That seems pretty striaght forward On 26/12/2007, at 8:19 PM, Irshad Ahamed wrote:

Actually the set-up is like below.

1. Freeswitch configured as an UA and registered with sipx proxy. 2. Xlite softphone A is also registered with the same sipx proxy. 3. Another Xlite softphone B is also registered to sipx proxy.

Procedures followed: 1. Make a call from Xlite A to Freeswitch UA. Answer it at Freeswitch UA. 2. Now when the call in step 1 has been successfully established, try to make a another call from Xlite B to Freeswitch UA. 3. So now, if Call Waiting is enabled by default there should be call waiting tone indicating that there is a waiting call at Freeswitch UA. But I didn't hear any.

So where should I configure/enable Call Waiting option to generate Call Waiting tone at Freeswitch UA.

Thanks, Irshad.

On Dec 20, 2007 8:33 PM, Brian West <brian.west@mac.com> wrote: Can you clarify this a bit? Your question leaves me confused as to what exactly you're asking. What devices are you using?

/b

On Dec 20, 2007, at 6:28 AM, Irshad Ahamed wrote:

...

Hi,

I couldn't hear any beeps when there is a second incoming call. I was of the notion that Call Waiting is enabled by default. If not, how should I enable it?? Any pointers buddies.....

Thanks in advance...

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On Wed, 2007-12-26 at 08:04 -0600, Brian West wrote:

You really don't. That option isn't in FreeSWITCH someone will have to write it.

/b

On Dec 26, 2007, at 3:19 AM, Irshad Ahamed wrote:

...

So where should I configure/enable Call Waiting option to generate Call Waiting tone at Freeswitch UA.

You could fake it, there are a few ways. Smoke and Mirrors method #1 This is probably the simpliest. An event socket app that would play a tone to the proper leg of a call that the caller is in, the caller could signal they want to switch to the new person and you do all the transfer magic to make that happen. The problem with this is if you want call waiting presumably you have an analog device, which would be like a FXS/FXO card (an ATA for example generally would handle this internally). To get the flash event requires that the signalling layer support that. Some ATAs will pass this as key '16' via rfc2833, since that is defined as 'flash'. You can monitor event socket and see if that is being passed into the FS core (I really dont know offhand) if it is that can be used, if not you may have to use something like * or # or whatever to signal that you want to switch calls. There are event socket script examples in SRC/scripts/contrib/trixter (see the README) some of which do DTMF but I do not recall if that was only in a conf or not, but it gives you example (perl) framework which will monitor for heartbeats, reconnect if it doesnt get one, etc. Smoke and Mirrors method #2 You could have an app, say javascript that a user is directed to if the caller is busy (say that have max-channels set to 1). Then you could execute api commands, which include the aforementioned playback (or possibly rig up something to use teletone, perhaps a media bug and use TGML to express the tone instead, although static files are less cpu intensive, and how often does the tone need to be dynamic? :) For an example of processing the XML responses from things like 'show channels' and hunting down the channel, getting its UUID and all of that goodness, I have an example from last summer on my blog at http://www.0xdecafbad.com/index.php/2007/06/08/get-sample-rate-of-the-curren... granted I havent tested that since I wrote that blog article, so if it doesnt work lemme know and I will fix it up (I know the xml subsystem has changed somewhat and I know that javascript *hates* the <?xml ...?> tag, basically it chokes and dies if it sees one, I dont know if that got added to the 'as xml' part of the apiexec stuff). At any rate, either of these smoke and mirrors methods would give the illusion of call waiting without actually implementing call waiting. -- Trixter http://www.0xdecafbad.com Bret McDanel Belfast +44 28 9099 6461 US +1 516 687 5200 http://www.trxtel.com the phone company that pays you!