Twilio conference sid not getting in params using rails 4 - ruby-on-rails

Question

using twilio am making conference room. I successfully created the conference between two users. But i can't able to get conference sid from twilio. Can any one please help me in that.
twiml1 = Twilio::TwiML::Response.new do |r|
r.Say "You have joined the conference."
r.Dial do |d|
d.Conference "#{conference_title}",
waitUrl: " ",
muted: "false",
startConferenceOnEnter: "true",
endConferenceOnExit: "true",
maxParticipants: 5,
end
end
This is how am connecting connecting conference in between two user.

Answer 1

Twilio developer evangelist here.
You don't get the parameters for the Conference SID at this point because you could well be creating the conference with the return of this TwiML. Instead, there are a couple of other ways to get the SID.
Conference events
With the statusCallback attribute on the <Conference> element you can set a URL to receive various events as webhooks regarding the conference (pick those events with the statusCallbackEvent attribute). You could listen for the start event and you will receive the Conference SID as a parameter in the webhook request.
Checking the REST API
Otherwise, you can make an API call to the REST API Conference resource.
You can search for your conference by the name you give it. For example, you can search for the conference called "MyRoom" using the following Ruby (if you have the twilio-ruby gem installed):
#client = Twilio::REST::Client.new YOUR_ACCOUNT_SID, YOUR_AUTH_TOKEN
# Loop over conferences and print out the SID for each one
#client.account.conferences.list({
:status => "in-progress",
:friendly_name => "MyRoom"}).each do |conference|
puts conference.sid
end
Let me know if that helps at all.
[edit]
An example of the statusCallback in Rails.
First I'm going to adjust the TwiML you used initially:
twiml1 = Twilio::TwiML::Response.new do |r|
r.Say "You have joined the conference."
r.Dial do |d|
d.Conference "#{conference_title}",
waitUrl: " ",
muted: "false",
startConferenceOnEnter: "true",
endConferenceOnExit: "true",
maxParticipants: 5,
statusCallback: "/conferences/callback",
statusCallbackEvent: "start"
end
end
I've added the statusCallback attribute with a path to an action in your Rails application (you can use whatever path you want, I just made this up for now). I also added the statusCallbackEvent attribute with the value "start". There are other events available, but to get the SID, the start event will do.
Now we need an action to receive that callback.
class ConferencesController < ApplicationController
def callback
# Do something with the conference SID.
Rails.logger.info(params["ConferenceSid"])
render :nothing => true
end
end
You'll need to point a POST route at that controller action too, but I'll leave that up to you to sort out.