[EdLUG] Text messages

[Edinburgh Linux Users Group]

The response to your handset just means that your SMS has been 
delivered to the network, it does not mean that it has reached the recipient.

SMS message delivery is "best effort," so there are no guarantee 
when, or even if, a message will actually be delivered to its 
recipient. Queuing and delays in the network are common, particularly 
between the various providers, and if you have a roaming SIM (which 
lets you use any in-country network) then it gets even more interesting...

The Wikipedia article has some interesting links
 >https://en.wikipedia.org/wiki/Short_Message_Service

Ian

At 10:17 AM 13-06-16, Edinburgh Linux Users Group wrote:
>I had a situation Friday evening where my handset said messages were 
>being sent,GiffGaff(GG), but were not being delivered!
>Eventually from the GG status page I found that a mast in the 
>Inverkeithing are where I live was  out of action.   The messages 
>were eventually delivered about 14 hours later!  I was receiving 
>texts OK, and voice both ways was working
>
>Can anyone point me to a URL where I can read about how the mobile 
>network works, or is supposed to work?
>
>Its the way my handset said Sent  but they weren't delivered that 
>perturbs me.  That just isn't a good system protocol.
>
>Andrew
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