Dial-out through the OnSite is required by certain applications used in computer management that poll devices for status or other information. The OnSite supports dial-out through GPRS (GSM) and 1xRTT (CDMA) wireless PCMCI cards. For PCMCIA card slot 1, the device name is ttyM1; for slot 2, the device name is ttyM2.The dial-out application connects the port to a remote TCP socket at the specified IP address through a wireless phone network service and an Internet access service.