Known Issues

• 404 HTTP Response When Sending an API Request to Change an Active Call

Country-Specific Features and Restrictions

• In-Country, Local, or No-CLI Calls Rejected
• Issue with High Charges for Transferred Calls to UK from Unknown Calling Number
• STIR/SHAKEN Caller ID Authentication and Robocalls
• Australia Voice Features and Restrictions
• South Korea Voice Features and Restrictions
• Indonesia Voice Features and Restrictions

See all 15 articles

Inbound Voice

• How can I handle inbound calls to my voice-enabled virtual number?
• Inbound Voice Features, Restrictions, and Capacity
• Do I have to answer inbound calls?
• Can I forward calls to an IP address rather than a named SIP server address?

Voice API

• What is a Call UUID?
• Are Manual Timeouts Possible Before NCCO Processing?
• Does the billing for a call include the time to detect an answering machine? 
• Is there an Additional Cost to record a Voice Call?
• 5,000 Milliseconds Timeout on Connection HTTP-Outgoing Error in Log
• Does the call recording continue when using Payments over the Phone?

See all 29 articles

Voice Platform

• Why does Caller ID show as potential spam?
• Is SIP Diversion header supported?
• Can I display my name on the receiving party's phone for outbound calls?
• How long are call legs stored?
• Can I send fax over the Vonage Voice API?
• Which IP addresseses should I allow in order to receive voice traffic from the Vonage API Platform?

See all 15 articles

SIP

• No Audio In Programmable SIP IVR
• Does Vonage support Digest Authentication for inbound calls to a SIP endpoint?
• Is SIP REFER supported?
• How to Create a Redundant SIP-Forwarding Configuration
• Special Characters in Forward to SIP Address
• What does xxx SIP call status mean?

See all 8 articles