For some networks/countries with strict SMS delivery regulations, or the recipients that has enabled DND (do-not-disturb) restrictions on their line; CheapGlobalSMS allows you to bypass such restrictions here by pre-registering your sender-id with the corresponding network operators where applicable.
Sender id is required for sending sms to +61, +1600, +86, +91, +98, +1, +44 or any specific case requested