amintlk
Member level 1
hi .. i used sim900a before and it work well .. but recently i use another sim900a again but when i send AT+CMGR=1 for sim900 to read the message detail it feedback me these
+CMGR: 0,"",26
0791893905004100240C918939556271820000511172310320410748341A8D46A301
before that i received +CMTI: "SM",1 correctly
... when i send AT T it feedback me OK
and when i calling the number it feedback me RING RING
what's the problem? is it need upgrade?
+CMGR: 0,"",26
0791893905004100240C918939556271820000511172310320410748341A8D46A301
before that i received +CMTI: "SM",1 correctly
... when i send AT T it feedback me OK
and when i calling the number it feedback me RING RING
what's the problem? is it need upgrade?