Have you registered your phone number with them to allow the From to appear as your number?

Settings should probably be

Username xxxx
password xxxx
Number - Normally in the format + country code number

Provider

Other Betamax

Cabbage Web Script

Anything as this setting doesn't matter for your provider.

URL

https://www.voipbusterpro.com/myaccount/sendsms.php

it might be something with the application .... i get the same error (don't use cabbage though) .... but .... using these instructions .... in the browser ... it works

Using HTML SMSlink

You can also send text messages (SMS) without using our software or accessing the website. Use the following link and fill in the desired data:

https://www.12voip.com/myaccount/sen...ame=xxxxxxxxxx ​ &password=xxxxxxxxxx&from=xxxxxxxxxx&to=xxxxxxxxxx &text=xxxxxxxxxx


Explanation of the variables:

* username: your 12VoIP username
* password: your 12VoIP password
* from: your username or your verified phone number. Always use international format for the number starting with +, for instance +491701234567
* to: the number you wish to send the sms to. Always use international format starting with +, for instance +491701234567
* text: the message you want to send

it may be trivial, but I also had a problem at first with webtexter.
I use voipbuster, and there was a problem when sending a SMS.
It turned out that the password I entered was not correct. The password field is set to automatically capitalize the first character, so I didn´t realize that I entered my password incorrectly.

yes, I also saw that the first letter of the password is capitalized.
I used the format https: / / www.12voip.com/myaccount/sen...ame=xxxxxxxxxx & password = xxxxxxxxxx & from = xxxxxxxxxx & to = xxxxxxxxxx & text = xxxxxxxxxx for quick sending, but for multiple numbers simultaneously no longer works properly.

also open an account in smsdiscount confirming my other mobile number and send SMS via betamax software on PC. but also presented webtexto error.
0055 or +55 (Brazil code)
Cabbage with and without
saving or not the messages
voipbusterpro and smsdiscount providers
I tried switching these combinations in configuration, but without success.

i use nonoh ... it doesn,t work with webtexter
we probably need to check the configuration file ... i guess there is something there
for multiple numbers .... you keep adding "&to=xxxxxxxxxxxx" s?

yes, I tried several ways, but only send us to one number or not sent, but discounted shipping... and the password is visible.
The webtexto be perfect, because it has a contacts book and saved messages, in addition to being more secure, right?

why would it be more secure? I believe webtexter effectively does the same thing sending these https requests to the internet.
But i must admit that i do not know what the cabbage web proxy is and why you would need it.

I believe webtexter is safer because in HTML format SMSlink the password is 100% visible ... and believe in the good intentions of the creator of the software.

Important
1 - I'm also having trouble sending to wordpress via MaStory.
2 - I tried to send via wirelless and GPRS access (webtexto and MaStory) without success.
3 - But navigation via browser and software installation is normal.

For those having problems sending can you start webtexter from the xterm try to send a message and then pm me the terminal output?

yes, but what about how to do this?