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There are various SMS gateway or SMS relay programs available but I think even they need to know the carrier to work correctly. Email is easiest. You can always lookup the carrier using an online service. Here's one example:<br />
<a href="https://www.twilio.com/lookup" rel="ugc">https://www.twilio.com/lookup</a><br />
This one doesn't appear to have an API but it will tell you exactly what email address to use:<br />
<a href="http://www.freecarrierlookup.com/" rel="ugc">http://www.freecarrierlookup.com/</a><br />
From there you can just use a simple SMTP relay which is free and easy to setup using Microsoft IIS.
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There are various SMS gateway or SMS relay programs available but I think even they need to know the carrier to work correctly. Email is easiest. You can always lookup the carrier using an online service. Here's one example:
https://www.twilio.com/lookup [https://www.twilio.com/lookup]
This one doesn't appear to have an API but it will tell you exactly what email address to use:
http://www.freecarrierlookup.com/ [http://www.freecarrierlookup.com/]
From there you can just use a simple SMTP relay which is free and easy to setup using Microsoft IIS.

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Hi I want to be able to send a text message to the customer once the parcel has been posted. I have no idea how to go about this. There is over 150 orders per day. Numbers are mixed from landline to mobile. So if mobile send text message. Had a bit a looks like you can use email but have to know the network which we do not know, or I'm I best to get hardware with a SIM card? Plus would like it to show our name in the sms like the big companies do.
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Hi I want to be able to send a text message to the customer once the parcel has been posted. I have no idea how to go about this. There is over 150 orders per day. Numbers are mixed from landline to mobile. So if mobile send text message. Had a bit a looks like you can use email but have to know the network which we do not know, or I'm I best to get hardware with a SIM card? Plus would like it to show our name in the sms like the big companies do.

Vb.net send end text messages

Visual Basic .NET (VB.NET) is an object-oriented programming language implemented on the .NET framework, but also supported on other platforms such as Mono and Silverlight. Microsoft launched VB.NET as the successor to the Visual Basic language. Though it is similar in syntax to  Visual Basic pre-2002, it is not the same technology,

Visual Basic.NET

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.

.NET Programming

A cellular phone (also known as a mobile phone, cell phone, hand phone, or simply a phone) is a telephone that can make and receive telephone calls over a radio link while moving around a wide geographic area by connecting to a cellular network provided by a mobile phone operator, allowing access to the public telephone network. Mobile phones that offer services such as text messaging, email, Internet access, business applications, gaming, photography and more general computing capabilities are referred to as smartphones.