Please be advised that beginning July 1, 2024 users will no longer be able to send from the Sender Name "Semaphore". This change is intended to prevent misuse of the system.

Please be advised that as of June 1, 2023 only 30 days of message history will be available via API.

Please be advised that Smart is currently blocking all SMS containing links provided by popular link shortening services like bit.ly, t.me etc. Smart has not provided a list of blocked shortening services and does not provide failure DLRs for blocked messages. Please use full domains when sending SMS with links.

Please be advised that Globe has started blocking all links in P2P (Person to Person) SMS messages. Semaphore provides A2P (Application to Person) SMS and our service is not affected. You may continue sending SMS containing clickable links to Globe subscribers using Semaphore.