hook event="RECORD_STOP" script="script.lua"/> to autohook and execute script for every RECORD_STOP event. For testing I've write a small script to just log info: scriptname=argv[0] freeswitch.consoleLog("notice", scriptname.." Starting...\n") isdebug=false min_rec_secs=0 -- In seconds. api = freeswitch.API() recordings_dir = api:execute("global_getvar", "recordings_dir") databasename = api:execute("global_getvar", "freeswitch_data_db") databaseuser = api:execute("global_getvar", "freeswitch_databaseuser") databasepass = api:execute("global_getvar", "freeswitch_databasepass") function printlog (a,...) -- First paramter - line number -- Second parameter - lvl=debug,info,notice,warning,err,crit,alert -- Third parameter - the message -- Calling: printlog([line number,][log lvl,]message) local arg={...} line=0 lvl="debug" msg=a if (type(a)=='number' and a>0) then line=a else line=0 end maybe_lvl=string.lower(a) if (maybe_lvl=="debug" or maybe_lvl=="info" or maybe_lvl=="notice" or maybe_lvl=="warning" or maybe_lvl=="err" or maybe_lvl=="crit" or maybe_lvl=="alert") then lvl=maybe_lvl elseif (#arg>=1) then maybe_lvl=string.lower(arg[1]) if (maybe_lvl=="debug" or maybe_lvl=="info" or maybe_lvl=="notice" or maybe_lvl=="warning" or maybe_lvl=="err" or maybe_lvl=="crit" or maybe_lvl=="alert") then lvl=maybe_lvl end end if (#arg==1) then msg=arg[1] end if (#arg==2) then msg=arg[2] end if not (isdebug and lvl=="debug") then freeswitch.consoleLog(lvl,scriptname .. " (" .. line .."): " .. msg .. "\n") end end--]] freeswitch.consoleLog("notice", scriptname..event:serialize("").."\n") After restarint FS it is working and event variables are printed. But after a while (several hours of working) FS segfaults to this: kernel: [13834853.520624] freeswitch[31414]: segfault at 7f5b05178ca0 ip 00007f5b08100f32 sp 00007f5ae7d32d38 error 4 in libc-2.11.3.so[7f5b08085000+159000] If I comment <hook event="RECORD_STOP" script="script.lua"/>, then FS runs ok without segfaults. My questions: 1) What is the better way to parse events: using start-up script which will hook to events and waits for them, or hook script to event in lua.conf and run the script only when event arise? 2) Why it segfaults on this script? Same code (function and getting variables) in other scripts, started from dialplan, does not segfault FS. 3) Was this a known bug and latest stable version will resolve the problem? I would not want to upgrade if the problem will remain. Thank you. -- Mimiko desu.

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TCP registrations
by Gregor 07 Feb '16

07 Feb '16

I think I am missing something. I would like to configure freeswitch that listens on TCP port for client registrations (internal profile). As I read, freeswitch should do this by default. But freeswitch responses only on UDP protocol. Is there a conf setting for specify also tcp for registrations.

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FYI in case anyone else was using the CallCap blocklist
by Nathan Neulinger 06 Feb '16

06 Feb '16

It's been taken offline by the company, and they indicate they have no plans to bring the XML download back. Is anyone here making any use of a similar data feed, or the FTC robocall complaint data or similar? Any recommendations? -- Nathan ------------------------------------------------------------ Nathan Neulinger nneul(a)mst.edu Missouri S&T Information Technology (573) 612-1412 System Administrator - Architect

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Run php script on execute_on_answer
by Adrian Andrei 06 Feb '16

06 Feb '16

Hello, I try to execute a php script after the call is answered but I can't figure how. I need something like this. <extension name="execOnAnswer"> <condition field="destination_number" expression="^07"> <action application="bridge" data="{execute_on_answer='run http://localhost/answer.php?uuid=$uuid&bnr=$1'}sofia/external/$1(a)2.2.2.2"/> </condition> </extension> So what I try to do is to pass the uuid and caller-destination-number to an external source after the call is answered. Is any other approach? Thank you

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Forward call to a destination without changing RURI
by Aqs Younas 06 Feb '16

06 Feb '16

Hi, I receive Invite from vendor with i need to forward to a destination ip set in special header X-Dest without changing the RURI. When I try to bridge this invite <action application="bridge" data="sofia/external/${destination}@${sip_h_X-Dest}" /> It changes the RURI. I need to preserve the RURI but set destination to X-Dest header. How can i forward call to that IP without changing the RURI. Best Regard. <https://www.avast.com/sig-email> This email has been sent from a virus-free computer protected by Avast. www.avast.com <https://www.avast.com/sig-email> <#396301616_DDB4FAA8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Re: [Freeswitch-users] Suspicious Incoming Calls
by Ahmed Habiba 06 Feb '16

06 Feb '16

Hello, You have to use one of the below options: Option1: if you are not allowing another system to access you system without username and password i.e. you make your system as sip gateway for other trusted company, the you can remove the file named “external.xml” under /usr/local/freeswitch/conf/sip_profiles/, then either restart your instance or run “reload mod_sofia” in fs_cli Note be sure that you take a copy of external.xml before you remove it. Option2: add the below line in you external.xml profile mentioned above, this will not allow any external system to login expect if it has been allowed in you ACL list or it has a username/password this will make things little hard, then you may install fail2ban module. all cases you need to restart your profiles. Thanks, Ahmed Habiba > > > > From: Jude Mukundane <jude19love(a)gmail.com> > Subject: Re: [Freeswitch-users] Suspicious Incoming Calls > Date: February 6, 2016 at 6:50:23 PM GMT+3 > To: FreeSWITCH Users Help <freeswitch-users(a)lists.freeswitch.org> > Reply-To: FreeSWITCH Users Help <freeswitch-users(a)lists.freeswitch.org> > > > Hello Deepika, > > This is common for anyone running FS in the cloud with discoverable ports. Lots of people just run scripts that crawl the internet in search of SIP servers. After getting one they try bogus invites to try and see if they can get calls through - if your server is forwarding to PSTN, you could end up with a bill in thousands of dollars in minutest. In my case, I use a simple IP Table in Ubuntu (more like an access control list) to define allowed and non allowed IPs. > > Can someone please elaborate on a measure that inolves config level security because blocking out masses is not goot Internet Citizenry. > > Jude > > On Sat, Feb 6, 2016 at 2:24 PM, Deepika Yadav <deepikay(a)iiitd.ac.in <mailto:deepikay@iiitd.ac.in>> wrote: > Hi, > > I have microsip installed in my windows configured for one or two SIP accounts for different Freeswitch servers. I am receiving a call from 2022@myPublicIP repeatitively even if I disconnect from all the accounts, these Freeswitch servers are hosted at cloud machine. > > Is it a case of hacking the servers. What measures should I take to secure both my servers and system. > > Regards, > Deepika > > _________________________________________________________________________ > Professional FreeSWITCH Consulting Services: > consulting(a)freeswitch.org <mailto:consulting@freeswitch.org> > http://www.freeswitchsolutions.com <http://www.freeswitchsolutions.com/> > > Official FreeSWITCH Sites > http://www.freeswitch.org <http://www.freeswitch.org/> > http://confluence.freeswitch.org <http://confluence.freeswitch.org/> > http://www.cluecon.com <http://www.cluecon.com/> > > FreeSWITCH-users mailing list > FreeSWITCH-users(a)lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users <http://lists.freeswitch.org/mailman/listinfo/freeswitch-users> > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users <http://lists.freeswitch.org/mailman/options/freeswitch-users> > http://www.freeswitch.org <http://www.freeswitch.org/> > >

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Suspicious Incoming Calls
by Deepika Yadav 06 Feb '16

06 Feb '16

Hi, I have microsip installed in my windows configured for one or two SIP accounts for different Freeswitch servers. I am receiving a call from 2022@myPublicIP repeatitively even if I disconnect from all the accounts, these Freeswitch servers are hosted at cloud machine. Is it a case of hacking the servers. What measures should I take to secure both my servers and system. Regards, Deepika

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Fellow FreeSWITCHERS
by Blake Priddy 06 Feb '16

06 Feb '16

It's time for the freeswitch annual dev meeting. The freeswitch developers we love and care for so much will be gathering to talk business, future development, and just talking and networking! I am saying this because I have found out that most of the devs are paying out of their pocket for their dinner, hotel, and travel. This is not okay with me. Therefore I have made a sizeable donation on the freeswitch website for the developers to use for food, room, flight, etc. I honestly don't care what is done with my donation, I just know it will be put to good use. I am encouraging all of you out there to spare some funds for this team that has helped us make money, and/or help others save money. Let's give this team the meal they deserve! Thanks freeswitch devs for all you do and continue to do to help others save money and be successful in their VoIP implementations. We appreciate you so much!! Support the team that built the dream! PayPal for the devs: paypal(a)freeswitch.org or visit the website and click the donate button! https://freeswitch.org/

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mod_esf with polycom
by Peter Hartmann 05 Feb '16

05 Feb '16

Hey, how do you use mod_esf with Polycom? The source suggests that it's supported, but the arguments in the documentation seem specific to Linksys. From using the feature directly from a handset, I imagine we have to pass multicast-address, multicast-port and group-number. I've tried every combination and permutation with no luck. The reason I'm doing this is because if the emergency group number is used, the announcements will be at full volume regardless of the hands-free volume setting. And also I'm looking to do this in FS because I'm bridging in another PA system also. Thanks, Peter Hartmann Hartmann Computer Consulting http://blog.hartmanncomputer.com (212)203-8870 If I can't explain it to you in plain language, that means I don't understand it.

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