On Oct 3, 2008, at 4:54 AM, Vito Andolini wrote:
Hi All,
I am familiar with Asterisk and doing some testing for my next
project. I have had some difficulties Asterisk, and now researching
FreeSwitch hoping that it has some out-of-the box answers for my
questions.
Basically I want to implement a Click 2 Call service. Very simple,
user types in his/her number on a website, that number is called,
after it's answered, the company number is called and they are
bridged together.
1) Is there a way to communicate with FreeSwitch programatically and
issue commands such as initiate calls etc ? (ver much like manager
API in Asterisk)
There is an interface that we call the fsapi interface that can be
accessed in many ways, including over a socket method similar to a
combination of AMI and FAGI:
http://wiki.freeswitch.org/wiki/Event_Socket
and xmlrpc:
http://wiki.freeswitch.org/wiki/Freeswitch_XML-RPC
2) If you initiate a call from the software and then once its
answered call a 2nd number. How do you bridge them?
You can do this all in one command:
http://wiki.freeswitch.org/wiki/Mod_commands#originate
3) After the 2 numbers talk and hang up. How does your cdr look
like? Do you have 2 cdr's that correspond to both calls or just 1
after both numbers are bridged together? This is one of the problems
I can't solve with Asterisk as it generates only 1 cdr after the 2
calss are bridged. The reason for this request is, in case of a
Click2Call service, you are charged for both calls by your SIP
provider therefore you need to be able to track both calls for
invoices/payments etc.
We can do either per leg or combined cdr's
http://wiki.freeswitch.org/wiki/Channel_Variables#process_cdr
We have multiple supported formats for cdr:
http://wiki.freeswitch.org/wiki/Mod_xml_cdr
http://wiki.freeswitch.org/wiki/Mod_cdr_csv
4) Is there a way to programatically know if a call has been
asnwered or not and act based upon that. I understand the cdr
contains that information. But what I want is, if the call is not
answered maybe I can play a prerecorded message or take them to the
voicemail or whatnot. So I need a way to do a flow-control based on
if the call has been asnwered or not in the dialplan. Does that
exist? If so can you point me to some resources?
There are several approaches you could take to this. You could do
this all in dialplan if there is not any real forking other than if
the call worked. You can use the variables:
http://wiki.freeswitch.org/wiki/Channel_Variables#hangup_after_bridge
http://wiki.freeswitch.org/wiki/Channel_Variables#continue_on_fail
and just playing the sounds in the dial-plan after a bridge line.
Mike
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