... , TCP,UDP,HTTP, SMTP, POP3 4800 SMS or 2600 MM GSM/GPRS RS232 Modem Pool(8 port) Q24PLUSWireless access to internetRS232 ... card slots850/900/1800/1900 MHz Comply with GSM Phase2 standardSend and receive SMS, MMS, e-mail and datainput voltage:100V-240VWorking ... tone multi-frequency function(DTMFSend maximum 4800 SMS or 2600 MMS per hourSize: 440*220*50mmWeight: 4.5kgAccessories:8-RS232-PCI ...