B · Infrastructure · Email & Messaging Infrastructure
Voice & VoIP Infrastructure
Voice infrastructure connects your phone system, contact center or app to the telephone network: programmable voice APIs, SIP trunks for an existing PBX, and hosted business VoIP. Compare country coverage for inbound and outbound calls, supported number types, codec and quality commitments, call recording and the caller-ID and consent rules the provider enforces.
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Buyer guide
- Confirm coverage for both inbound and outbound calls in the countries you need.
- Check caller-ID rules and consent requirements for outbound calling in each country.
- Ask about number porting if you are moving an existing line.
What to compare
- 01Voice API, SIP trunk or hosted VoIP
- 02Inbound and outbound country coverage
- 03Number types and porting
- 04Call quality and codecs
- 05Recording and transcription
- 06Caller-ID and consent rules
Use cases
- Support and sales phone lines
- Call tracking for campaigns
- Voice features inside an app
FAQ
What is the difference between a SIP trunk and hosted VoIP?
A SIP trunk connects a phone system you already run to the phone network; hosted VoIP gives you the phone system as a service. Voice APIs let your own software place and receive calls.
Are outbound calling campaigns allowed?
Only where they comply with consent and caller-ID rules in the destination country. Providers on TrafficNodes must enforce their own acceptable-use policy.