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Vonage API Support
Voice
Voice
Country-Specific Features and Restrictions
In-Country, Local, or No-CLI Calls Rejected
Taiwan Voice Features and Restrictions
Vietnam Voice Features and Restrictions
Hong Kong Voice Features and Restrictions
Issue with High Charges for Transferred Calls to UK from Unknown Calling Number
STIR/SHAKEN Caller ID Authentication and Robocalls
See all 18 articles
Inbound Voice
Information on receiving voice calls
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
Why is there an extended silence at the beginning of a call and how can it be reduced?
Intermittent WebSocket Disconnections
What Is An NCCO
How Does Jitter Impact Voice Calls
Voice API "Bad Request" Error When Ending Calls Immediately After Creation
What Is MOS Score In Voice Calls?
See all 37 articles
Voice Platform
Why are call progress events not being received on the Event URL defined in the conversation action NCCO?
What types of DTMF are supported?
Why do I see "SyntaxError: Unexpected token p in JSON at position 1" when creating JWT with the Vonage CLI?
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?
See all 17 articles
SIP
Why does my SIP endpoint rejects the call with SIP 403 Forbidden?
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
See all 9 articles