SMS delivery receipt err:0

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Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 5380
Registered: 08-2008
Posted on Monday, July 27, 2015 - 01:08 pm:   

A query from our support mailbox:


Hi Keith,

Wonder if I can bother you with a support query:

I sent out a bunch of sms yesterday; I selected 'Yes' for delivery receipt.

I am aware that the sms went out as I sent one to my phone as well; However, this is what I see in the message inbox (in the web interface)

id:55970847 sub:001 dlvrd:001 submit date:1507270023 done
date:1507270023 stat:DELIVRD err:000

What does the err me:000 mean? I know the phone did receive the message.

How do I know if all the sms were indeed delivered (Any way I can know if the recipient opened and read the sms?)

NowSMS formats SMS delivery reports using the SMPP format. More details can be found in Appendix B of the SMPP 3.4 Protocol Specification, which can be found here:

To briefly highlight your example:

err=0 (no error)

Note that some mobile operator systems report a delivered status before the message has actually been delivered (especially in the USA).

SMS does not support read (open) receipts. MMS does support read receipts, but some mobile operators do not...and some handsets prompt the recipient to ask whether or not to send a read receipt.

NowSMS Support

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