SMSC client .NET library is a set of managed .NET and COM (ActiveX/OCX) components for easy creation of applications implementing the SMS/EMS/WAP communication with the SMSC through TCP/IP. Library supports SMPP, UCP, CIMD2 and SEMA protocols. Sending and receiving of SMS, EMS, WAP PUSH, logos, ring-tones etc. Receiving messages sent to large GSM accounts. Send and receive 7-bit text, Unicode (UCS2) and binary messages. Connection keep-alive ...