how can I get details of a second leg call with twilio? - ruby

Question

I want to get the call details, from a second leg call, and insert them into my database.
Here is the scenario: an inbound call to a toll-free number is routed to second phone. So there are 2 legs, 1) the inbound call to the toll-free number and then 2) connection to the second number.
The code for getting the call details for the FIRST leg is:
get '/hangup' do
user_key = numbers.where(:number => params["To"]).join(:credentials, :user_id => :user_id).get(:user_key)
user_token = numbers.where(:number => params["To"]).join(:credentials, :user_id => :user_id).get(:user_token)
call_sid = params["CallSid"]
call_parent_sid = ["ParentCallSid"]
#sub_account_client = Twilio::REST::Client.new(user_key, user_token)
#subaccount = #sub_account_client.account
call = #subaccount.calls.get(call_sid)
call_sid = call.sid,
call_parent_sid = call.parent_call_sid,
phone_number_id = call.phone_number_sid,
call_from = call.from,
call_to = call.to,
call_start = call.start_time,
call_end = call.end_time,
call_duration = call.duration,
charged_duration = ((call_duration.to_f)/60).ceil
call_price = call.price
call_charged_price = (charged_duration * 0.07)
call_logs.insert(:call_sid => call_sid, :call_parent_sid => call_parent_sid, :phone_number_id => phone_number_id, :call_from => call_from, :call_to => call_to, :call_start => call_start, :call_end => call_end, :call_duration => call_duration, :charged_duration => charged_duration, :call_price => call_price, :call_charged_price => call_charged_price)
end
This works after hangup and the status_callback_url is '/hangup'. But how can I get the same details for the second leg of the call. I have tried as follows:
get '/receive' do
destination_number = numbers.where(:number => params["To"]).join(:users, :id => :user_id).get(:primary_number)
user_id = numbers.where(:number => params["To"]).join(:users, :id => :user_id).get(:id)
greeting_url = voicemail.where(:user_id => user_id).get(:voicemail_play_url)
resp = Twilio::TwiML::Response.new do |r|
r.Dial destination_number, :status_callback => '/hangup_second_leg', :status_callback_method => 'GET'
etc..
This effectively attempts to create a second status_callback_url which, needless to say, did not work.
So, how can I get the details of the second (or even third) leg of a call and bung it into my DB?
Twilio evangelist .....
Many thanks in advance.

Answer 1

Twilio developer evangelist at your service!
I just ran a quick test and the parameters you get back from the hangup callback should include a "CallSid" and a "DialedCallSid" which are the two legs of your call. You can get hold of the data via normal calls to the REST api:
get '/hangup' do
call_sid = params["CallSid"]
dialed_call_sid = params["DialedCallSid"]
#sub_account_client = Twilio::REST::Client.new(user_key, user_token)
#subaccount = #sub_account_client.account
inbound = #subaccount.calls.get(call_sid)
outbound = #subaccount.calls.get(dialed_call_sid)
# Update calls in database
end
Alternatively, the inbound call is the parent of all the other calls that take part within the context of the call. So you can get the details on all the child calls with the following api calls:
#subaccount.calls.list parent_call_sid: params["CallSid"]
# => [<Twilio::REST::Call>, ...]
Also, if you are getting a ParentCallSid parameter in your hangup, then you can use the above code to look up the parent call and child calls from that too.
Hope this helps, let me know if there's anything else I can help with.