This Article will provide information on Configuring SMS Gateways on GateManager
This guide explains different type of external SMS gateways that can be configured for a GateManager
Correction for Section 2 of linked guide:
For customers with own GateManager
For own GateManagers enabling of SMS services is done in the GateManager Portal (Server > Config > SMS Settings) and in (Tree > Root > Domain > Domain configuration) which requires Server Admin rights. Note that from GateManager 7.1 the ability to enable SMS services requires ordering of the SMS Activation license from the your point of purchase.