European GSM network carriers usally provide delivery notifications for short messages. The according option does not exist until firmware 1.1.4 on Apple’s iphone. I currently even do not know an tool such as SMSD or iSMS enabling this feature. Here come the first days of SMS into play. It is possible to include special GSM codes at the header of a short message. The following prefix will trigger a SMS delivery report if supported by the network carrier and your plan.
- Vodafone (D2), E-Plus (and all derivatives), O2, …: *N#
- T-Mobile (D1): *T#
Assume you want to be notified, whether the following message reached the addressee:
“Hi sweetheart, I love you!”.
Then, type the following content in your short message:
“*N#Hi sweetheart, I love you!”
If your carrier is T-Mobile use *T# instead of *N#. It is not important which carrier the addressee using, it is important which carrier the sender’s short message operating center uses.
Once your message has been delivered to the addressee’s mobile a short message is automatically generated containing date and time when the message was delivered. This service is currently not charged, but this may depend on the service provider.