2Factor.in avails Faster and More Reliable API for implementing Two Factor Authentication ( Phone Verification ) with just a single API call.
2Factor Offers OTP delivery over VOICE and SMS.

For providing
Faster OTP delivery, Dial2verify manages direct interconnect with Tier 1 Telco providers ( Viz. Vodafone and Airtel ), thereby delivering mission critical OTPs within 3-15 seconds.

For providing
Reliability, Dial2verify manages multi-operator and multi-channel backup for OTP.

Best part is, 2Factor refunds the OTP credit, if it fails to deliver client OTP in first attempt and re-delivers the OTP via alternate channel / operator. Cost for 2nd attempt is bared by 2Factor team, giving best ROIs and Quality of service to our clients.

Problem Solved:
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For every online and offline business, who wishes to build an authentic user-base by verifying customer's phone number.

2Factor service is mainly useful for eCommerce businesses who offer COD services.

USP:
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Most SMS vendors offer aggregated sms routes, which focus more lowering the delivery cost so as to optimize the profits and thereby compromise on the speed and delivery success rates.

2Factor OTP service offers 100% direct interconnect with Tier 1 telcos to deliver OTP in fastest possible way ( Try live at http://2Factor.in )

Best part is, 2Factor refunds the OTP credit, if it fails to deliver client OTP in first attempt and re-delivers the OTP via alternate channel / operator. Cost for 2nd attempt is bared by 2Factor team, giving best ROIs and Quality of service to our clients.