PageGate 

Messaging server software sends: SMS text messages to: pagers, mobile phones. Messages can be accepted from: networked computers, email, web pages, commandline, text files, serial ports, modems. Messages can be sent via Web or modem.
sms text messaging text messaging paging software pager pager software mobile mobile phone alphanumeric paging software wireless wireless messaging

SMS and Pager Toolkit 

Toolkit to Send and Receive SMS messages. Features SMSC providers (TAP,XIO,UCP), GSM devices (incl. WaveCom Fastrack) and GSM phones (incl. Nokia,Siemens,Motorola). TAPI,PDU,FBus and Unicode compliant. Samples for VC++, VB, VB.NET, VC#.NET and ASP.
sms pdu tap xio gsm smsc fbus nokia unicode tapi wavecom wap gprs infrared

NotePager Pro 

Send text or SMS messages to pagers, mobile phones, and PIMs using an easy to use desktop application. Send messages through the Internet or a modem. Group messaging, pre-programmed messages and scheduled paging. Send to anyone, anywhere, any time!
sms software messaging cellular pager wireless messaging pagers wireless messaging paging software alpha paging phone mobile

SendToPager Personal 

Send numeric and alpha-numeric messages from your PC to pagers and cell phones from the handy Windows application. Your contacts are stored in the Personal Address Book and reused for your messages. Recommended for Home and single-PC users.
sms pager message send utility tap

SendToPager FREE 

Send numeric and alpha-numeric messages from your PC to pagers and cell phones from the handy Windows application. Three contacts are stored in the Personal Address Book and reused for your messages. Recommended for Home and single-PC users.
sms pager message send utility tap free

SendToPager Gold 

Send messages from corporate network computers to pagers and mobile phones. Flexible Messaging Server and thin Messaging Client, cooperating in the Windows Network environment, will make you business communication easy and effective
sms pager message send utility tap network