AT+CMGR=1
+CMGR: 3,,29
0791448720003023040C914477238442230000010180029182408EC832BBEC3ECD41F0B0BCECA6CF41617919447EDFDD20FABBFD96CBDF7717C8F9A683E6757919744787E9A07B1914969741753888FE06BDDDA079DD4D0EE75DA06B9ACD06B1CB74501DB476BFEF2E50505E06E5DF75D0991D2683F2EF3AA89D9ECFCB64105946FE81AEE5301D5D9683D8EFF7BA4C06C1CB7273794C0F01
OK