Greenspek SMS provides excellent bulk SMS services to our users. Bulk SMS involves sending SMS at cheaper rates than regular SMS with the ability to use customized sender ID. This can be used for branding or sending customized messages. We have an easy to use website and mobile application with excellent interface that allows you send bulk SMS easily to clients.

EXTRA FEATURES
+ Option of Customized SIM Hosting
+ Schedule Messages for future dates to send automatically.
+ Auto removal of duplicate numbers.
+ Save numbers to phone book.
+ Save SMS to draft to send later.
+ Full SMS and transaction history.
+ Regular discounts, cool offers and referrals!
+ API Integration for Developers

Our prices are competitive and above all, you are assured of speedy delivery of SMS even to numbers on the Do Not Disturb (DND) list. Our SMS system will tunnel its way through to DND (Do Not Disturb) numbers, ensuring you get high delivery for your SMS.

We have developed an SMS API for developers who are interested in integrating our service into their applications.

You can start your own Bulk SMS business. We can setup your website and mobile app. Read More...
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Greenspek SMS has an SMS short code service. What is short code? SMS shortcode is sending premium charged SMS to short numbers like 55509.

Senders are charged higher than normal SMS. Such SMS can cost as much N30, N50 or N100. This can be used for billing and revenue generation. We can register a shortcode service for you at little startup cost. Our shortcode services are highly automated and responses are sent to clients immediately. Our shortcode service can be integrated into your website or mobile app making it useful for billing services.
See Short Code Pricing

Greenspek SMS has an SMS long code service. Yes you heard right, LONG CODE (also called SIM Hosting). Just like Short Code service which charges users a premium amount, long codes charge the basic SMS rate and allows for the same level of integration as short code. SMS for long codes are sent to regular SIM cards so its also called SIM Hosting.

Basically, long code is short code but to a regular phone number like 09091148637 so users are charged the standard SMS fee (not premium fee). It supports all the features of short codes like keywords, message forwarding via api, customized responses etc. Our longcode services are highly automated and responses are sent to clients immediately. The service can be integrated into your website or mobile app making it useful for marketing and automated responses without billing end users.
See Long Code Pricing

Greenspek SMS allows you send Voice OTP (one-time password by voice call). Use automated calls to send passwords / authentication codes, enhance security, save on cost compared to SMS notifications

BENEFITS OF VOICE OTP
+ High security: The password is read directly and only to the listener through a phone call which prevents copying.
+ Save 30-50% of SMS cost: The average call time for a call carrying OTP code is 15 - 30 seconds which costs between 2.4 or 2.4 SMS Units .
+ Easy to deploy: We have easy to use API to integrate in your project.
+ You can also send voice OTP manually via our account dashboard. Simply login, enter receivers phone number and the OTP code then hit Send.
See Voice OTP Pricing