Sending message to Philippines is simple as pie.
But in US numbers, I'll have to go through verification that I do not know how.
I started 2F Authentication but seems that I dont know how to do next.
My question:
How to add send text to US numbers in Nexmo?
You can use Nexmo's SMS API which allows you to send a text in over 200 countries with a simple HTTP call.
You can sign up for a virtual number which allows you to send SMS messages & receive incoming message as well.
For 2FA, you can use the Verify API to authenticate users to a specific device.
This method is more secure than using an SMS API and randomly generating numbers yourself. The pin will then entered by the end user & checked by the Verify API.
It takes a few lines of code to use either of these APIs. Below is a block of code in PHP which allows you to send a text using the SMS API.
<?php
$url = 'https://rest.nexmo.com/sms/json?' . http_build_query([
'api_key' => API_KEY,
'api_secret' => API_SECRET,
'to' => YOUR_NUMBER,
'from' => NEXMO_NUMBER,
'text' => 'Hello from Nexmo'
]);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
Here is the documentation for Nexmo's SMS API for reference.
Here is the documentation for Nexmo's Verify API if you were looking for a simple 2FA solution.
For US, you have to create one short code from you nexmo account and you have to specify your message template and with dynamic changeable max 2 variables and some basic contact information.
You can follow steps:
Login into your nexmo account-> Products -> Short codes -> Add Shared Short Code -> Alert or Two factor authentication -> fill out form with require data -> wait for approval.
Alert: to just send one way alert message to users.
Two facetor authentication: to verify user.
you can review following links for more detail
https://docs.nexmo.com/index.php/US-shared-short-code-api
https://help.nexmo.com/hc/en-us/articles/204017023-USA-Direct-route-Features-Restrictions
you can same links for other countries also.
EDIT:
In addition to this request, They will ask you few questions about how you are gonna use this service? , How user will get SMSs and how many times? etc.
After you providing such information they will approve your request.