openbnet vs Vonage: Video API Comparison

Vonage Video API (formerly TokBox OpenTok) is a mature WebRTC video platform. openbnet is a newer, WebSocket-native alternative. Here is how they compare.

TL;DR

Vonage Video API (formerly TokBox) is one of the oldest WebRTC platforms, with a managed routing approach (routed or relayed) and mature client SDKs. openbnet is newer with a mesh-topology approach and an integrated chat/streaming/moderation story.

Choose Vonage for mature archiving, SIP/PSTN connectivity, and broadcast-grade streaming. Choose openbnet for an integrated real-time stack with simpler pricing.

Architecture

Vonage uses a managed media router (their "routed" mode) that acts like an SFU, plus a "relayed" mode for P2P. This gives flexibility: routed mode for larger groups and archiving, relayed for low-latency 1:1. They also support SIP interconnect for PSTN dial-in.

openbnet uses WebRTC mesh across the board. This is optimal for small groups but caps at ~10 participants. For streaming, openbnet uses a bridge-tunnel architecture that allows multiple hosts and per-bridge audio control.

• Vonage: managed router (SFU-like) + relayed (P2P) hybrid
• openbnet: WebRTC mesh + bridge-tunnel streaming
• Vonage: SIP/PSTN interconnect, archiving, broadcast composition
• openbnet: chat + streaming + signaling + moderation unified
• Vonage: per-participant-minute billing
• openbnet: call-minute billing (bundled in plan)

When Vonage is the better choice

• You need server-side archiving and compositing
• SIP/PSTN dial-in is required
• Large group calls (20+ participants) with routed mode
• Broadcast-quality live streaming to CDN/RTMP

When openbnet is the better choice

• Small-group interactive video calls
• Multi-host live streaming with viewer interaction
• You want chat + video + AI moderation unified
• Simpler pricing without per-participant-minute math

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