How to send/receive text messages online without ads attached to text? [closed]

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Need to send/receive text messages between user and system. Any solutions available online?

Is there any PHP API of Google voice?

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Why not use the email address provided by the phone company?
(small sample list)

• ATT [10-digit phone number]@txt.att.net
• Sprint [10-digit phone number]@messaging.sprintpcs.com
• T-Mobile [10-digit phone number]@tmomail.net
• US Cellular [10-digit phone number]@email.uscc.net
• Verizon [10-digit phone number]@vtext.com

Unless you are sending a text message to a number that you do not know the carrier. Also, if you do use this method, the 1XX limit (I think it varies by carrier) still applies. You message might be truncated or send it multiple parts (again depends on the carrier). As far as I know this is the only free way to send a text message.

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You pay for a propper SMS gateway subscription, thats why there is ads attached to free ones, to cover the cost of the service.