PSTN Connectivity
- Tracking the Status of an Outbound Twilio Voice Call
- Using a Non-Twilio Number as the Caller ID for Outgoing Calls
- How do I dial international numbers with Twilio?
- Setting Up Call Forwarding
- How are Twilio voice and calling product minutes rounded for billing?
- Does Twilio Support Dialing International Phone Numbers?
- How can I ensure that my Twilio application doesn't make calls to certain countries or routes?
- Why am I getting calls from these strange numbers?
- How to Assign a Twilio Phone Number to a Voice Application
- How Fast Can I Place or Receive Phone Calls with Twilio?
- How to Add and Remove a Verified Phone Number or Caller ID with Twilio
- Will Text-to-Speech (TTS) Work for International Calls?
- How to Protect your Twilio project from Fraud with Usage Triggers
- Troubleshooting Errors When Adding an International Caller ID
- Will transcription work for international calls?
- Troubleshooting issues with <Gather>
- What DTMF types do you support?
- Are there any issues with caller IDs from or to countries outside the US?
- What are the possible call statuses, and what do they mean?
- Is it possible to hangup a call after a certain number of rings?
- Will I be charged if Twilio encounters an error while making a call?
- Do I have to buy a phone number to make outgoing calls?
- What Are Geographic Permissions and Why Do They Exist?
- Is there anything that I cannot do with Twilio Voice?
- Why does my call show up as "completed" when my phone never rang?
- The caller IDs of the incoming calls I receive are incorrect. Why is that?
- International Voice Dialing Geographic Permissions and How They Work
- Are there numbers that I cannot call from Twilio?
- What types of phone numbers can I not dial?
- Do US toll-free numbers work internationally?