Voice
Current Known Problems
Country-Specific Features and Restrictions
- Local or No-CLI calls
- South Korea: Voice Features and Restrictions
- Indonesia: Voice Features and Restrictions
- Italy: Voice Features and Restrictions
- Argentina: Voice Features and Restrictions
- China: Voice Features and Restrictions
Voice Platform
- Call / Leg Data Retention Policy
- Is Fax supported?
- Which IP addresseses should I allow in order to receive voice traffic from the Vonage API Platform?
- Is WebRTC supported?
- What is Automatic Location Based Routing (ALBR)?
- What characters can be detected via keypad input?
Voice API
- Which order should Voice API callbacks be received?
- What happens if the line is engaged/busy/no answer when receiving a Voice API call on PSTN endpoint?
- Can I call multiple recipients in one API request?
- Is a "completed" event sent to my webhook for every call?
- How can I use Voice API for languages that are not supported?
- Do I have to specify the file type in my audio file?
SIP
- Does Vonage support Digest Authentication for Inbound calls to a SIP endpoint?
- Is SIP REFER supported?
- How can I create a redundant SIP forwarding configuration?
- Special Characters in Forward to SIP Address
- What does xxx SIP call status mean?
- Can I call Emergency Services (e.g. 911, 999, 112) using Nexmo? [E911]
