01The problem

Customers miss the OTP and abandon signup. One slow SMS costs you a new user before they ever see your product.

02Channel recommendation

Fastest first attempt, works on every handset, no app install needed.

A second attempt when SMS delivery is uncertain, with read receipts.

The channel of last resort when text delivery fails outright.

Recommended

Runs SMS, then WhatsApp, then a voice call in one API call, until the code lands.

03Message flow

Trigger

User taps "send code" on signup or login

Primary channel

OTP sent by SMS

Fallback

WhatsApp after 12 seconds, then a voice call after 15 more

Outcome

User enters the code and is verified, on whichever channel it reached them

04Sample templates

{{otp}} is your MsgBridge login code. Valid for 10 minutes. Do not share this code with anyone.

Signup verification

Welcome to {{brand}}. Your verification code is {{otp}}. It expires in 10 minutes.

Password reset

Use {{otp}} to reset your {{brand}} password. If you did not request this, ignore this message.

05Setup steps

MsgBridge

Share your signup and login flow so the API call sits in the right place

You

Integrate the Verify API and configure channel order and timeouts

You

Test the full cascade end to end before going live

MsgBridge

06Related

Ready to solve this with OTP & User Verification?

Talk to us about your volumes and we'll recommend the right mix.