Carrier Delivery Trace

Should there be a delivery-related concern, Convey can perform a manual trace to a carrier network requesting confirmation of the message’s end destination. Depending on carrier, this step can take anywhere from two to ten days.

Numbers API Lookup

Aerialink

The Aerialink Numbers API lookup is a query service which provides telephone number information useful for troubleshooting delivery issues. Some of the information provided includes:

• landline or mobile status
• number validity
• mobile carrier
• country

Aerialink customers concerned that messages are not reaching their destinations or are not doing so in a timely manner should initiate a support request. Aerialink can run special traces to a carrier via our connections to verify the message’s end location.

Device Information Detection

There are some creative ways to detect the phone type and model. Please inquire with a Convey Engineer who can explain how a small amount of coding on your side can provide you with some of this value added data.

Retry Period

If an SMS message cannot be delivered to its destination immediately for any reason, the carrier SMSC will invoke a retry procedure with which they may continue to attempt delivery over a period of time before the message is considered to have failed. If the recipient device is powered off, for example, the message will be kept in an operator’s retry scheme for the duration of their retry period (24, 48 or occasionally 72 hours depending on SMSC), after which point the message will expire.

Store and Forward

SMS is a store-and-forward technology, which means that when a message is sent, it is first stored in an SMSC before being forwarded to its end destination. This means that if the destination handset is unable to receive the message immediately, the message can be forwarded to its recipient at a later point in time.

Because of the nature of store-and-forward technology, the likelihood that a message can be completely lost is very minimal. In the instance that a message is dropped, there are usually internal notifications which are triggered so that action can be taken.