I'm currently looking at a basic example of create call https://www.twilio.com/docs/voice/api/call#create-a-call-resource.
The TWIML fetched in the url parameter uses the <Gather> verb to call a number via the action attribute then <Say> something on a loop. Once the DTMF input is detected it dials a second number:
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Gather input="dtmf" action="/dial/john" method="POST">
<Say loop="0">Press a key to connect to John</Say>
</Gather>
</Response>
response at /dial/john:
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Dial>415-123-4567</Dial>
<Hangup/>
</Response>
Now, my question is would it be possible to use the API to do the exact same and reduce costs? The cost per minute for each call is GBP0.0175 whereas I believe it could be lower using the API / SIP / VOIP?
TIA
Using you can tell Twilio you want to connect to a PSTN phone <Number>, a <Sip> endpoint, a <Client> ID or even a Twilio Programmable Wireless <Sim> card.
Depending on which if these you use they will have different costs.
Hope that helps.
Related
Trying to receive recordings of calls. I'm self hosting this twiml code.
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Dial timeout="40"
recordingStatusCallbackEvent="in-progress,completed"
recordingStatusCallback="http://server.com/recording/">
<Number
url="http://server.com/whisper/"
statusCallbackEvent="completed"
statusCallback="http://server.com/status/">
+12142142144
</Number>
</Dial>
</Response>
Everything works as expected except the recording url is never called. The call forwards, the whisper is spoken, the status url is called, but not the recording url.
Twilio Developer Evangelist here. 👋
It looks like you're missing the record attribute. (https://www.twilio.com/docs/voice/twiml/dial#record) If it's not set it's defaulting to do-not-record.
<Response>
<Dial record="record-from-ringing-dual"
recordingStatusCallback="www.myexample.com">
<Number>+15558675310</Number>
</Dial>
</Response>
Can you add it and give it a try? Happy to help if that's not the issue. :)
Is there a way to implement the following in TwiML? The goal is to produce a reasonably-sounding voicemail on Twilio.
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Pause length="15"/>
<Say voice ="woman">
You have reached the voice mail of ##The_Phone_Number_One_has_Called##.
Please leave a message at the beep.
</Say>
<Record
transcribe="true"
/>
</Response>
I have a bunch of Twilio numbers and would like to have the string "##The_Phone_Number_One_has_Called##" replaced by the number that the caller is calling. Please advice if I should deploy a dedicated TwiML for each phone number.
Using Templates with a TwiML Bin, and Polly voices, try something like this for the bin:
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Pause length="15"/>
<Say voice="Polly.Joanna">
You have reached the voice mail of
<say-as interpret-as="telephone">{{To}}</say-as>.
Please leave a message at the beep.
</Say>
<Record
transcribe="true"
/>
</Response>
How to use templates with TwiML Bins
(https://support.twilio.com/hc/en-us/articles/230878368-How-to-use-templates-with-TwiML-Bins)
Amazon Polly
(https://www.twilio.com/docs/voice/twiml/say/text-speech#amazon-polly)
You could do it on your server's code. Just replace the "##The_Phone_Number_One_has_Called##" with the phone that the user called.
Remember that you get the number that the user dialed on the post param "To" on each of Twilio's requests to your server, so from your server you could return:
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Pause length="15"/>
<Say voice ="woman">
You have reached the voice mail of $POST["To"].
Please leave a message at the beep.
</Say>
<Record
transcribe="true"
/>
</Response>
And your server will render a different phone each time, and Twilio's will say it. Just a heads up, the $POST["To"] has the format "+1XXXXXXXXXX", so you might want to remove the +1.
I am sorry. I am a new to this so forgive me in advance. I'm searching for an answer and I was not able to understand when searching previous inquiries.
I am starting a TwiML Bin and so far my code is
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Say>This call is being recorded for quality assurance purposes</Say> .
<Dial record="true">+1 858-220-8650</Dial>
</Response>
When I receive the forwarded phone call, and I answer it, I want a message to say "phone call from website xyz" and then connect the call.
Is this possible from just within the TwiML Bin? Or do I have to utilize some external code?
You can do it with TwiML Bins, you will need to use the URL attribute on the Number noun to "chain" them together.
First create your whisper bin:
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Say>phone call from website xyz</Say>
</Response>
Then use this with the URL attribute on your existing bin, like this:
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Say>This call is being recorded for quality assurance purposes</Say>
<Dial record="true">
<Number url="https://handler.twilio.com/twiml/xxxxxxxxxxxxxxxxxxxxxxx">
18582208650
</Number>
</Dial>
</Response>
When the call is answered it will say the message from the whisper bin immediately before connecting the calls. Hope this helps! :)
I'm really struggling to figure out what is wrong with my script. I'm trying to setup a conference call that can be muted when the user presses *6. I have the logic working on the server, but no matter what I do in the Twiml, the hangupOnStar doesn't work.
This is the initial twiml when the user has entered the correct pin to the conference;
<?xml version="1.0" encoding="UTF-8" ?>
<Response>
<Dial hangupOnStar="true">
<Conference muted="false">Conf Room 4</Conference>
</Dial>
<Gather action="/twilio/mute" numDigits="1" />
</Response>
I have connected to the conference with 2 phones, so the conference works. But if i press * on either phone, nothing happens, both phones are still in the conference. I tried removing the gather verb and added an action to another script. But pressing star does nothing, so I'm unable to even get to the Gather verb or disconnect myself from the call.
Any ideas?
Thanks
Is there a way with twilio to stop the welcoming message (Say) once the caller input digits and then forward it to the next IVR tree without waiting the whole message ?
Thanks
You can use numDigits attribute in GATHER with a integer value.For example, one might set 'numDigits' to '5' and ask the caller to enter a 5 digit zip code. When the caller enters the fifth digit of '94117', Twilio will immediately submit the data to the 'action' URL.
Check detail on Twilio Docs.
<?xml version="1.0" encoding="UTF-8"?>
<Response>
<Gather timeout="10" numDigits="5">
<Say>Please enter your pin number and then press star.</Say>
</Gather>
</Response>
Actually I had the Gather after the Say. Instead I should've wraped the Gather around the say:
<Response>
<Say voice="alice" language="it-IT">...</Say>
<Gather method="POST" numDigits="1" action="/twilio/ServletHandleUserInput" finishOnKey="0">
</Gather>
</Response>
So I amended it alike :
<Response>
<Gather method="POST" numDigits="1" action="/twilio/ServletHandleUserInput" finishOnKey="0">
<Say voice="alice" language="it-IT">...</Say>
</Gather></Response>
Thanks Rubai