... wireless voice cards, slot type is PCI-E socket, line PCI-E 2.2 standards. It is mainly ... ,Support GSM: 850M/900M/1800M/1900M. 4,Support 8 channels, user can choose to insert wireless, FXO ... difficulty of development. 2, GSM800 support 8 channels, user can choose to insert wireless, FXO or ... asterisk cards, the driver will distribute the voice channels automatically. Applications: 1, GSM (CDMA)- VoIP ...