The Racal VAdic modems are fast, have a sturdy power supply, and support the Hayes
AT command set. This line supports MNP 2-5 for error correction and compression, is both synchronous and asynchronous, and generally rated as very good to excellent.
PageGate requires Windows XP or newer (supports up to Server 2016), 1 Gb or better processor, 1 Gigabyte of available RAM and 100 Mb of free hard drive space, and an analog modem for dialup connections, serial cable for direct connections, mobile phone or wireless modem that supports the GSM
AT command set for wireless connections, or a dedicated (always on) internet connection.
They are CCITT and Bell compatible, and support the full Hayes
AT command set.