2[1]ETSI GSM 3.40, Digital Cellular Telecommunication System(Phase 2+) Technical Realisation of the Short Message Service Point-to-Point,v. 4. 13. 0,1996; (5)
3[2]ETSI GSM 3.41, Digital Cellular Telecommunication System (Phase 2)Technical Realisation of the Short Message Service Cell Broadcast (SMSCB), V. 5. 2. 0,1996;(5)
4[3]CCITT E. 164, Numberin Plan of the International Telephone Service, v. 5, 1997
5[4]SEMA Group Telecommunications,SMEA2000 v. 4.0, Open Interface Specification
