Why do you charge for failed SMSs?

exotel is also a messaging platform when we claim we're a platform, we mean that our partner sms gateway providers and their operators handle the end services and distriution exotel essentially sends all of your sms requests to our partners, who have established the necessary infrastructure to deliver these messages to end consumers the delivery of an sms to a carrier's smsc is charged by our gateway providers and their suppliers this is a common practice in the industry as a result, we have no choice but to bill you for the smss that were not sent the following are the justifications for charging operators in india only charge for sending an sms; there are no expenses for terminating an sms let's imagine a vodafone sms is delivered to a jio number the sms passes through vodafone's network before being transmitted to jio's network (in this procedure, vodafone's network elements are fully utilized) "you have used my network; now pay me!" vodafone says second, when the sms is sent for delivery to the end subscriber, the system tries to send the sms many times (for over 24 hours) as a result, the network utilization for failed messages is substantially higher! the smss are not delivered in the majority of non delivery incidents for the following reasons a the called party terminal equipment has been turned off b the called party terminal equipment has been removed from the service area c the called party terminal equipment has been removed from memory (not enough memory to receive the sms) d the calling party dialed an invalid number as a result, operators make many gallant attempts to convey your message while charging us for it as a result, the following elements may appear in your reports