How to set up Clickatell SMS gateway?

Question

PHP

Hello.

The problem with clickatell, namely in the delivery of SMS.

That is, I try to send SMS in this way: https : //platform.clickatell.com/messages/http/send
... removed from the sandbox) When sending SMS that do not reach the balance is debited.SMS status in the clickatell panel is as follows (both when they arrive and when they do not):

Answer 1

took the price? look at twillio,
the problem is that SMS are routed as cheaper, and the operator, seeing the source, may not be eager to deliver them over the network
with calls less often, but it can also be

Answer 2

Cheap services for sending SMS have always been a channel of not very stable delivery, especially foreign ones that have no orientation towards Russia. Well, you need to understand that for A2P SMS operators, traffic is a business. Under the pretext of fighting spam, they want to see traffic with an alphanumeric signature prepaid by the client. So it's always a lottery.
Well, clickatell could actually get a delivery status from its supplier, which may not necessarily be genuine. Especially if the traffic there actually goes via SS7 from foreign digital numbers. It is necessary to kick support so that they, in turn, kick their partners and achieve a solution.