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[Freeswitch-users] LUA: Independent control of each call leg.


 
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msc at freeswitch.org
Guest
PostPosted: Fri Jul 31, 2009 1:59 pm    Post subject: [Freeswitch-users] LUA: Independent control of each call leg Reply with quote
The level of control you need really isn't served by doing scripting from the dialplan. I highly recommend using ESL and the event socket. It will mean a bit of a paradigm shift in your coding, but with that shift comes a lot of power and control over what you can do with the calls - really limited only by your imagination.

-MC

On Fri, Jul 31, 2009 at 8:01 AM, peely <freeswitch@peely.com (freeswitch@peely.com)> wrote:
Quote:

Hi,

I'm trying to develop an application using lua and need to control the
inbound and outbound legs independently, even when they are switched
together.

I can initiate the outbound session but I can't seem to bridge without
losing control of the script.

For example, if I use:


       local api = freeswitch.API();
       inSession = session;
       inSession:answer();
       inSession:setAutoHangup(false);


       egSession = freeswitch.Session("sofia/default/mynum@mydomain.com (mynum@mydomain.com)");
       egSession:setAutoHangup(false);

       if egSession:ready() then
               api:execute("uuid_bridge",inSession.uuid .. " " .. egSession.uuid);
       end

       while egSession:ready() do
               inSession:sleep(1000);
       end

Then I lose the script entirely, and if I use:

       inSession:execute("bridge", "sofia/default/mynum@mydomain.com (mynum@mydomain.com)")

Then I lose the ability to control the call whilst the outbound is in
progress.

Does anyone know a way I can allow ingress to egress calling whilst still
maintaining script control mid-call? I also need to ingress to hear
provisional speech during outbound connect. I've looked at conferencing but
there seems to be quite a lot of automated messaging.



Thanks,


Neil.

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freeswitch at peely.com
Guest
PostPosted: Sat Aug 01, 2009 5:48 am    Post subject: [Freeswitch-users] LUA: Independent control of each call leg Reply with quote
Hi,

Thanks for your response. It's a real shame I can't get the async behavior I
want from Freeswitch/LUA as this is exactly the kind of abstraction layer I
hoped for in a SIP Application Server.

Most of the apps I want to develop would be served using the LUA environment
as-is but if a few scenarios I want to be able to perform a small amount of
activity whilst both legs are in a connected state, a prime example is a
b-leg "whisper" where you are still playing "ringing" to the a-party while
the b-party answers and hears a message just before connection to the
a-party.

Regards,


Neil.



mercutioviz wrote:
Quote:

The level of control you need really isn't served by doing scripting from
the dialplan. I highly recommend using ESL and the event socket. It will
mean a bit of a paradigm shift in your coding, but with that shift comes a
lot of power and control over what you can do with the calls - really
limited only by your imagination.

-MC

On Fri, Jul 31, 2009 at 8:01 AM, peely <freeswitch@peely.com> wrote:

Quote:

Hi,

I'm trying to develop an application using lua and need to control the
inbound and outbound legs independently, even when they are switched
together.

I can initiate the outbound session but I can't seem to bridge without
losing control of the script.

Does anyone know a way I can allow ingress to egress calling whilst still
maintaining script control mid-call? I also need to ingress to hear
provisional speech during outbound connect. I've looked at conferencing
but
there seems to be quite a lot of automated messaging.



Thanks,


Neil.





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brian at freeswitch.org
Guest
PostPosted: Sat Aug 01, 2009 11:13 am    Post subject: [Freeswitch-users] LUA: Independent control of each call leg Reply with quote
You can do all this via ESL-Lua cd libs/esl; make luamod

/b

On Aug 1, 2009, at 5:36 AM, peely wrote:

Quote:

Hi,

Thanks for your response. It's a real shame I can't get the async
behavior I
want from Freeswitch/LUA as this is exactly the kind of abstraction
layer I
hoped for in a SIP Application Server.

Most of the apps I want to develop would be served using the LUA
environment
as-is but if a few scenarios I want to be able to perform a small
amount of
activity whilst both legs are in a connected state, a prime example
is a
b-leg "whisper" where you are still playing "ringing" to the a-party
while
the b-party answers and hears a message just before connection to the
a-party.

Regards,


Neil.


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pjintheusa at gmail.com
Guest
PostPosted: Sat Aug 01, 2009 2:46 pm    Post subject: [Freeswitch-users] LUA: Independent control of each call leg Reply with quote
Quote:
Quote:
a prime example is a b-leg "whisper" where you are still playing "ringing" to the a-party while
the b-party answers and hears a message just before connection to the
a-party.

You should be able to do this particular function using group_confirm. See this page in the wiki.

http://wiki.freeswitch.org/wiki/Freeswitch_IVR_Originate#exec_in_answer_confirm

In your case the test.js would contain the whisper. Note that you can send args to this script.


On Fri, Jul 31, 2009 at 11:01 AM, peely <freeswitch@peely.com (freeswitch@peely.com)> wrote:
Quote:

Hi,

I'm trying to develop an application using lua and need to control the
inbound and outbound legs independently, even when they are switched
together.

I can initiate the outbound session but I can't seem to bridge without
losing control of the script.

For example, if I use:


       local api = freeswitch.API();
       inSession = session;
       inSession:answer();
       inSession:setAutoHangup(false);


       egSession = freeswitch.Session("sofia/default/mynum@mydomain.com (mynum@mydomain.com)");
       egSession:setAutoHangup(false);

       if egSession:ready() then
               api:execute("uuid_bridge",inSession.uuid .. " " .. egSession.uuid);
       end

       while egSession:ready() do
               inSession:sleep(1000);
       end

Then I lose the script entirely, and if I use:

       inSession:execute("bridge", "sofia/default/mynum@mydomain.com (mynum@mydomain.com)")

Then I lose the ability to control the call whilst the outbound is in
progress.

Does anyone know a way I can allow ingress to egress calling whilst still
maintaining script control mid-call? I also need to ingress to hear
provisional speech during outbound connect. I've looked at conferencing but
there seems to be quite a lot of automated messaging.



Thanks,


Neil.

--
View this message in context: http://www.nabble.com/LUA%3A-Independent-control-of-each-call-leg.-tp24744087p24744087.html
Sent from the Freeswitch-users mailing list archive at Nabble.com.


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