... ,1WAN,1LAN2100MHzWCOIP88WCDMA,1WAN,1LAN2100MHzWCOIP8-328WCDMA,1WAN,1LAN2100MHz wholesale box 1. 8 Channels GSM/CDMA/WCDMA VoIP Gateway2 ... SMS receiving/batch sending4. AT command compatible wholesale box Parameter data shit Call Control ProtocolsSIPNumber of Channels8 channels ... balance, balance alarm l Centralized network management l Caller ID detection and generation l Master and slave SIP ...