Everything you need to know about using TwinPhone. Can't find your answer? Contact us.
Add credit from $5 and start calling immediately. No subscription needed.
Billed per minute, rounded up. No connection fees or hidden charges.
Starting at $1.95/month. No contracts, cancel anytime.
TwinPhone encryption is the same standard banks use.
Need custom pricing for 50+ users? Email support@twin-phone.com.
Check that your browser has microphone permission enabled. Try refreshing the page. If on a VPN, try disconnecting it — some VPNs block WebRTC.
Switch to a more stable connection if possible. TwinPhone's adaptive audio handles most issues, but very slow connections (under 100kbps) may cause problems. Close other bandwidth-heavy apps.
Make sure you're using the international format: + followed by country code and number. Drop the leading 0 from local numbers (e.g., Tokyo 03 → +813).
Credits usually appear instantly. If delayed, refresh your dashboard. If still missing after 5 minutes, email support@twin-phone.com with your payment confirmation.
Our support team responds within 24 hours. Enterprise customers get priority 4-hour responses.
Contact Support
Start from just $5. No subscription needed. Open your browser and dial.
登録は無料。カード不要・月額料金なし。14日間返金保証
