Bandwidth Voice API vs Telnyx Voice API

Bandwidth Voice API8.9Visit Telnyx Voice API8.6Visit

Higher score Bandwidth Voice API #4 in Communication Platform as a Service (cPaaS) Platforms 8.9/10 Pricing on request ✓ 1 of 6 features Visit Bandwidth

vs

Telnyx Voice API #7 in Communication Platform as a Service (cPaaS) Platforms 8.6/10 Paid ✓ 1 of 6 features Visit Telnyx

• Bandwidth Voice API fits best

  Developers building programmable PSTN voice services

• Telnyx Voice API fits best

  Teams building voice apps with real-time audio control

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Side by side

Feature	Bandwidth Voice API 8.9/10 Visit ↗	Telnyx Voice API 8.6/10 Visit ↗
At a glance
Editor score	8.9	8.6
Ranking	#4 in Communication Platform as a Service (cPaaS) Platforms	#7 in Communication Platform as a Service (cPaaS) Platforms
Best for	Developers building programmable PSTN voice services	Teams building voice apps with real-time audio control
Pricing model	Paid	Paid
Starting price	Pricing on request	$500/mo
Free plan	—	—
Free trial	—	—
Deployment	Cloud	Cloud, Browser extension, Mobile
Support	Docs, Email	Docs · 24/7
Compliance	SOC 2, GDPR	SOC 2, GDPR, HIPAA, PCI DSS
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Bandwidth Voice API 1/6 · Telnyx Voice API 1/6
SMS messaging	Not checked yet	Not checked yet
Voice calling	Not checked yet	Not checked yet
Video communications	Not checked yet	Not checked yet
WhatsApp channel	Not checked yet	Not checked yet
Phone numbers	✓	✓
No-code builder	Not checked yet	Not checked yet
Specs
Supported countries	Not checked yet	Not checked yet
Our review
Pros	Supports inbound and outbound PSTN calling with Bandwidth phone numbers Combines call control, recording, SIP connectivity and call-event webhooks SDK resources cover C#, Java, Node.js, PHP, Python and Ruby	Controls inbound and outbound PSTN calls, including routing and ending calls Streams two-way audio over WebSockets and supports call recording Offers WebRTC calling plus speech and AI call-flow tools
Cons	Pricing is contact-sales only rather than a published fixed plan No free plan is available The listed platform is API-only, so integration requires development work	SIP trunking is billed separately from the $0.002-per-minute Voice API fee Committed starts at $500 per month; Enterprise starts at $5,000 per month The listed SDK language is JavaScript
Our verdict	Bandwidth Voice API gives software teams and enterprises API access to telephone calling for business applications. It supports inbound calls on Bandwidth phone numbers, outbound PSTN calling, phone-number provisioning and management, and… Read the review →	Telnyx Voice API gives developers REST APIs and call-control tools for applications connected to the public telephone network. It suits teams adding calling, contact-center functions or voice-agent capabilities to their own products,… Read the review →

Strengths and trade-offs

• Bandwidth Voice API — where it wins

  • Supports inbound and outbound PSTN calling with Bandwidth phone numbers
  • Combines call control, recording, SIP connectivity and call-event webhooks
  • SDK resources cover C#, Java, Node.js, PHP, Python and Ruby

  Where it doesn't

  • Pricing is contact-sales only rather than a published fixed plan
  • No free plan is available
  • The listed platform is API-only, so integration requires development work

• Telnyx Voice API — where it wins

  • Controls inbound and outbound PSTN calls, including routing and ending calls
  • Streams two-way audio over WebSockets and supports call recording
  • Offers WebRTC calling plus speech and AI call-flow tools

  Where it doesn't

  • SIP trunking is billed separately from the $0.002-per-minute Voice API fee
  • Committed starts at $500 per month; Enterprise starts at $5,000 per month
  • The listed SDK language is JavaScript

• Bandwidth Voice API8.9/10 · Pricing on request

  A focused PSTN voice API for teams that need call control and number management.

  Visit BandwidthFull verdict →
• Telnyx Voice API8.6/10 · Paid

  A voice API for teams that need PSTN calling, streaming audio and call-flow tools.

  Visit TelnyxFull verdict →