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Vonage API Support

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  • Video API OT_HARDWARE_UNAVAILABLE Error

    Symptom When publishing a stream, you get a similar error as below.  OT_HARDWARE_UNAVAILABLE: The selected voice or video devices are unavailable. Verify that the chosen devices are not in use by a...

  • How to use SIP Interconnect in Playground

    Objective Explore and test SIP Interconnect using Playground. Dial a SIP call to connect in the Video API session.  Applies To Video API SIP Interconnect Procedure Go to Playground.  Create a ne...

  • No Data Detected error in Inspector

    Symptom When using the Inspector to search a Session ID, it returns an error No Data Detected as shown in the screenshot below. Applies To Video API Inspector Resolution If the Session is very ...

  • Unable to Initiate SIP Call from Playground

    Symptom When trying to make a SIP call in Playground, you get an error "Failed to dial endpoint".  Applies To SIP Interconnect Playground Video API Resolution Check the required SIP URI field an...

  • How to Send DTMF in a SIP Call using Playground

    Objective Using SIP Interconnect in Playground, send a DTMF (Dual-Tone Multi-Frequency) digit to a SIP endpoint. Applies To Video API SIP Interconnect Procedure Dial a SIP Endpoint. For details,...

  • UDP Port Range on Vonage Video

    Question Can we limit the UDP port range to only a specific range, for example 30000-39999 only? Applies To Vonage Video UDP Port Range Network Connectivity Requirements Answer Vonage recommends ...

  • How to Determine if AES-256 Bit Encryption is Used in a Session

    Objective Determining if AES-256 Bit Encryption is used in a session. Applies To Video API  Encryption AES-256 Procedure To validate AES-256 is used in the session, check with webrtc internals l...