TG Outbox interface shows the following statuses: Sending and Successful.
Successful status is set after the SMSC has accepted the message for delivery.
There is no option to request a delivery report, which is a standard feature on mobile phones and competing SMS gateways….
It informs the sender when the message has been received by the recipient’s mobile phone.
Feature should work in the following manner:
- A new flag “Request delivery report” should be added to the “Send SMS” view
- After the delivery report has been received, a new Asterisk AMI UpdateSMSSend event should be generated with the status that the message has been delivered.
Few info links:
https://dexatel.com/blog/delivery-report-for-text-messages/
https://www.infobip.com/glossary/dlr-delivery-reporting
PDU-s generated by the gateway have TP-SRR flag set when sending SMS, but doesn't seem to process responses.