The following plugin enables you to provide your users with paid access to the content…

smscoin

To the website page or blog post you need to add tags as follows [smscoin_vip] hidden content [/smscoin_vip]. To access the content hidden between these tags user have to send an SMS to a short code first, then user is moved to VIP group. VIP user will be able to access the content you hide between the following tags [smscoin_vip] hidden content [/smscoin_vip].
You choose your payment page by specifying in the text of the article or blog post the following tag [SMSCOINPAY], and instead of the tag user will see the instructions to send an SMS. The moment time limit in VIP group you set yourself in plugin settings expires, user no longer can access the hidden content. User receives an e-mail written by you in plugin settings.
To use the following you must register first on smscoin.net website and to connect sms:key service as well.
sms:key service registration and setup process are absolutely free.
Localization:
<pre><code>Русский, English </code></pre>
For using this module you have to be registered at sms billing site:
<pre><code> English: http://smscoin.net/account/register/ Русский: http://smscoin.com/account/register/ </code></pre>
Plugin page:
<pre><code> English: http://smscoin.net/software/engine/WordPress/ Русский: http://smscoin.com/software/engine/WordPress/ </code></pre>

Alternatives to SmsCoin – VIP group, based on sms:key

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