Air Messenger Pro   
http://www.internetsoftwaresolutions.org

Air Messenger Pro is a fully featured alphanumeric paging software with TAP, SNPP, ETAP, WCTP, and E-Mail support that allows you to send pages to Pagers and Digital Cellular Phones. The use of Air Messenger Pro in your company can save you money by sending messages to your company Cellular Phones or Pagers and not having to actually talk to a person and therefore saves Air Time. SNPP allows you to send messages over the Internet to carriers such as Nextel, PageMart, Skytel, and others. SNPP & ETAP allow for message confirmation and additional features that are not support in the standard TAP/IXO protocol. Command Line utility also included. Supports WCTP Over HTTPS and does not require SMTP sever. With an easy to use interface and easy setup makes Air Messenger Pro a must have for all your messaging needs. Features: Group Lists, Groups on the fly, Canned Messages, Multiple Provider Support, Multiple User and Group List, Spell Check, Delivery Redundancy, SNPP, SNPP Responce, 2-Way Pager Support, ETAP, DDE, E-Mail Paging, and more.

Call Soft Pro   
http://www.mycallsoft.com

An advanced, yet simple-to-use voice mail and fax software for your home or business. All the features you'd expect are supported: multiple configurable mailboxes, faxing, ability to block telemarketers, call monitoring and logging, Caller ID with pop-ups and voice alerts, customizable and personalized greetings, and conversation recording. Call Soft can notify you of a call by E-mail, pager or calling another phone. There are several remote options such as have your E-mail read to you, run a program and eavesdrop just to name a few. Lastly, Call Soft looks just as great as it works!

PageGate   
http://www.notepage.net

Pagegate is a sophisticated wireless messaging server application. It can send SMS and text messages to pagers, mobile phones, PIMs and other wireless devices. PageGate can accept messages from many different sources: networked computers running the PageGate Windows Client program, email messages that are received in (SMTP) or messages that are collected (POP3), web pages on an intranet or the Internet (CGI), executables run from the commandline, text files that are scanned for messages, serial ports that receive textual data, and data received from a modem connection. PageGate supports several delivery protocols and delivery methods. Messages can be delivered via the Internet using the following protocols: SNPP, WCTP, and SMTP (email). Messages can be delivered via modem using the following protocols: TAP, UCP, GSM, and touch Tones. Messages can also be delivered directly to a terminal or encoder via a direct serial (RS232) connection. PageGate is scaleable for high-end / high-throughput applications. Up to sixteen modems can be used simultaneously for message delivery. Up to sixteen simultaneous internet connections are also supported. A single PageGate server can be run across multiple computers for distributed message processing. PageGate supports many advanced features. Redundant outbound connections in the event of hardware or phone line failures. Message rerouting on delivery failure enables messages to be sent to secondary devices, or to be resent to the same device through a different connection method. On-call groups can be used with schedules to automatically route messages to just the people that are currently 'on call'. Non-critical messages can be automatically held overnight and delivered at the beginning of the business day. PageGate makes administration easy with a centralized database, an easy to use object oriented administration program, and a real-time monitoring program that can be run remotely (even over the internet)