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Constant Contact® Text Service | Text Marketing Blast Service
https://www.constantcontact.com
Sponsored Reach, Engage And Keep More Customers With Email, Social And Text …Easy Signups · Effortless Messaging · Detailed Analytics · 98% Open Rates
ClickSend Mass SMS Gateway | The SMS API for Developers
https://try.clicksend.com › apiSponsored Send customisable, contextual text messages from your own system powered by ClickSend SMS. Build powerful apps using the fastest and most reliable cloud communication APIs.24/7 Customer Support · Fast Delivery Time · Direct Routes · Global Coverage
Service catalog: SMS Gateway, MMS Gateway, Rich Messaging, Text-to-Speech Voice4/5 (3,495 reviews)