Ok, thanks to support here, on IRC and from Anthony, I have gotten this working about 80%. None of my current issues are due to FreeSwitch, so I thought I'd post what I have completed so far and what I had learned along the way. Here is a link to the PHP abstraction layer that we're working on: http://phoneflyers.com/phpEvents.zip It's basically similar to the Client.pm Perl client but in PHP. (I can defend the reason to do this in PHP another time -- it's the right choice for us right now.) It is horribly ugly at the moment, but the Event Socket is working as advertised. I get the appropriate events (DTMF is what I've been caring about), and I can invoke raw commands and sendMsg style call control messages. The base server class forks a child for each connection, and has enough of a framework to notify your subclass when some of the interesting events happen. There is a readme.txt in the zip file with a little more info. To summarize what I've learned along the way (thanks to Anthony, Vile, etc) is the following: 1) In outbound mode, you need to setup your calls to take 'async' and not 'full' in your dialplan like so. (Pretty much any other combination does not work as you want in this case.) <extension name="socketTest"> <condition field="destination_number" expression="^444$"> <action application="socket" data="127.0.0.1:9090 async"/> </condition> </extension> 2) To setup your events in outbound mode, use the raw command 'myevents' with no parameters. I haven't found this documented, but if you also add an 'events plain ALL' or the like, you will get events from all calls, not just yours. 3) sendMsg() calls are used to make requests on the current call without needing a UUID. I am just deriving this from what I've seen -- feel free to correct me. API (and bgapi) calls are much more useful in inbound (full) mode. 4) Socket timeouts in PHP do not work as expected when reading until newlines. This is just a gripe since I haven't figured this out yet ;-) Any help would be appreciated since I can't do DTMF timouts until I figure it out. This is by no means done, but I've gotten several emails that people are working on similar efforts, so I thought I'd share. Next up, I want to get some higher level calls (similar to the Session calls in Javascript) that run on top of this low-level interface. Thanks for everyone's help, Bill Bill Binko wrote:
Ok, I have gotten the DTMF to work, and am much happier now. I have a nice framework forming that will make it easy for us to develop PHP-based IVR apps, monitors, etc.
Live is looking better.
However, I have some questions about the Event Socket interface that I would love some help on.
First, it seems that when in 'async full' mode, you get ALL the events for any connections, not just the one you were invoked on (in outbound mode). If that's true, how do I discern which events are for my call? I suppose I could use the UUID in the Event, but that seems fairly wasteful - shouldn't I be able to just register for "my" events (that's why I'm calling "myevents" ;-)
Second, what is the difference between the three ways to invoke functionality? There's the "basic" commands like "myevents", "event plain ALL", "log DEBUG". Then there are the api commands that are invoked like "api uuid_broadcast <UUID> <path>", and then there are the sendMsg command like "sendmsg\ncall-command: execute\nexecute-app-name: answer\nexecute-app-arg: \n\n"
Each of these seem to invoke functionality in the current call (or the call with the given UUID), and there seems to be overlap (i.e. there is an 'answer' command in the API), but they all have different syntaxes, Content-Types and corresponding result messages.
This isn't a complaint, I'm just trying to sort out when to use each. I'll be happy to update the wiki with the clarification.
Finally, assuming this becomes reasonably usable, how do I add it to the contributed scripts?
Thanks, Bill
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