February 2013 - FreeSWITCH-users - FreeSWITCH Mailing Lists

DB close in lua
by Archana Venugopan 13 Feb '13

13 Feb '13

Hi, Am trying close DB connection in lua script(dbh:close()) in freeswitch. But I am getting this error 2013-02-13 16:43:41.327172 [ERR] mod_lua.cpp:102 /usr/local/freeswitch/scripts/directory.lua:66: attempt to call method 'close' (a nil value) stack traceback: Can anyone please let me know why my lua is not recognising the close function? Is there anyother ways to close my DB connection in lua? Thanks. Regards, Archana

2 1

FreeSWITCH Community Conference Call Today
by Michael Collins 13 Feb '13

13 Feb '13

Hello folks, Today's conference call agenda is here: http://wiki.freeswitch.org/wiki/FS_weekly_2013_02_13 I would like to talk about the interesting HA thread from the mailing list. Depending on the interest level there we will talk about that for the conference topic. I really want to know how people feel about this. Links to the ML threads are on the agenda page under "Items Needing Discussion." Thanks! -- Michael S Collins Twitter: @mercutioviz http://www.FreeSWITCH.org http://www.ClueCon.com http://www.OSTAG.org

1 0

Re: [Freeswitch-users] High Availability Cluster Module for FreeSWITCH
by Marcin Gozdalik 13 Feb '13

13 Feb '13

2013/2/13 Eliot Gable <egable+freeswitch(a)gmail.com>: > On Tue, Feb 12, 2013 at 5:21 PM, Marcin Gozdalik <gozdal(a)gmail.com> wrote: > What you can do is have Node A broadcast its state many times per second. > Nodes B, C, etc, all listen for that state. They keep track of the state and > when they *stop seeing* Node A, they know *something* failed. It's that > simple. I'm not arguing with that, I'm arguing something slightly different: - sometimes B and C can't agree whether A is up or not (B sees A, C does not see A) - B and C have to agree on who will take over from A - when B and C on who takes over from A (let it be B) it might possibly happen that *during* takeover B goes down and C must be able to recognize this situation and take over both from A and B Also it is a challenge to define what it actually means that a node is down. Most of the situations are clear enough, but some are tricky to check. All this are *solvable* problems, I just didn't see how those are addressed, but probably I wasn't looking hard enough. >> By "impossible" I mean handling all such gray areas. Certainly if >> you'll power down the box or unplug Ethernet it is possible to migrate >> live calls to some other box. > > > There are no such "gray" areas. That is just a fantasy you have. Everything > in computing is black or white, true or false. If you don't know, you test > and become certain. If you are prevented from accurately testing because > (for example) you cannot see the node at all anymore or interact with it in > any way, you assume the worst and nuke the box (STONITH). It's not so simple in computing - perfectly deterministic programs can exhibit chaotic behavior. The "gray" area I'm writing about is that the tests are always somewhat inaccurate, i.e. all tests tell OK, yet the software being tested does not perform its functions for the end user. > Let's say the FS box runs out of memory. Great! I designed mod_ha_cluster to [snip] > shut down and another node takes over. I agree with what you've written. I'm nitpicking that sometimes you get a timely heartbeat and yet the service in question (be it FS or any other software) does not function properly for one reason or another. You make another test to e.g. check if it responds to SIP, yet still there are real conditions under which SIP works and yet real calls can't get through (or at least some of them). Consider configuration de-synchronization, AAA subsystem malfunctioning, one node of DB going down. They are not core FS elements but IMGO when speaking of competing with commercial offerings all have to be taken into account. >> I'd just like to have HA that works everytime and everywhere and try > > > So does everyone else. That is why I want to write mod_ha_cluster. Because > what is there right now is overly complex, difficult to configure and test, > and does not and cannot catch all of the possible ways in which a FS system > can fail. Frankly I'd love to get this conversation going into more constructive area than just pure speculations. What about some kind of blueprint that would describe how such a module could work and what scenarios were considered and how such a module would deal with them? -- Marcin Gozdalik

2 1

Conference moderator via the ESL API?
by Martyn Davies 13 Feb '13

13 Feb '13

Is there a way to switch the moderator flag on/off for members of an active conference, and can this be done from the API? Also, can the moderator flag be switched on at "conference dial..."? The only way I can see to control mod status seems to be to define two profiles in the config. Regards, Martyn

2 2

ESL Mod_Conference Observations
by Usama Zaidi 13 Feb '13

13 Feb '13

Hi, Just wanted to know why don't I get any events on start/stop speaking conference joins/leaves if I do something like this: $con->events("plain","all"); $con->events("plain","CUSTOM conference::maintenance"); $con->sendRecv("filter Unique-ID $confUUID"); Instead I've to do something like this: $con->events("plain","all"); $con->events("plain","CUSTOM conference::maintenance"); $con->sendRecv("filter Unique-ID $confmember1"); $con->sendRecv("filter Unique-ID $confmember2"); $con->sendRecv("filter Unique-ID $confmember3"); . . . Which is useless in case you want to check if a user is entering/leaving a particular conference in a single inbound ESL script... What I'm doing instead now is something on these lines: $con->events("plain","all"); $con->sendRecv("filter Unique-ID $CONFNAME"); i//psuedocode if event equals PRESENCE_IN and presence-call-direction equals inbound then { execute API command conference list confname parse uuid from members add a filter update the hashtable for existing confmembers } //once we have the uuid filter added we'll get to know if that user leaves, so the logic for removing the filter is straight forward if event equals CUSTOM and subtype is CONFERENCE::MAINTANANCE { if event action=del-member remove filter for UUID } I don't get ANY event if I'm filtering on conference UUID... I think that needs to be fixed, because its mod_conference which is throwing all those events. Regards. -- I'd love to change the world, but they wont gimme the source code to it

1 0

how to end conference after initiator hangs up (dialout style)
by Jun Sun 13 Feb '13

13 Feb '13

I have set up a conferencing call node using dialout style. That is, I use the following commands to bridge everyone into a conference: conference $myRoom dial sofia/internal/$myNumber@x.x.x.x:5060 $myNumber conference_test"; conference $myRoom dial sofia/internal/$theirNumber1@x.x.x.x:5060 $myNumber conference_test"; conference $myRoom dial sofia/internal/$theirNumber2@x.x.x.x:5060 $myNumber conference_test"; ... Right now things are working fine except for one thing. I like to end the conference (i.e., all legs are disconnected) when the initiator ($myNumber) hangs up. But it is not doing that (understandably so!). How can I achieve that? I searched around and it seems most conf call controls only apply to dial-in style conference calls. Thanks for any pointers! Jun

2 2

skinny (SCCP) dialing is impossible...
by cbarthes35 13 Feb '13

13 Feb '13

Good morning everybody, First, i'm a current asterisk user very impatient to use freeswitch !! I've got a server ready for it, and cisco sccp phones also ready !! My problem is the following: I've installed the last 1.2 stable FS from Git: I've installed & registered a cisco 7940 SIP phone and it is OK. i've managed to register a cisco 7941g SCCP phone (not SIP),* but the dialing is impossible.* Here is the registration: However the dialing is the following: and the phone displays only ??? on the screen, and does not ring at all. Could anybody help me ? Thanks in advance. Chris. -- View this message in context: http://freeswitch-users.2379917.n2.nabble.com/skinny-SCCP-dialing-is-imposs… Sent from the freeswitch-users mailing list archive at Nabble.com.

4 5

Video conference
by Mimiko 12 Feb '13

12 Feb '13

Hi. What is the minimum requirements for a server to handle video conference with 40+ users on BigBlueButton software? Or is there other solutions which integrates with FS? -- Mimiko desu.

4 4

Different music for Hold and Transfer (internal SIP-functions)
by Michael Huber 12 Feb '13

12 Feb '13

I am using some regular sip-phones and the internal sip-functions for HOLD and TRANSFER. I do NOT use the applications “transfer/att_xfer” and “soft_hold”. The phone is a “Siemens OpenStage 60 G”, but this fact should not be important. My problem is now that I can’t have different music for transfer and hold. If I would use the freeswitch-applications “transfer/att_xfer” and “soft_hold” then I would be able to set the variables “hold_music” and “temp_hold_music”. Any idea to achieve this?

2 1

High Availability Cluster Module for FreeSWITCH
by Eliot Gable 12 Feb '13

12 Feb '13

For the past two years, I have been working on and off on a high availability cluster module for FreeSWITCH. If you would like to see HA built into FreeSWITCH directly, instead of dealing with Pacemaker + Corosync or other 3rd party systems, please check out the module, voice your support, provide feedback and suggestions, and consider supporting it. Some advantages over a 3rd party solution like Pacemaker include: - Sub-second failure detection and response (meaning it can start recovering calls less than a second after a failure occurs) - Failure detection is built into FreeSWITCH so it can detect conditions which 3rd party modules cannot detect - One shared configuration file between all nodes (no per-node IP configuration required) - No fixed number of nodes - Graceful migration of calls with a maintenance mode (requires DNS) These are just some of the benefits of building a FreeSWITCH-specific HA system. For additional details about the project, please visit: http://wiki.freeswitch.org/wiki/Mod_ha_cluster If you would like to see this project come to fruition, please consider financially supporting it through Kickstarter: http://www.kickstarter.com/projects/1175121367/high-availability-cluster-mo… Thanks in advance for anyone who contributes, either with just a shout-out, with feedback and/or suggestions, and especially to those who pledge some financial support. -- Eliot Gable

15 29